Mary Seacole, London, N7 6QX

Mary Seacole, London, N7 6QX

Sustainable Design and Construction Statement

Job No: 84873

Author: Rimesh Patel

Checked by: Laura Mansel-Thomas

Date: 16/07/2015

Status: Final

Sustainable Design and Construction Statement Mary Seacole Job no: 84873 - Date: July 2015

Mary Seacole – Sustainable Design and Construction Statement Page 2 of 45

Document Control

Revision Stage Date Author Checked by

1st Issue Planning 19.06.2015 RP LMT

Rev A Planning 09.07.2015 RP LMT

Final Planning 09.07.2015 RP LMT

Team

Client

Islington Council

Architect

Islington Council

M+E Engineers / Sustainability

Ingleton Wood LLP

Planners

HTA Design LLP

Employers Agent

Walker Management

Civil / Structural

MLM

Daylight / Sunlight

Malcom Hollis



1.0 Executive Summary ........................................................................................................... 4

2.0 Introduction ........................................................................................................................ 5

2.1 Objective ................................................................................................................................................ 5

2.2 Background ............................................................................................................................................ 5

2.3 Utilities ................................................................................................................................................... 6

2.3 Microclimate ........................................................................................................................................... 7

3.0 Policy Context .................................................................................................................... 9

3.1 Part L 2013 ............................................................................................................................................ 9

3.2 National Planning Policy Framework (2012) ......................................................................................... 9

3.3 The London Plan (2015) ........................................................................................................................ 9

3.4 GLA Sustainable Design and Construction SPG (2014) ..................................................................... 10

3.5 Local Policies ....................................................................................................................................... 10

4.0 Energy and Carbon .......................................................................................................... 11

5.0 Water ................................................................................................................................. 26

6.0 Waste ................................................................................................................................ 29

7.0 Materials and Construction ............................................................................................. 32

8.0 Adaptation to Climate Change ........................................................................................ 34

9.0 Environmental Assessment ............................................................................................. 39

10.0 Landscape and Nature ..................................................................................................... 41

11.0 Management ..................................................................................................................... 43

12.0 Appendix ........................................................................................................................... 45

Appendix 1 – Future Proofing Strategy ....................................................................................................

Appendix 2 – Preliminary SAP Analysis ..................................................................................................

Appendix 3 – Overheating Analysis .........................................................................................................

Appendix 4 – SUDS Statement ...............................................................................................................

Appendix 5 – Code for Sustainable Homes Pre-Assessment Report .....................................................

Appendix 6 – Draft Green Performance Plan ..........................................................................................



1.0 Executive Summary

Key sustainable targets and objectives include:

Low Energy and Low Carbon Design

Achieve a better CO2 emission rate (kgCO2/m2) than the existing nursery building.

Optimise thermal performance beyond Building Regulations Part L1A 2013 requirements.

Reduce CO2 emissions by at least 35% compared to a baseline Building Regulations Part

L 2013 development (excluding unregulated power) via energy efficient heating and hot

water systems, lighting and LZC technologies.

Water Conscious Design

Specify low water fittings to achieve a water efficiency target of 95 litres/person/day.

Provision of rainwater recycling for irrigation purposes.

Waste Minimal Design

Minimise waste throughout all phases of the development, including design, demolition,

construction and operation.

Provide dedicated storage facilities for general and recyclable waste in line with CfSH

and Islington Council’s requirements.

Green Materials and Construction

Majority of key building elements to achieve a Green Guide rating of between A+ and D.

Implement the Considerate Constructors Scheme (CCS) during the site construction.

Implement measures during site construction to reduce air, ground and water pollution.

Climate Change Adaptability

Incorporate SUDs (i.e. green roof, permeable paving, attenuation tank etc.) to minimise

surface water run-off.

Implement measures to mitigate against overheating issues; ensure that adequate

internal levels of comfort can be maintained with future predicted weather scenarios.

Landscape and Nature

Maintain, protect and enhance the biodiversity and ecological value of the site.

Increase levels of overall tree coverage to protect against hotter summers.

Specification of local plant species requiring limited watering where possible.

Management

Provision of a Building User Guide covering a wide range of information including

operational issues and issues relating to the site and surroundings.

Monitor the performance of the building in use against key sustainability indicators to

ensure design measures are working effectively and efficiently.



2.0 Introduction

2.1 Objective

This document has been produced by Ingleton Wood for Islington Council to support the planning application

for the former Mary Seacole Nursery site.

2.2 Background

The proposal is for the demolition of the existing Mary Seacole

Nursery and the development of a new design led residential

building that reflects the nature and scale of the street.

The nursery was built more than 20 years ago, and it is understood

its usage has gradually declined and been out of use since 2013.

The building is of little architectural merit and no statutory protection

exists to protect it from demolition.

The latest EPC shows it has a C rating and an emission rate of

30.52kgCO2/m2. As a benchmark, if a similar building was to be

newly built, it would achieve a B rating.

In addition, the site is currently lacking in terms of biodiversity and

ecological value.

As a minimum, the proposed scheme will have an improved building

emission rate and ecological value compared to the existing nursery.

The new scheme will consist of 15 new residential apartments over

4 floors, including:

Social Rent:

1no. 1B2P (WC) flat

6no. 2B4P flat

1no. 3B5P flat

Private Sale:

2no. 1B2P flat

1no. 2B3P flat

1 no. 2B4P duplex

3no. 2B4P (including 1 WC) flat

EPC of existing building



2.3 Utilities

The proposed development is in an area rich in infrastructure, with utility services running immediately

adjacent to the site along Tollington Way and Bryett Road. Key utilities include:

LV electric cables

Telephone

Cable TV

Gas mains

Water mains

Due to the existing building on-site and the small scale of the proposed scheme, there is to be limited

additional pressure and undue stress on the existing infrastructure.

Location and mapping of underground services and drainage



2.3 Microclimate

The site is located in a residential area at the junction between Tollington Way and Bryett Road, towards the

north-west of Islington.

The area has a temperate maritime climate which is characterised by a lack of extreme weather conditions

with warm summers and cool winters. During the summer months, the average temperature reaches 19ºC

with average maximum temperatures being up to 23ºC; during winter, average temperatures are

approximately 6-8ºC. The effects of climate change and the urban heat island effect could cause an increase

in temperature in the coming years.

During the summer, the sun reaches a maximum altitude of 61.9° (rising in the NE and setting in the NW),

while the maximum altitude in winter is only 15.0°. This is reflected in the variation of solar radiation

throughout the year; the total annual global horizontal solar radiation is 951.5W/m2, with a maximum monthly

average of 145.5W/m2 occurring in June of 145.5W/m2 and a minimum monthly average of 15.2W/m2 in

December.

Although there are existing residential buildings in close proximity to the site, it enjoys good solar access with

limited overshadowing issues; the surrounding buildings are all 3-4 storeys.

The annual precipitation for the area is approximately 600mm. It is predicted that annual rainfall levels will

remain fairly constant, but will increase in winter and decrease in summer due to the effects of climate

change.

The average wind speed is 4.0m/s, coming predominantly from a south-westerly direction.

The main source of noise and air pollution in close proximity to the site comes from motor vehicles passing

along Tollington Way to the north of the site. Noise levels along Tollington Way can reach up to 65 - 70dBA,

and drop to 55 - 60dBA to the rear of the site. Greater levels of pollution arise along Holloway Road (A1) and

Hornsey Road (A103), however they are 225-250m away, so their impact on the site is limited.

Annual sunpath Annual wind rose



Average temperature (°C) Average solar radiation (W/m2)

Noise map (road) Flood risk zone map

Nitrogen Dioxide Annual Mean (μg/m3) PM10 Annual Mean (μg/m3)

Local air pollution maps



3.0 Policy Context

3.1 Part L 2013

Building Regulation Part L tightly controls the minimum performance of building fabric, equipment selection

and CO2 emissions by setting the baseline TER which must be achieved. Approved Document Part L1A is

responsible for controlling new-build residential buildings.

The new Building Regulations Part L 2013 came into force since 6th April 2014. The Part L 2013

specifications have been strengthened to deliver 6% CO2 savings across the new domestic build mix (and

9% CO2 savings across the new non-domestic building mix) relative to Part L 2010.

Criteria 1 of the new Part L1A 2013 Regulations (for new dwellings) now requires that “the calculated

Dwelling Fabric Energy Efficiency (DFEE) rate must not be greater than the Target Fabric Energy Efficiency

(TFEE) rate. This is in addition to dwelling emission rate (DER) not being greater than the target emission

rate (TER).

3.2 National Planning Policy Framework (2012)

The National Planning Policy Framework was published on 27 March 2012. It sets out the government’s

planning policies for England, outlining how the planning system protects the environment and promotes

sustainable growth.

The Framework sets out planning policies for England and how they are expected to be applied. It provides

guidance for local planning authorities and decision-takers, both in drawing up plans and making decisions

about planning applications. It includes 12 core planning principles. The main relevant principles are:

7 - Requiring good design;

10 - Meeting the challenge of climate change, flooding and coastal change.

3.3 The London Plan (2015)

Strategic planning in London is the shared responsibility of the Mayor of London, 32 London boroughs and

the Corporation of the City of London. Under the legislation establishing the Greater London Authority (GLA),

the Mayor has to produce a spatial development strategy (SDS) – which has become known as ‘the London

Plan’ – and to keep it under review.

The London Plan sets out the overall strategic plan for London, setting out an integrated economic,

environmental, transport and social framework for the development of London over the next 20–25 years.

The London Plan includes a range of policies (primarily in Chapters 5 and 7) that deal with matters relating to

sustainable design and construction.



3.4 GLA Sustainable Design and Construction SPG (2014)

This SPG aims to support developers, local planning authorities and neighbourhoods to achieve sustainable

development. It provides guidance on to how to achieve the London Plan objectives effectively, supporting

the Mayor’s aims for growth, including the delivery of housing and infrastructure.

The guidance in this SPG is intended to:

• provide detail on how to implement the sustainable design and construction and wider environmental

sustainability policies in the London Plan;

• provide guidance on how to develop more detailed local policies on sustainable design and

construction;

• provide best practice guidance on how to meet the sustainability targets set out in the London Plan;

and

• provide examples of how to implement sustainability measures within developments.

As SPG, this document does not set new policy, but explains how policies in the London Plan should be

carried through into action.

3.5 Local Policies

The following local planning policy documents have been reviewed in relation to energy and sustainable

design:

Islington’s Core Strategy (Feb 2011)

Islington’s Development Management Policies (June 2013)

Islington’s Environmental Design SPD (Oct 2012)

Islington’s Environmental Design SPD Companion Guide (Oct 2012)

Islington’s Recycling and Refuse Storage Requirements (June 2013)

Islington’s Response to the Ministerial Statement of 25th March.

Details of relevant policies are highlighted in the following sections of the report.



4.0 Energy and Carbon

4.1 Planning Policy

4.1.1 The London Plan (2015)

Policy 5.2: Make the fullest contribution to minimising carbon dioxide emissions in accordance with the

following energy hierarchy:

1. Be lean: use less energy

2. Be clean: supply energy efficiently

3. Be green: use renewable energy

Ensure that major developments meet the following targets for carbon dioxide emissions reduction in

buildings.

Residential buildings

Year Improvement on 2010 BRegs

2010 – 2013 25% improvement

2013 – 2016 40% improvement

2016 – 2031 Zero Carbon

Policy 5.3: Minimise carbon dioxide emissions across the site, including the building and services (such as

heating and cooling systems). Avoid internal overheating and contributing to the urban heat island effect.

Policy 5.5: Prioritise connection to existing or planned decentralised energy networks where feasible.

Policy 5.6: Evaluate the feasibility of Combined Heat and Power (CHP) systems, and where a new CHP

system is appropriate also examine opportunities to extend the system beyond the site boundary to adjacent

sites. Major development proposals should select energy systems in accordance with the following

hierarchy:

1) Connection to existing heating or cooling networks

2) Site wide CHP network

3) Communal heating and cooling

Policy 5.7: Provide a reduction in expected carbon dioxide emissions through the use of on-site renewable

energy generation, where feasible.

Policy 5.9: Reduce potential overheating and reliance on air conditioning systems in accordance with the

cooling hierarchy.

4.1.2 GLA Sustainable Design and Construction SPG (2014)

2.4.3: The Mayor will adopt a flat carbon dioxide improvement target beyond Part L 2013 of 35% to both

residential and non-residential development.



Best Practice: Developers should aim to achieve Part L 2013 Building Regulations requirements through

design and energy efficiency alone, as far as is practical.

4.1.3 Islington’s Core Strategy (2011)

Policy CS 10: Minimise on-site carbon dioxide (CO2) emissions by using less energy through maximising

energy efficiency, supplying energy efficiently using low carbon heating and cooling systems, and using on-

site renewable energy generation.

All development will be required to contribute to the development of DE networks, including by connecting to

such networks where these exist within the proximity of the development.

Offset all remaining CO2 emissions associated with the building through a financial contribution towards

measures which reduce CO2 emissions from the existing building stock.

4.1.4 Islington’s Development Management Policies (2013)

Policy DM7.1: Integrate best practice sustainable design standards (as set out in the Environmental Design

SPD), during design, construction and operation of the development.

Policy DM7.3: Major developments are required to be designed to be able to connect to a

Decentralised Energy Network (DEN). Major developments located within 500 metres of an existing DEN will

be required to connect to that network. Major developments located within 500 metres of a planned future

DEN, which is considered by the council likely to be operational within 3 years of a grant of planning

permission, will be required to provide a means to connect to that network.

Policy DM7.5: Maximise incorporation of passive design measures to control heat gain and to deliver passive

cooling, following the sequential cooling hierarchy.

4.1.5 Islington’s Environmental Design SPD (2012)

2.0.10: As a minimum, use of good practice fabric energy efficiency standards, and where possible move

towards higher exemplar performance standards (e.g. Passivhaus).

Where a connection to a wider energy network is not possible, schemes should incorporate a communal

heating network linking all elements of the development, and be designed for very low return temperatures

(e.g. using under floor heating or oversized radiators).

After minimising CO2 emissions onsite, offset all remaining CO2 emissions through a financial contribution,

secured via s106 agreement (the price per annual tonne of carbon is currently set at £920).

4.1.6 Islington’s Response to the Ministerial Statement of 25th March (May 2015)

For all major residential schemes an on-site CO2 reduction target of 27% versus Part L 2013 (regulated

emissions) shall apply, and all remaining regulated CO2 emissions are to be offset.

The London Plan (Policy 5.2) on-site carbon reduction targets continue to apply and will need to be

demonstrated as part of any major residential planning application.



4.2 Design Response

4.2.1 Approach

The methodology employed to determine the potential CO2 savings for the development is in line with the

three step energy hierarchy:

Reduce Energy Demand (Be Lean) – Use less energy through a range of passive measures (i.e. enhanced

building fabric and air tightness, orientation, natural daylight, solar passive heating) and active measures (i.e.

efficient heating systems, low energy lighting etc.)

Energy Efficiency (Be Clean) – Once demand for energy has been minimised, investigate the feasibility of

connecting to an existing/proposed heat network, implementing a site-wide heat network, on-site CHP etc.

Renewable Energy (Be Green) – Use renewable and low energy sources to further reduce emissions.

Such technologies include:

Solar thermal heating

Biomass heating

Ground and air source heat pumps

Photovoltaics

Wind turbines

The software used to generate the results throughout this document was Elmhurst Energy Systems (SAP

2012) version 3.01r13.



4.2.2 Lean Measures

The energy efficient design of the proposed development will reduce the energy consumption and

associated CO2 emissions whilst maintaining high levels of comfort for the users. This will be achieved by a

range of passive measures (i.e. building massing, orientation, high performance building fabric) and active

measures (i.e. efficient heating systems, low energy lighting etc.).

Building Massing

The development consists of 15 residential apartments over 4 floors. The compact form is thermally efficient

to create a low surface area to volume ratio which minimises the heat losses and heat gains through the

building fabric. It is of a similar scale to the neighbouring buildings and does not have a major impact on its

surroundings.

The form and layout exploits the use of natural daylight wherever possible which reduces the reliance of

artificial lighting for portions of the day. Each flat is dual aspect and strategic room layouts ensure that

natural light is provided to rooms which benefit from it the most, i.e. living rooms, kitchen/dining, bedrooms

etc. In addition, the narrow floor plate and reduced room depths allows for good daylight uniformity to be

achieved and views out are provided where necessary. Less daylight critical spaces such as circulation,

WCs and storage is located internally.

The quantity and positioning of the glazing has been carefully considered to not only provide sufficient

daylight and views out, but also to maximise passive solar heating in winter whilst minimising the risk of

overheating in summer. For further details regarding strategies to minimise overheating, please refer to

section 8.0.

Building Fabric

The majority of traditional buildings suffer greatly from high heat loss from the facade and air leakage rates

resulting in excessive ventilation, discomfort to occupants and higher fuel bills. Improving the thermal

performance of the building fabric is one of the most cost-effective methods of reducing energy consumption

and carbon emissions.

By taking a ‘fabric first’ approach, the building fabric of the proposed development will achieve high levels of

thermal performance which exceed the minimum requirements of Building Regulations Part L1A 2013 and

Islington Council in order to provide better temperature control and reduce the demand for space heating.

The exact specification and corresponding U-values of the building fabric will be investigated in detail at the

next design stage.

Air Tightness

Heat loss may also occur due to air infiltration. Although this cannot be eliminated altogether, good

construction detailing and the use of best practice construction techniques can minimise the amount of air

infiltration into a building.

Current Part L Building Regulations (2013) sets a maximum air permeability rate of 10m3/m2 at 50Pa.

The development will improve upon this to achieve 3m3/m2 at 50Pa.



Thermal Bridging

The building fabric will be constructed so that there are no reasonably avoidable thermal bridges in the

insulation layers caused by gaps within the various elements, at the joints between elements, and at the

edges of elements, such as those around window and door openings.

Approved document L1 2013 refers to Appendix R in the SAP 2012 guidance for psi values (linear thermal

transmittance). Whilst thermal bridging must be minimised to enable buildings to perform well in terms of

energy conservation, consideration must also be given to the buildability issues in achieving target

parameters in practice.

For the proposed development, a y-value of 0.08 W/m2k is to be adopted.

Element Minimum Part L1A 2013 Requirements

(W/m2k)

Islington Council Requirements

(W/m2k)

Mary Seacole Proposal

(W/m2k)

External Walls U-value 0.30 0.20 0.15

Party Walls U-value 0.20 - 0.00

Floors U-value 0.25 0.20 0.11

Roofs U-value 0.20 0.13 0.11

Windows U-value 2.00 1.50 1.20

Solid Doors U-value 2.00 1.00 1.00

Air permeability 10m3/hr m2 at 50Pa. MVHR: ≤ 3.0

No MVHR: 5.0 3m3/hr m2 at 50Pa.

Thermal Bridging (y value) - - 0.08

Thermal performance standards for building fabric

Ventilation

Adequate ventilation is necessary for good health, the removal of odours and excess moisture vapour.

Contaminants such as formaldehyde and volatile organic compounds (VOCs) that may cause health

problems can accumulate in poorly ventilated homes. A well designed fresh air system can reduce these

levels significantly, replacing contaminants with clean fresh air.

The basic need for energy efficient buildings is to ‘build tight, ventilate right’ which means ensure unplanned

air infiltration is kept to an absolute minimum and introduce ventilation that is effective, draft free and energy

efficient.

The majority of old buildings rely on a leaky building fabric and opening windows to provide ventilation.

However, the result can be quite variable - too much on some occasions and too little on others.

New low energy developments of today tend to be mechanically ventilated (instead of naturally ventilated) to

allow for tighter control of internal conditions, increased responsiveness, be more energy efficient and due to

the reluctance of occupants to open windows due to privacy, security, noise and poor air quality.



Each residential unit at Mary Seacole will be ventilated by a whole-house mechanical ventilation with heat

recovery (MVHR) system. This will provide fresh air and remove pollutants when and where needed, in a

controlled manner.

Fresh air will be supplied to rooms where people spend the most time (bedrooms and living rooms) and stale

air will be exhausted from rooms where moisture and pollutants are most often generated (kitchens and

bathrooms). Each system will have a heat recovery unit which will reduce heating costs and energy

consumption by transferring heat from the warm inside air being exhausted to the fresh incoming outside air.

The MVHR units will be supplied with a summer by-pass control to ensure that exhaust air is not passed over

the heat exchanger in summer. They will also have a ‘summertime boost’ function to provide additional fresh

air when required.

Although MVHR units consume energy and emit CO2 during their operation, the heat recovered reduces the

overall space heating requirement. Compared to a natural ventilation strategy, CO2 emissions generated by

the proposed Mary Seacole scheme are reduced by 9.4% with efficient MVHR units.

All flats are dual aspect with openable windows to allow for cross ventilation to increase ventilation rates

when required.

The radiator circuits will be designed using a flow temperature of 70°C and a return temperature of 40°C.

This will both maximise the efficiency of the condensing boilers and ensure future compliance with CIBSE

AM12 “Combined Heat and Power for Buildings” if/when a district energy network connection becomes

feasible.

Space and Water Heating

The viability of a communal heating system has been assessed for the scheme.

The installation of a communal heating and hot water system is largely dependent on the space available within the development and possible future connection to a district heating network. The proposed development is limited to the area that is available to install a plantroom to accommodate a communal heating and hot water system within the footprint of the building or the surrounding landscape areas. A plantroom of approximately 25m2 would be required to service a 15 unit development, and due to the constraints of the site, this would inevitably mean that the number of flats would be reduced. Another issue is the lack of flueing options associated with a communal system due to the boundary of the building line being so close to neighbouring properties and the adjacent service road. Therefore, due to insufficient space for a central plantroom (without losing at least 1 flat) and that there are no existing or planned district heat networks nearby (refer to section 4.2.2), a communal heating system for this particular scheme is considered to be unviable. Individual gas boilers with hot water cylinders are proposed for each flat to provide space heating (via

radiators) and domestic hot water. Highly efficient boilers (SEDBUK rating A) with gas flue heat recovery will

be selected to deliver heat at maximum efficiency.

The radiator circuits will be designed using a flow temperature of 70°C and a return temperature of 40°C.

This will both maximise the efficiency of the condensing boilers and ensure future compliance with CIBSE

AM12 (2013) if/when a district energy network connection becomes feasible.



Domestic hot water is typically one of the largest energy consuming elements for residential uses. Although

little can be done passively to reduce this consumption, improvements in plant selection and the specification

of low water use appliances can offer significant savings compared to typical performance.

The proposed scheme is committed to achieving a minimum water efficiency target of at least 95 l/p/d,

equivalent to a 69 l/p/d saving compared to the London average of 164 l/p/d.

Cooling

There is no requirement for air conditioning within any of the dwellings.

Lighting

The building massing, room layout, and appropriately sized glazing ensures that natural daylight is provided

to the rooms which benefit most from it and reduces the reliance on artificial lighting.

When artificial lighting is required, it will be provided by low energy lighting fittings throughout.

Metering

The energy consumption will be individually metered for each flat and displayed to occupants by a correctly

specified energy display device (i.e. showing time, mains energy consumption, CO2 emissions etc.).

Summary After Lean Measures

The following tables and graphs show the reductions in CO2 emissions and energy consumption for the

scheme after lean measures have been implemented.

There is an overall reduction of 2.07T (11.03%) of regulated CO2 emissions and 12.17MWh (15.44%) of

regulated energy use compared to a Part L 2013 notional building.

Unregulated uses (i.e. small power, cooking) are not accounted for in Part L calculations as they are not

influenced by design. However, these uses can have a large contribution to the overall CO2 emissions and

energy consumption. When including unregulated uses, the proposed scheme still achieves a 5.28%

reduction in total CO2 emissions and a 10.29% reduction in total energy usage.



Annual CO2 Emissions

kgCO2 kgCO2/m2 %

Improvement Part L 2013 TER

After Lean Measures

Part L 2013 TER

After Lean Measures

Regulated

Space heating 8,096 5,413 7.46 4.99 33.14%

Water heating 7,668 7,325 7.06 6.75 4.47%

Pumps and fans 584 1,536 0.54 1.42 -163.09%

Lighting 2,464 2,463 2.27 2.27 0.03%

Total 18,811 16,737 17.33 15.42 11.03%

Unregulated

Appliances 17,861 17,861 16.45 16.45 0.00%

Cooking 2,600 2,600 2.40 2.40 0.00%

Total 20,461 20,461 18.85 18.85 0.00%

Regulated + Unregulated

Total 39,272 37,198 36.18 34.27 5.28%

Table of Regulated CO2 Emissions After Lean Measures

Graph of Regulated CO2 Emissions After Lean Measures

11.03%

% London Plan



Annual Energy Consumption

kWh kWh/m2 %

Improvement Part L 2013 TER

After Lean Measures

Part L 2013 TER

After Lean Measures

Regulated

Space heating 37,479 25,059 34.53 23.09 33.14%

Water heating 35,499 33,911 32.70 31.24 4.47%

Pumps and fans 1,125 2,960 1.04 2.73 -163.09%

Lighting 4,747 4,746 4.37 4.37 0.03%

Total 78,850 66,675 72.64 61.42 15.44%

Unregulated

Appliances 34,414 34,414 31.70 31.70 0.00%

Cooking 5,009 5,009 4.61 4.61 0.00%

Total 39,424 39,424 36.32 36.32 0.00%

Regulated + Unregulated

Total 118,274 106,099 108.96 97.74 10.29%

Table of Regulated Energy Consumption After Lean Measures

Graph of Regulated Energy Consumption After Lean Measures

15.44%

%



4.2.2 Clean Measures

Connection to Existing/Proposed District Heating Networks

The London heat map has been developed by the London Development Agency to provide a resource which supports the development of decentralised energy networks and CHP. As a well as mapping heat demands, it provides details on the location of existing and potential heat networks, potential anchor loads and new developments which may connect or act as a catalyst for heat network development. Analysis of the heat map indicates that there are currently no existing or proposed district heat networks in close proximity to the site making any connection unfeasible. The nearest existing heat network in Islington is the Citigen network in Farringdon, and the council is currently delivering a heat network in Bunhill, which are both more than 5km away from the site. Islington Council’s Energy and Engineering team have also confirmed the site is not located within an area served by an existing district heat network and that there is no nearby network planned in the future. In addition, there are no opportunities in the vicinity of the site for a shared heat network.

Existing and proposed district heat networks

Site

Existing DH Network

Potential DH Network



Combined Heat and Power

CHP generates electricity whilst also capturing usable heat that is produced in this process. This contrasts

with conventional ways of generating electricity where heat is simply wasted.

CHP is ideally suited to very large mixed-use developments with a high heat demand where the heat is

required at different times of the day; the Carbon Trust state that CHP’s are most useful in scenarios where

heating is a constant requirement for at least 5000 hours per year. This allows for the CHP to be running

fairly constantly making it more financially viable and maximising CO2 reductions.

In addition, the GLA’s ‘Guidance on Preparing Energy Assessments (April 2015)’ states it is generally not

economical to install CHP for small-medium residential developments (e.g. containing fewer than 500

apartments). Due to the limited landlord electricity demand associated with small scale developments, CHP

installed to meet the base heat load would require the export of electricity to the grid. However, the

administrative burden of managing CHP electricity sales at this small scale where energy service companies

(ESCOs) are generally not active, and the low unit price available for small volumes of exported CHP

electricity, means it is generally uneconomical for developers to pursue.

The proposed scheme for Mary Seacole consists of only 15 residential units, and therefore has a very limited

heat demand which peaks in the morning and evening, and otherwise remains fairly low during the

remainder of the day.

It is concluded that due to the size and limited continuous heat demand of the proposed development, on-

site CHP is not an economically viable option.

Future Proofing Strategy

The site is not currently identified to be in an area with sufficient heat demand to make a district heat network viable, and the type and scale of the proposed scheme is unlikely to be a catalyst to do so in the near future. However, in the event that there will be a district heat network nearby to the site in the distant future, the layout and design of the proposed development allows for connection to the network to provide heating to each flat. A provisional area for a buried heat exchanger (sized for a 250kW peak output) has been allowed for outside of the building adjacent to Tollington Way; this is considered to be the likeliest route where a future heat network will pass the site. In addition, the risers in each core will have additional space allocated for future heating pipes which will service each flat via a heat interface unit (HIU). The supply and return heating pipes will connect each riser at roof level and this zone is to be protected with PVs and any other roof-mounted equipment being strategically located outside of the route. Refer to Appendix 1 for further details.



4.2.3 Green Measures

In order to achieve the London Plan target of a 35% reduction in CO2 emissions, a further saving of

4.51TCO2/year is required; the following low and zero carbon technologies have been considered.

Photovoltaics

Photovoltaics (PV) generate electricity by harnessing the energy of the sun and are available in various

forms such as flat panels for mounting on roofs to thin films which can be incorporated into building fabrics.

The efficiency of the PV cells are based on a number of factors, including the type of PV cell, orientation, tilt,

overshadowing etc.

The main types of PV are:

Mono-crystalline; these have an efficiency of 15-20%

Poly-crystalline; these have an efficiency of 11-15%

Thin film, these have an efficiency of 6-8% and can be used to integrate into other building materials.

The optimum mounting arrangement for PV arrays is south facing (within 45 degrees of south) with the array

tilted at 30 to 40 degrees from the horizontal.

PVs are a viable option for the site due to the available space at roof level, good solar access with little

overshadowing, and the limited visual impact on the surroundings compared to other technologies (such as

wind turbines).

Solar Thermal Heating

Solar thermal panels utilise the energy from the sun to provide domestic hot water. The system is not

suitable for space heating since this is not required during the summer periods when solar thermal is the

most effective.

Similar to PVs, solar thermal panels are typically roof-mounted and their optimum arrangement is south

facing and tilted at 30 to 40 degrees from the horizontal.

The main two types of solar thermal panels are evacuated tube and flat plate collectors; although evacuated

tubes are more expensive, they are more efficient and produce higher temperatures.

The use of solar thermal panels has been discounted as they would be limited to domestic hot water only,

and they would compete for the same space on roof-level with PVs, which are a more viable option.

Biomass Heating

The burning of biomass fuels such as wood chips or pellets, can be used for providing space heating and/or

domestic hot water. The CO2 emitted during combustion is balanced by that absorbed during the fuels

growth cycle. Therefore, biomass fuels approach a carbon neutral process. A fuel store is required and boiler

flues are typically taller than a gas equivalent. Since NOX emissions are higher than those of gas, planning

and land use should be considered.



Biomass has been discounted as it emits more local pollution (i.e. NOX) than gas, requires significant fuel to

be supplied, and the large area required for storage.

Ground Source Heat Pumps

Ground source heat pumps (GSHPs) utilise the steady state temperature of the ground provide heating and

cooling efficiently. Systems work best when they are used for heating and cooling as they enable the ground

temperatures to re-balance over the year.

There are two common types of GSHP; horizontal GSHPs which just require pipes laid into the ground and

vertical GSHPs which use probes inserted vertically down ranging from 100m to 800m long. Horizontal

systems are the cheapest to install but have lower returns than the vertical systems.

GSHPs have been discounted due to the high installation cost, minimal CO2 savings compared to a gas-

fueled system (due to the use of electricity and its associated high carbon content), and concerns over the

longevity of the returns as the development is heat led with no requirement for cooling.

Air Source Heat Pumps

Air source heat pumps (ASHPs) are similar to GSHPs, but instead of using heat exchangers buried in the

ground, heat is extracted from the external ambient air and upgraded to provide space heating and/or

domestic hot water. ASHPs are much cheaper compared to GSHPs as no ground works is required, and

there is very need little maintenance once installed, however they are not as efficient (lower COP).

The use of ASHPs has been discounted due to potential noise issues with the externally located evaporators

and minimal CO2 savings compared to a gas-fueled system (due to the use of electricity and its associated

high carbon content).

Wind Turbines

Wind turbines harness the energy of wind to turn a rotor that is connected to an electrical generator. Since

wind speed is the governing factor, wind turbines are only suited to sites with sufficient exposure to the wind;

heavily built up areas are generally impractical.

Due to the effective wind speed in the area, as well as planning issues, noise control and flicker, this is not a

recommended option.

Preferred Renewable Technologies

The installation of photovoltaics are proposed for Mary Seacole to take advantage of the available roof space

with good solar access and limited overshadowing.

A 11.25kWp system is proposed consisting of 45no. 250Wp panels.

These are preliminary figures and will be assessed in more detail as the scheme progresses.



4.2.4 Summary

The proposed energy strategy for Mary Seacole (through appropriate use of the facade, efficient systems

and the use of renewable energy systems) achieves the following savings in CO2 emissions:

An overall 36.58% reduction in regulated CO2 emissions compared to a Part L 2013 notional development,

which consists of:

A 11.03% CO2 saving due to energy efficiency measures alone;

o Building massing which maximises natural daylight and solar passive heating

o Building fabric and air tightness which outperforms Part L 2013

o efficient individual gas boilers with flue gas heat recovery

o 100% low energy lighting

o MVHR

A 28.72% CO2 saving due to the inclusion of a 11.25kWp PV system.

The information set out in the following table and graph below demonstrate compliance with the Council’s

policy requirements and the London Mayor’s energy hierarchy.

Please refer to the results from the preliminary SAP analysis (Appendix 2) for further details.



Regulated Unregulated

CO2 Emissions

(TCO2/year)

Savings

(TCO2/year) % Savings

CO2 Emissions

(TCO2/year)

Part L 2013 TER 18.81 - - 20.46

Be Lean 16.74 2.07 11.03% 20.46

Be Clean 16.74 0.00 0.00% 20.46

Be Green 11.93 4.81 28.72% 20.46

Total Cumulative Savings 6.88 36.58%

Total target Saving 6.58 35%

Annual Surplus 0.30 -

Summary Table of CO2 Emissions

Graph of CO2 Emissions (regulated only)

36.58%

% London Plan



5.0 Water

5.1 Planning Policy


Policy 5.15: Minimise the use of mains water by incorporating water saving measures and equipment and

designing residential development so that mains water consumption would meet a target of 105 litres or less

per head per day.

5.1.2 GLA Sustainable Design and Construction SPG (April 2014)

Priority: Maximise the opportunities for water saving measures and appliances in all developments, including

the reuse and using alternative sources of water. All developments should be designed to incorporate

rainwater harvesting.

Best Practice: All residential units, including individual flats / apartments and commercial units, and where

practical, individual leases in large commercial properties should be metered.

5.1.3 Islington’s Core Strategy (Feb 2011)

Policy CS 10: All development to demonstrate that it meets best practice water efficiency targets and, unless

it can be shown not to be feasible, incorporates rain and grey water recycling. Residential schemes will be

required to achieve a water efficiency target of 95 litres/person/day or less.

5.1.4 Environmental Design SPD (Oct 2012)

4.0.3: Major developments, minor developments creating new units, and non-residential extensions of 100m2

or greater need to demonstrate that they have:

Minimised water demand and maximised water efficiency

Incorporated rain- and greywater recycling where feasible

4.0.6: Use of soft landscaping and planting requiring high levels of irrigation should be avoided.



5.2 Design Response

Although the UK appears to enjoy plenty of rainfall, it has less available water per person than the majority of

other European countries, and London is one of the most water stressed cities in the world. The average

consumption in London is currently 164 litres/person/day (l/p/d), which is approximately 20 l/p/d above the

national average.

There is a risk that the increasing demand will exceed the available water resource, especially during periods

of drought. As the population continues to increase and with other predicted climatic changes, water

availability and quality is likely to become as big an issue as climate change itself.

5.2.1 Efficient Low Water Consuming Fittings

To enable Mary Seacole to be a low water consuming development, it will appreciate water as a limited

resource, and ensure that its use is minimised and controlled as appropriate whilst still maintaining comfort

and effectiveness for the users.

The development will be designed to achieve a minimum water efficiency target of at least 95 l/p/d

(equivalent to 34.68m3/person/ year), as stipulated by Islington’s Core Strategy. This is a 10% improvement

on the 105 l/p/d required to achieve Code Level 4.

The following indicative specification of water fittings achieves the 95 l/p/d target. Each fitting will be

assessed in detail at the next design stage and further savings in water consumption will be made where

feasible.

However, maintaining occupant comfort and effectiveness will not be compromised in pursue of further

savings in water consumption. For example, although showers could be specified with flow rates as low as 3

l/min, many people would find this unacceptable. Sufficient flow is required to provide adequate wetting, to

rinse off soapsuds and to provide sufficient warmth to the bather. The specification of extremely low flow

showers could result in occupiers opting to take more baths which consume more water.

Unit of measure Capacity / flow rate

litres/person/ day

WC (dual flush) Full flush volume (litres) 6 8.76

Part flush volume (litres) 3 8.88

Taps (exc. kitchen and external taps) Flow rate (litres/minute) 3 6.32

Bath Capacity to overflow (litres) 140 15.40

Shower Flow rate (litres/minute) 8 34.96

Kitchen taps Flow rate (litres/minute) 7.5 13.66

Washing machine Litres / kg 6.1 12.81

Dishwasher Litres / rack 0.7 2.52

Calculated Use 103.31

Normalisation factor 0.91

Total Consumption 94.0

Indicative specification of water fittings



5.2.2 Alternative Water Source

For most traditional developments, water is supplied from the mains water system. However, rainwater and

grey-water treatment are gaining more popularity in the UK as sources of non-potable water due to growth in

water demand and reduced resources.

Rainwater Recycling

Islington only receives moderate rainfall, approximately 600mm per year, which can be collected from the

roof-tops of buildings and used for non-potable water uses. Due to the development’s location and compact

form, the amount of roof area available for capturing rainfall is fairly limited.

Therefore, installing a rainwater recycling system for flushing toilets in all of the flats would be inefficient and

economically unviable. However, it is proposed that rainwater will be collected from the roof and used for

irrigation purposes by the residents.

This utilisation of rainwater will not only reduce the quantity of overall mains water used for the development,

but will also have the added benefit of reducing the impact on the sewer network and the probability of

flooding.

Greywater Recycling

Similar to rainwater recycling, greywater recycling can replace need for mains water for non-potable uses.

Greywater from showers and wash hand basins can be used for toilet flushing and irrigation purposes

without much treatment other than simple filtration and basic disinfectant. Greywater from kitchen sinks

require much greater levels of treatment due to often containing traces of grease, fats, meat, fish, oils and

other forms of dirt.

However, there are significant issues with the use of greywater, most significantly the additional operational

and embodied energy and carbon that is required to treat, distribute and store this water for reuse. A study

by the Environmental Agency in 2010 ‘Energy and Carbon Implications of Rainwater Harvesting and

Greywater’ states that the carbon intensities of most greywater applications are over 100% greater than

mains water, an issue that is exasperated by dwellings located in urban areas already served by mains

water.

Therefore, although significant mains water can be saved, greywater recycling has been discounted on the

grounds that they would consume too much energy and emit too much carbon in achieving these savings.



6.0 Waste

6.1 Planning Policy


Policy 5.3: Minimise the generation of waste and maximise reuse or recycling.

Policy 5.17: Suitable waste and recycling storage facilities are required in all new developments.


Priority: Developers should maximise the use of existing resources and materials and minimise waste

generated during the demolition and construction process through the implementation of the waste

hierarchy.


Policy CS 11: The council will encourage sustainable waste management by:

A. Promoting waste reduction, re-use, recycling, composting and resource efficiency over landfill.

B. Requiring developments to provide waste and recycling facilities which fit current and future collection

practices and targets and are accessible to all.

6.1.3 Islington’s Recycling and Refuse Storage Requirements

5.2.1: Provide 200 litres of external waste storage for a single bedroom residential unit, with a further 140

litres for each additional bedroom. At least 50% of total storage capacity must be allocated for recycling.

5.2.2: Where fitted, kitchen units in new properties should incorporate segregated recycling and refuse bins.

They should feature a minimum of three compartments (for recyclables, kitchen waste and refuse).



6.2 Design Response

The design team appreciates the benefits of controlling waste both financially and environmentally and is

committed to minimising waste throughout all phases of the development.

6.2.1 Demolition and Construction Waste

The construction and demolition industry annually produces three times the amount of waste generated by

all UK households combined. In 2012, London produced approximately 15 million tonnes of waste, of which

construction, excavation and demolition waste (CE&D) accounted for 7.2m tonnes (48% of all waste).

A Site Waste Management Plan (SWMP) will be implemented for the for the demolition and construction

phases in order to directly inform the waste management audit process. The SWMP encourages the review

of current waste reduction and recovery practice levels, highlighting areas where Good and Best Practice in

terms of waste minimisation and management can be achieved. The SWMP also facilitates the identification

and implementation of waste minimisation, reducing the quantities of construction waste sent to landfill and

reuse and recycling opportunities during on-site operations.

The SWMP will include procedures and commitments for waste minimisation and diversion from landfill, as

well as setting target benchmarks for resource efficiency in accordance with guidance from DEFRA, BRE,

Envirowise and WRAP.

The contractor will carry out a Type 3 Demolitions Survey prior to the demolition of the existing building, and

works will be carried out in accordance with BS: 6187.

Materials from the demolition which can be salvaged and re-used will be done so where practical, i.e. re-

using the bricks as a sub-base for the hardstanding areas.

The team is committed to reducing the quantity of non-hazardous construction waste. According to data

collected from hundreds of real life projects by SMARTWaste, 18.1m3/100m2 of construction waste is the

industry average for residential buildings; the proposed scheme will aim to generate less than this

benchmark. The generation figures will be continually reviewed on-site with the aim to pursue opportunities

to further reduce generation figures where possible.

The development is also committed to diverting at least 85% of non-hazardous construction waste from

landfill.



6.2.2 Operational Waste

In London, household waste collected by or on behalf of local authorities accounts for approximately 20% of

all waste produced.

Similar to the demolition and construction phase, waste management during the operation of the

development will follow the waste hierarchy; prevention, re-use, recycle/compost, energy recovery, and then

disposal which is the least attractive waste management option.

Waste hierarchy

It is proposed that the external bin store will be located on the ground floor between the 2 cores, and

accessed from Bryett Road. 2no. 1100 L bins and 2no. 360 L bins will be provided, of which 50% will be

dedicated to recyclable waste. This meets the storage requirements of Islington Council and comfortably

exceeds the minimum volume recommended by BS 5906.

In addition, each flat will be allocated with separate internal bins for recyclable and non-recyclable waste.

The internal bins will have a minimum total capacity of 30 litres and each bin will have a capacity of at least 7

litres.

External waste storage capacity



7.0 Materials and Construction

7.1 Planning Policy


Policy 5.3: Demonstrate that sustainable design standards are integral to the proposal, including its

construction and operation, and ensure that they are considered at the beginning of the design process.

Secure sustainable procurement of materials, using local supplies where feasible.

Policy 7.14: Promote sustainable design and construction to reduce emissions from the demolition and

construction of buildings following the best practice guidance in the GLA and London Councils’ ‘The control

of dust and emissions from construction and demolition’.


Priority: At least three of the key elements of the building envelope are to achieve a rating of A+ to D in the

BRE’s The Green Guide of specification.

Priority: At least 50% of timber and timber products should be sourced from accredited Forest Stewardship

Council (FSC) or Programme for the Endorsement of forestry Certification (PEFC) source.

Priority: Provide sufficient internal space for the storage of recyclable and compostable materials and waste.

Priority: Meet borough requirements for the size and location of recycling, composting and refuse storage

and its removal.


Policy CS 10: Requiring all development to minimise the environmental impact of materials, for example

through use of sustainably-sourced, low impact and recycled materials, and to take all possible measures to

minimise the impact of construction on the environment, including by minimising construction waste.


Policy DM7.4: As a minimum, 10% of the total value of materials used should derive from recycled and

reused content in the products and materials selected. All developments are required to comply with

Islington's Code of Practice for Construction Sites.



7.2 Design Response

7.2.1 Materials

Building materials can have a very large impact on the environment; their manufacture, use and disposal

involves the use of significant levels of energy and natural resources, creates pollution and destroys natural

habitat. Recent statistics show that 10% of UK carbon dioxide emissions were related to the production and

transportation of building materials.

The design team acknowledges the importance of taking a more environmentally responsible approach to

the selection and specification of building materials that are environmentally benign in manufacture, use and

disposal.

The majority of the key building elements (roof, external walls, internal walls, upper and ground floors and

windows) of the development will be selected to achieve a Green Guide rating of between A+ and D; this will

be assessed in more detail at the detailed design stage.

In addition, building and finishing elements will be responsibly sourced from certified suppliers where

possible (i.e. all timber FSC certified, BES6001 certificate, EMAS certificate, ISO14001 certificate etc.)

The design team and contractor will endeavour to source materials locally in order to avoid materials with

high embodied energy.

The design team will be investigating the feasibility of procuring key internal finishes and fittings (i.e. paints,

suspended ceiling tiles, floor coverings) with low VOC content to improve the internal air quality of the flats.

7.2.2 Construction

The team will look to ideally use contractors that have a formal strategy which clearly sets out their commitment to be more sustainable and have a proven track record of constructing buildings considerately. There is a commitment to go significantly beyond best practice under a nationally or locally recognised certification scheme such as the Considerate Constructors Scheme, by achieving a minimum score of 35 (out of 50). In addition, the following procedures will be implemented during the construction of the development:

Monitor, report and set targets for either CO2 production, energy use or water consumption from site activities

Adopt best practice policies in respect of air (dust) pollution arising from site activities

Adopt best practice policies in respect of water (ground and surface) pollution occurring on the site

80% of site timber to be reclaimed, re-used or responsibly sourced

Comply with Islington's Code of Practice for Construction Sites

Pneumatic percussive tools and other machinery to be fitted with silencers.

Working hours restricted to 8am to 5pm Mondays to Fridays.



8.0 Adaptation to Climate Change

8.1 Planning Policy


Policy 5.3: Avoid internal overheating and contributing to the urban heat island effect; avoid impacts from

natural hazards (including flooding).

Policy 5.9: Reduce potential overheating and reliance on air conditioning systems in accordance with the

cooling hierarchy.

Policy 5.11: Include green roofs and walls where feasible, to deliver in the adaptation to climate change (i.e.

aiding cooling), mitigation of climate change (i.e. aiding energy efficiency), sustainable urban drainage and

improvements to appearance and resilience of the building.

Policy 5.13: Utilise sustainable urban drainage systems (SUDS) unless there are practical reasons for not

doing so, and aim to achieve greenfield run-off rates and ensure that surface water run-off is managed as

close to its source as possible in line with the drainage hierarchy.


Best Practice: Consider any long term potential for extreme weather events to affect a building’s foundations

and to ensure they are robust.

Priority: Maximise all opportunities to achieve greenfield runoff rates in their developments.

Priority: Design Sustainable Drainage Systems (SuDS) into their schemes that incorporate attenuation for

surface water runoff as well as habitat, water quality and amenity benefits.

Priority: Design developments to be flexible and capable of being adapted to and mitigating the potential

increase in flood risk as a result of climate change.


Policy CS 10: Requiring all development to demonstrate that it is designed to be adapted to climate change,

particularly through design which minimises overheating and incorporates sustainable drainage systems

(SUDS).

8.1.3 Islington’s Development Management Policies (June 2013)

Policy DM6.5: Developments should maximise the provision of green roofs and the greening of vertical surfaces as far as reasonably possible, and where this can be achieved in a sustainable manner, without excessive water demand. The design and operation of green roofs must maximise benefits for biodiversity, sustainable drainage and cooling.



Policy DM6.6: Major developments creating new floorspace and major Changes of Use likely to result in an

intensification of water use are required to include details to demonstrate that Sustainable Urban Drainage

Systems (SUDS) have been incorporated.

Reduce flows to a ‘greenfield rate’ of run-off (8 litres/second/hectare for Islington), where feasible.

The volume of run-off that must be stored on site should be calculated based on the nationally

agreed return period value of a 1 in 100 years flood plus a 30% allowance for climate change for the

worst storm duration. Where it is demonstrated that a greenfield run-off rate is not feasible, runoff

rates should be minimised as far as possible. The maximum permitted runoff rate will be 50

litres/second/hectare.

Follow the SUDS ‘management train', maximise source control, provide the relevant number of

‘treatment stages’ and identify how the ‘first flush’ will be dealt with.

Maximise amenity and biodiversity benefits, while ensuring flow and volumes of run-off entering

open space are predictable and water at the surface is clean and safe. Maximise areas of

landscaping and/or other permeable surfaces to support this.

Policy DM7.5: Applications for major developments are required to include details of internal temperature

modelling under projected increased future summer temperatures to demonstrate that the risk of overheating

has been addressed.


6.0.16: Major developments located in LFRZs will be required to submit a Flood Risk Assessment (FRA) as

part of the planning application

6.0.20: Maximise incorporation of passive design measures to control heat gain and to deliver passive

cooling, following the sequential cooling hierarchy: passive design, passive/natural cooling, mixed mode

cooling, full building mechanical ventilation/cooling system.

6.0.24: All major developments should demonstrate effective adaptation to projected future summer

temperatures via modelling of the building under future temperature scenarios, taking into account climate

change projections.



8.2 Design Response

People everywhere will be affected by climate change and the UK will not be immune. Even if global actions

prove successful in reducing the impacts of climate change, warmer and drier summers, and wetter winters

are likely as more extreme climatic events. There is a major need for buildings to consider these future

changes in the designs of today.

The UK’s climate has already started to change, and these changes are projected to accelerate in the

coming decades. Weather patterns will change all over the UK, but regions will vary in different ways with

certain areas likely to be particularly vulnerable to the impacts of present and future climate change. The

latest UK Climate Projections 2009 (UKCP09) suggests that London could:

• by the 2020s, see an increase in summer mean temperature of 1.5°C, a decrease in mean summer

rainfall of 6% and an increase in mean winter rainfall of 6%, all from a 1961–1990 baseline.

• by the 2050s, see an increase in mean summer temperature of 2.7°C, an increase in mean winter

rainfall of 15% and a decrease in mean summer rainfall of 18%.

• by the 2080s, see an increase in mean summer temperature of 3.9°C, an increase of 20% in mean

winter rainfall and a decrease in mean summer rainfall of 22%.

Low Emissions Scenario High Emissions Scenario

Change in annual mean temperature (◦C)

Low Emissions Scenario High Emissions Scenario

Change in summer mean precipitation (%)

http://ukclimateprojections.defra.gov.uk/images/stories/Preprepared_maps/Graphs/LON_AnnTmean_Lo_All_10_Gr.png

http://ukclimateprojections.defra.gov.uk/images/stories/Preprepared_maps/Graphs/LON_AnnTmean_Hi_All_10_Gr.png

http://ukclimateprojections.defra.gov.uk/images/stories/Preprepared_maps/Graphs/LON_SumPmean_Lo_All_10_Gr.png

http://ukclimateprojections.defra.gov.uk/images/stories/Preprepared_maps/Graphs/LON_SumPmean_Hi_All_10_Gr.png



The sustainable design and layout of the development has appreciated these issues relating to climate

change and several features have been included to combat and mitigate its impact on the successful

operation of Mary Seacole. Key features include:

8.2.1 Overheating

The compact form is thermally efficient to create a low surface area to volume ratio which minimises

the unwanted heat gains (and losses) through the building fabric.

The quantity and positioning of all the glazing has been carefully considered to not only provide

sufficient daylight, but also to maximise passive solar heating in winter whilst maintaining the risk of

overheating to a minimal level in summer.

The majority of balconies are set back from the external façade; this provides protection from the

high angle summer sun whilst still allowing solar ingress in the winter.

The external planters protrude out from the external façade, which cleverly provides solar shading

for the apartments below.

The glazing along the south-east and south-west facades are set back into the thick external walls to

create deep window reveals which provides additional protection during summer.

The building fabric of the proposed development will achieve high levels of thermal performance

beyond the minimum Building Regulations requirements.

Each flat to have a MVHR unit provide fresh air and remove pollutants, in a controlled manner. The

MVHR units will be supplied with a summer by-pass control to ensure that exhaust air is not passed

over the heat exchanger in summer. They will also have a ‘summertime boost’ function to provide

additional fresh air when required.

All flats are dual aspect with openable windows to allow for cross ventilation to increase ventilation

rates when required.

Incorporation of a green roof and landscaped areas to reduce the urban heat island effect (as well as

further insulating the building and reducing energy demand to provide heating in winter). In addition,

the greenery will naturally cause the local air to be cool and fresh and will also sequester CO2 from

the air helping to reduce the effects of climate change.

SAP calculations confirm the overheating will not occur in summer. However, additional overheating

analysis has been undertaken using dynamic simulation modelling software and climate change

weather files to ensure that adequate internal levels of comfort can be maintained with future

predicted weather scenarios. For further details, please refer to Appendix 3.



8.2.2 Sustainable Drainage

A reduction in both peak flow rates and total runoff volume through the installation of SUDs (i.e.

green roof, permeable paving, below ground attenuation tank). This will lessen the impact on the

drainage system and minimise flash floods as a consequence of intense rainfall events.

A concept drainage design has been developed to contain storms up to the 1 in 100 year design

event, plus an additional 30% to take into account possible impacts of climate change.

For further details, please refer to MLM’s SUDS statement - Appendix 4.



9.0 Environmental Assessment

9.1 Planning Policy


Policy CS 10: All development to achieve the highest feasible level of a nationally recognised sustainable

building standard.


Policy DM7.4: Major new-build residential developments are required to achieve the following standards

under the Code for Sustainable Homes, or equivalent:

(i) up to 2016 - Level 4 (ii) 2016 onwards - Level 5 7.2.1: Schemes assessed under the Code for Sustainable Homes should achieve at least 50% of credits on Environmental Impact of Materials (Mat 1) and Responsible Sourcing (Mat 2); at least 1 credit on Responsible Sourcing (Mat 3); and all credits on Construction Site Waste Management (Was 2).

9.1.3 Islington’s Response to the Ministerial Statement of 25th March (May 2015)

Although not required, the use of Code for Sustainable Homes (whilst still available), BREEAM, LEED and

Home Quality Mark (once released) standards will be accepted and strongly encouraged for assessment

by LBI.


3.0.5: Achieve the required level of the CSH/BREEAM via a pre-assessment as part of any application and subsequently via certification.



9.2 Design Response

The design team understands and promotes the inherent value of fundamental good design in sustainability terms, as well as the value of achieving levels of excellence gained through assessment from independent bodies. Although no longer required (since the Ministerial Statement on 25th March), a CfSH pre-assessment has been undertaken for the proposed development; a score of 69.48% is currently achieved equating to a Code Level 4 rating. This score is only indicative in line with the current scheme design and will need to be continually assessed throughout the programme. Please refer to the CfSH pre-assessment report (Appendix 5) for further details.

ISSUE

Maximum Targeted Potential Unlikely

Credits % Credits % Credits % Credits %

Energy & CO2

Emissions 31 36.4 20.3 23.8 1.7 2.0 9 10.6

Water 6 9.0 4 6.0 1 1.5 1 1.5

Materials 24 7.2 16 4.8 5 1.5 3 0.9

Surface Water

Run-Off 4 2.2 4 2.2 0 0.0 0 0.0

Waste 8 6.4 8 6.4 0 0.0 0 0.0

Pollution 4 2.8 4 2.8 0 0.0 0 0.0

Health & Well

Being 12 14.0 10 11.7 2 2.3 0 0.0

Management 9 10.0 7 7.8 2 2.2 0 0.0

Ecology 9 12.0 3 4.0 2 2.7 4 5.3

TOTAL 107 100.00 76.3 69.48 13.7 12.22 17 18.30

Code Pre-assessment Summary table



10.0 Landscape and Nature

10.1 Planning Policy


Policy 5.3: Promote and protect biodiversity and green infrastructure. Policy 5.10: Integrate green infrastructure from the beginning of the design process to contribute to urban greening, Policy 5.11: Include green roofs and walls where feasible, to deliver in the enhancement of biodiversity.


Best Practice: The design of developments should prioritise landscape planting that is drought resistant and

has a low water demand for supplementary watering.

Priority: Any loss of a tree/s resulting from development should be replaced with an appropriate tree or group

of trees for the location, with the aim of providing the same canopy cover as that provided by the original

tree/s.


Policy CS 10: Protect existing site ecology and make the fullest contribution to enhancing biodiversity, both

through on-site measures and by contribution to local biodiversity improvements.

10.1.3 Islington’s Development Management Policies (June 2013)

Policy DM6.5: Protect, contribute to and enhance the landscape, biodiversity value and growing conditions of the development site and surrounding area.

New-build developments, and all major applications, should use all available roof space for green roofs, subject to other planning considerations.

The design and operation of green roofs must maximise benefits for biodiversity, sustainable drainage and cooling. Green roofs are required to have a varied substrate depth of average 80-150mm, unless it can be demonstrated that this is not reasonably possible.


5.0.3: Ensure existing biodiversity is protected and maximise biodiversity enhancement through:

Ecological landscaping and micro habitat creation

Green roofs and greening of walls

Wider biodiversity considerations

5.0.16: Incorporate artificial nest boxes/bricks within developments to provide nesting and roosting opportunities for birds.



10.2 Design Response

Understanding the site is fundamental to any development but particularly crucial to developments which

aspire to work in tandem with nature and the environment. The Mary Seacole site aims to maintain, protect

and enhance the biodiversity and ecological value of the site as much as possible.

The existing site is currently lacking in terms of biodiversity and ecological value; there is an Acer tree at the

north of the site fronting onto Tollington Way, and a Silver Birch tree and a Sycamore tree in the southern

part of the site in the play area. In a wider context, there are no Sites of Special Scientific Interest (SSSI),

environmentally sensitive areas, national parks or other protected areas within 250m of the site.

In order to maximise usage of the site, the proposal includes for the removal of the Sycamore tree. However,

new trees are to be planted within the site boundary to ensure there will be an increase in overall tree

coverage. A green roof and external planters (at each storey facing onto the courtyard) are also proposed. In

addition to improving the site’s ecology and biodiversity, they will have the added benefit of:

providing visual interest

reducing local temperatures (urban heat island effect)

improving air quality

reducing surface water run-off

The installation of artificial nest boxes/bricks to provide nesting and roosting opportunities for birds will be

provided and suitable locations will be identified at the next design stage, i.e. on trees, within the building

fabric etc.

The types of plant species for the green roof and external planters will be carefully selected at the next

design stage. Native species which rely solely on precipitation will be chosen where appropriate.

As a minimum, the design team is committed to achieving a ‘neutral’ change in ecological value (i.e. between

-3 and +3 species), with an aspiration to achieve an enhancement of between 3 and 9 species.

The contractor will ensure that all necessary training will be implemented to ensure that site ecology is

protected and damage avoided during the construction process.



11.0 Management

11.1 Planning Policy


Policy 5.3: Demonstrate that sustainable design standards are integral to the proposal, including its construction and operation.


Best Practice: Developers are encouraged to incorporate monitoring equipment, and systems where

appropriate to enable occupiers to monitor and reduce their energy use.


Policy CS 10: Requiring all development to be designed and managed to promote sustainability through their

ongoing operation, for example through measures which raise awareness about environmental issues and

support sustainable lifestyles, and to be adaptable to changing needs and circumstances over their lifetime.


Policy DM7.1: Major developments are required to include a Green Performance Plan (GPP) detailing

measurable outputs for the occupied building, particularly for energy consumption, CO2 emissions and water

use, and should set out arrangements for monitoring the progress of the plan over the first years of

occupancy.

Allow council officers access to the development and submitting information to the council when requested.


8.0.10: Provision of building user guides for operators/owners/users of any new building



11.2 Design Response

11.2.1 Building User Guide

Ensuring that building users understand how the building works is crucial to limiting energy consumption, as

is making sure that the building is simple to operate. Building user guides will be produced as they are

deemed by the design team to be a vital document if a sustainable development is to be achieved, not only

in design, but also in operation.

The guide will include a wide range of information including operational issues and issues relating to the site

and surroundings:

Environmental /design features

Energy

Water Use

Recycling & Waste

Sustainable Urban Drainage Systems (SUDS)

Public Transport

Local amenities

Emergency Information

Links, References & Further Information

The guide will be relevant to all building users that will occupy the buildings irrespective of technical ability.

For improved usability the guide could be available in alternative formats (i.e. audio cassette / CD) to make

the information more accessible.

11.2.2 Green Performance Plan

There is often a large gap between the estimated energy consumption of a building and the actual amount of

energy consumed in operation; this can due to various reasons such as systems not being correctly installed

or commissioned, technologies not performing as well as expected, unexpected occupation behaviour.

A Green Performance Plan (GPP) is to be produced for Mary Seacole in order to monitor the performance of

the building in use against key sustainability indicators. It will cover the first two years of occupation and will

set out the following:

measurable performance targets and indicators.

arrangements for management and monitoring of the plan over the first two years of occupation.

arrangements for addressing performance in the event that the agreed objectives are not met at the

end of the two year monitoring period.

For further details, please refer to Appendix 6.



12.0 Appendix

Appendix 1 – Future Proofing Strategy

Appendix 2 – Preliminary SAP Analysis

Block Compliance After Lean Measures

Block Compliance After Lean, Clean & Green Measures

Typical Ground Floor Unit (Flat 8)

Mid-Floor Unit (Flat 4)

Top Floor Unit (Flat 15)

Appendix 3 – Overheating Analysis

Appendix 4 – SUDS Statement

Appendix 5 – Code for Sustainable Homes Pre-Assessment Report

Appendix 6 – Draft Green Performance Plan


Mary Seacole – Sustainable Design and Construction Statement

Appendix 1 – Future Proofing Strategy

any shop drawings or work whatsoever either on their own behalf or that of

sub-contractors.

Report any discrepancies to the Contract Administrator at once.

This drawing is to be read with all relevant Architect's and Engineer's

drawings and other relevant information.

© Ingleton Wood LLP

LEGEND: DO NOT SCALE

Project:

Drawing Title:

Client:

Drawn:Checked:

Date:Scale: Paper Size:

Revision:Stage:Dwg No.:Job No.:

Chk:Drw:Description:Date:Revision:

- 08/07/2015 Preliminary Issue

-

RP LMT

Mary Seacole

London

N7 6QX

Indicative Future Proofing Strategy

Ground Floor

Islington Council

RP LMT 08.07.15 1:00 A3

84873 401 Planning -

www.ingletonwood.co.uk

Vision, form and function

BillericayCambridgeColchesterLondonNorwich

London1 Alie Street

London E1 8DE

T: 020 7680 4400

360l Wheeled

bin genaral waste

(wheelchair users)

11

00

l e

uro

bin

re

cyclin

g

360l Wheeled

bin recycling

(wheelchair users)

11

00

l e

uro

bin

ge

ne

ra

l w

aste

Flat 1 Type 1GIA: 50.24m2




F

F

F

F

HIU

HIU

HIU

HIU

Indicative location of heat

exchanger to connect to

district heat network (buried

in accessible chamber)

Supply heating pipe

Return heating pipe

Supply heating pipe

Return heating pipe

500

1500

any shop drawings or work whatsoever either on their own behalf or that of

sub-contractors.

Report any discrepancies to the Contract Administrator at once.

This drawing is to be read with all relevant Architect's and Engineer's

drawings and other relevant information.

© Ingleton Wood LLP

LEGEND: DO NOT SCALE

Project:

Drawing Title:

Client:

Drawn:Checked:

Date:Scale: Paper Size:

Revision:Stage:Dwg No.:Job No.:

Chk:Drw:Description:Date:Revision:

- 08/07/2015 Preliminary Issue

-

RP LMT

Mary Seacole

London

N7 6QX

Indicative Future Proofing Strategy

Roof Level

Islington Council

RP LMT 08.07.15 1:00 A3

84873 000 Planning -

www.ingletonwood.co.uk

Vision, form and function

BillericayCambridgeColchesterLondonNorwich

London1 Alie Street

London E1 8DE

T: 020 7680 4400

Supply heating pipe

Return heating pipe

Riser

Riser

Lift shaft Lift shaft

Skylight Skylight

Skylight

Ladder



Appendix 2 – Preliminary SAP Analysis

Block Compliance After Lean Measures

Block Compliance After Lean, Clean & Green Measures

Typical Ground Floor Unit (Flat 8)

Mid-Floor Unit (Flat 4)

Top Floor Unit (Flat 15)



SAP Analysis - Block Compliance After Lean Measures

Sample Report Ltd1 Sample StreetSampletown

Block Compliance Page 1 of 1

Property Reference: 002935 Issued on Date: 07.Jul.2015Survey Reference: Flat 8a Prop Type Ref: Flat 8Property: Tollington Way, London, Greater London, N7 6QX

Surveyor: admin Admin, Tel: 4, Fax: [email protected] Surveyor ID: AdminAddress:Client: Islington Council

Software Version: Elmhurst Energy Systems SAP2012 Calculator (Design System) version 3.01r13SAP version: SAP 2012, Regs Region: England (Part L1A 2013), Calculation Type: New Dwelling As Designed

Block Compliance Report - DER

Block Reference: 000043 Block Name: Lean - 0.08Y & HWS

Property-Survey

Reference

Multiplier

(M)

Floor Area

(F)

DER

(D)

TER

(T)F x M D x F x M T x F x M

002935-Flat 8a 1 55.6 17.13 18.99 55.60 952.43 1,056.12

002936-Flat 9a 1 85.9 14.38 16.33 85.90 1,235.24 1,403.06

002937-Flat 1a 1 49.7 18.34 20.14 49.70 911.50 1,000.96

002938-Flat 2a 1 97.5 14.46 16.52 97.50 1,409.85 1,610.62

002939-Flat 10a 2 72.4 14.24 16.26 144.80 2,061.95 2,353.85

002940-Flat 11a 2 72.4 13.48 15.60 144.80 1,951.90 2,259.02

002941-Flat 3a 1 49.7 16.32 18.50 49.70 811.10 919.40

002942-Flat 4a 2 78.6 14.23 16.37 157.20 2,236.96 2,573.08

002943-Flat 5a 1 89.6 15.57 17.70 89.60 1,395.07 1,585.75

002944-Flat 14a 1 72.1 17.76 19.36 72.10 1,280.50 1,395.51

002945-Flat 15a 1 72.1 16.90 18.62 72.10 1,218.49 1,342.85

002946-Flat 7a 1 66.5 19.13 19.71 66.50 1,272.15 1,310.68

Totals: 15 862.1 191.94 214.10 1,085.50 16,737.14 18,810.88

Average DER= 15.42

Average TER= 17.33PASS

Block Compliance Report - DFEE

Block Reference: 000043 Block Name: Lean - 0.08Y & HWS

Property-Survey

Reference

Multiplier

(M)

Floor Area

(F)

DFEE

(D)

TFEE


002935-Flat 8a 1 55.6 44.88 47.62 55.60 2,495.36 2,647.83

002936-Flat 9a 1 85.9 41.50 45.36 85.90 3,564.49 3,896.51

002937-Flat 1a 1 49.7 48.20 49.97 49.70 2,395.49 2,483.74

002938-Flat 2a 1 97.5 44.98 49.36 97.50 4,385.30 4,812.83

002939-Flat 10a 2 72.4 38.10 40.36 144.80 5,516.19 5,843.67

002940-Flat 11a 2 72.4 33.94 36.98 144.80 4,914.64 5,354.33

002941-Flat 3a 1 49.7 38.28 41.48 49.70 1,902.41 2,061.74

002942-Flat 4a 2 78.6 39.97 43.04 157.20 6,283.42 6,766.17

002943-Flat 5a 1 89.6 49.83 53.27 89.60 4,464.79 4,773.13

002944-Flat 14a 1 72.1 56.79 56.13 72.10 4,094.39 4,047.22

002945-Flat 15a 1 72.1 52.55 52.39 72.10 3,788.71 3,777.63

002946-Flat 7a 1 66.5 61.99 56.50 66.50 4,122.42 3,757.29

Totals: 15 862.1 550.99 572.48 1,085.50 47,927.62 50,222.09

Average DFEE= 44.15

Average TFEE= 46.27PASS

© Elmhurst Energy Systems Limited Registered Office Unit 16, St Johns Business Park, Lutterworth, Leicestershire LE17 4HB



SAP Analysis - Block Compliance After Lean, Clean & Green Measures


Block Compliance Page 1 of 1




Block Compliance Report - DER

Block Reference: 000044 Block Name: Green - 0.08Y & HWS

Property-Survey

Reference

Multiplier

(M)

Floor Area

(F)

DER

(D)

TER


002947-Flat 8a 1 55.6 11.37 18.99 55.60 632.17 1,056.12

002948-Flat 9a 1 85.9 10.65 16.33 85.90 914.84 1,403.06

002949-Flat 1a 1 49.7 11.89 20.14 49.70 590.93 1,000.96

002950-Flat 2a 1 97.5 11.17 16.52 97.50 1,089.08 1,610.62

002951-Flat 10a 2 72.4 9.81 16.26 144.80 1,420.49 2,353.85

002952-Flat 11a 2 72.4 9.05 15.60 144.80 1,310.44 2,259.02

002953-Flat 3a 1 49.7 9.87 18.50 49.70 490.54 919.40

002954-Flat 4a 2 78.6 10.15 16.37 157.20 1,595.58 2,573.08

002955-Flat 5a 1 89.6 12.00 17.70 89.60 1,075.20 1,585.75

002956-Flat 14a 1 72.1 13.32 19.36 72.10 960.37 1,395.51

002957-Flat 15a 1 72.1 12.45 18.62 72.10 897.65 1,342.85

002958-Flat 7a 1 66.5 14.31 19.71 66.50 951.62 1,310.68

Totals: 15 862.1 136.04 214.10 1,085.50 11,928.89 18,810.88

Average DER= 10.99

Average TER= 17.33PASS

Block Compliance Report - DFEE

Block Reference: 000044 Block Name: Green - 0.08Y & HWS

Property-Survey

Reference

Multiplier

(M)

Floor Area

(F)

DFEE

(D)

TFEE


002947-Flat 8a 1 55.6 44.88 47.62 55.60 2,495.36 2,647.83

002948-Flat 9a 1 85.9 41.50 45.36 85.90 3,564.49 3,896.51

002949-Flat 1a 1 49.7 48.20 49.97 49.70 2,395.49 2,483.74

002950-Flat 2a 1 97.5 44.98 49.36 97.50 4,385.30 4,812.83

002951-Flat 10a 2 72.4 38.10 40.36 144.80 5,516.19 5,843.67

002952-Flat 11a 2 72.4 33.94 36.98 144.80 4,914.64 5,354.33

002953-Flat 3a 1 49.7 38.28 41.48 49.70 1,902.41 2,061.74

002954-Flat 4a 2 78.6 39.97 43.04 157.20 6,283.42 6,766.17

002955-Flat 5a 1 89.6 49.83 53.27 89.60 4,464.79 4,773.13

002956-Flat 14a 1 72.1 56.79 56.13 72.10 4,094.39 4,047.22

002957-Flat 15a 1 72.1 52.55 52.39 72.10 3,788.71 3,777.63

002958-Flat 7a 1 66.5 61.99 56.50 66.50 4,122.42 3,757.29

Totals: 15 862.1 550.99 572.48 1,085.50 47,927.62 50,222.09

Average DFEE= 44.15

Average TFEE= 46.27PASS




SAP Analysis - Typical Ground Floor Unit (Flat 8)


Summary Information


SAP Rating: 84 B

Environmental:93 A

CO2 Emissions (t/year): 0.49

General Requirements Compliance: Pass

DER: 11.37 Pass

DFEE:44.88 Pass

TER: 18.99

TFEE:47.62

Percentage DER<TER: 40.14 %

Percentage DFEE<TFEE: 5.76 %

CfSH Results Version: November 2010 - June 2014 Addendum ENE1 Credits: 4.6 ENE2 Credits: 4.0 ENE7 Credits: 1 CfSH Level: 4



SUMMARY FOR INPUT DATA FOR New Build (As Designed) Page 1 of 4

Orientation North West

1.0 Property Type Flat, End-Terrace

2.0 Number of Storeys 1

3.0 Date Built 2016

3.0 Property Age Band

4.0 Sheltered Sides 2

5.0 Sunlight/Shade Average or unknown

6.0 Measurements

Heat Loss Perimeter Internal Floor Area Average Storey Height

Ground Floor: 32.40 55.60 2.60

7.0 Living Area 25.90

8.0 Thermal Mass Parameter Simple calculation - Medium

9.0 External Walls

Description Construction U-Value Kappa Gross Area Nett Area

External Wall 1 Other 0.15 49.92 33.99

Sheltered Wall 2 Other 0.15 34.32 32.32

10.1 Party Ceilings

Description Construction Kappa Area

Party Ceilings 1 Precast concrete planks floor, screed, carpeted 55.60

11.0 HeatLoss Floors

Description Construction U-Value Kappa Area

Heat Loss Floor 1 Slab on ground, screed over insulation 0.11 55.60

12.0 Opening TypesDescription Data Source Type Glazing Glazing Gap Argon Filled Solar Trans Frame Type Frame Factor U value

door Manufacturer Solid Door 1.00

N glazing Manufacturer WindowDouble Low-E Soft

0.050.70 0.70 1.20

S glazing Manufacturer WindowDouble Low-E Soft

0.050.70 0.70 1.20

13.0 OpeningsName Opening Type Location Orientation Curtain Type

Overhang

Ratio

Wide

OverhangWidth Height Count Area

Curtain

Closed

D1 Solid Door [2] Sheltered Wall 2 North West 2.00

W1 Window [1] External Wall 1 South West None 0.00 10.78


W3 Window [1] External Wall 1 North East None 0.00 3.75

14.0 Conservatory None

15.0 Draught Proofing 100

16.0 Draught Lobby No

17.0 Thermal Bridging User Input

17.1 List of Bridges



Source Type Bridge Type Length Psi Imported

18.0 Pressure Testing Yes

Designed q50 3.00

Property Tested ?

As Built q50

Same As Designed ?

19.0 Mechanical Ventilation

Mechanical Ventilation System

Present

Yes

Approved Installation Yes

Windows open in hot weather Windows fully open

Cross ventilation possible Yes

Night Ventilation No

Air change rate 6.00

Mechanical Ventilation data Type Data Sheet

Type Balanced mechanical ventilation with heat recovery

MV Reference Number

Configuration

MVHR Duct Insulated Yes

Manufacturer SFP 0.41

Duct Type Rigid

MVHR Efficiency 90.00

Wet Rooms 1

Brand, Model .

20.0 Fans, Open Fireplaces, Flues

MHS SHS Other Total

Number of Chimneys 0 0 0

Number of open flues 0 0 0

Number of intermittent fans 0

Number of passive vents 0

Number of flueless gas fires 0

21.0 Cooling System No

22.0 Lighting

Internal

Total number of light fittings 10

Total number of L.E.L. fittings 10

Percentage of L.E.L. fittings 100.00

External

External lights fitted Yes

Light and motion sensors Yes

23.0 Electricity Tariff Standard

24.0 Heating Systems

Main Heating 1 Manufacturer

Description

Percentage of Heat 100 %

Main Heating 2 None

Description

Percentage of Heat %

Community Heating

Secondary Heating None

Water Heating Main Heating 1

Flue Gas Heat Recovery System Yes

Waste Water Heat Recovery

Instantaneous System 1

No



No

Waste Water Heat Recovery Storage

System

No

Solar Panel No

25.0 Main Heating 1

Database Ref. No.

Fuel Type

Main Heating BGB

TestMethod

SAP Code 102

Efficiency ( Sedbuk 2009 ) % 90.0

Efficiency ( Sedbuk 2009 ) %

In Winter

In Summer

Model Name .

Manufacturer .



Controls CBI Time and temperature zone control

PCDF Controls 0

Delayed Start Stat Yes

Sap Code 2110

Burner Control On/Off

Boiler Compensator

HETAS approved System

Oil Pump Inside

FI Case

FI Water

Flue Type None or Unknown

Smoke Control Area

Fan Assisted Flue Yes

Is MHS Pumped Pump in heated space

Heat Emitter Radiators

Underfloor Heating

Flow Temperature

Electric CPSU Temperature

Combi boiler type

Combi keep hot type

Combi store type

27.0 Community Heating

Space Community Heating

PCDF Index

Distribution Loss

Distribution Loss Value

Controls

SAP Code

Water Community Heating

PCDF Index

Distribution Loss


Charging Linked To Heat Use

28.0 Secondary Heating

Description

SHS efficiency %

SAP Code

HETAS Approved System

Smoke Control Area

Test Method

Manufacturer

Model Name

29.0 Water Heating HWP From main heating 1

Water use <= 125 litres/person/day Yes

SAP Code 901

Immersion Heater

Summer Immersion

Suplementary Immersion

Immersion Only Heating Hot Water

29.1 Flue Gas Heat Recovery System

Database ID 60027

Brand Model Muelink & Grol, ECOFLO

Details Year: 2011 + current

Applicable Fuel: 1

Boiler Types: RCSK

Heat Store Volume: 0

PV module: 0

29.2 Waste Water Heat Recovery

System

Total rooms with shower and/or bath

30.0 Hot Water Cylinder Hot Water Cylinder

Cylinder Stat Yes

Cylinder In Heated Space Yes

Independent Time Control Yes

Insulation Type Foam

Insulation Thickness

Cylinder Volume 170.00

Loss (kwh/day)

Pipes insulation Fully insulated primary pipework

In Airing Cupboard

31.0 Solar Panel

Solar Panel Area

Area Type

Panel Type

n0, a1, a2, A/G ratio

Orientation



Elevation

Overshading

Solar Storage Volume

Pump electrically powered

Combined Cylinder

32.0 Thermal Store None

Thermal Store Pipework

33.0 Photovoltaic Unit One Dwelling

Apportioned KWh/Year

PV Cells kW Peak Orientation Elevation Overshading

0.75 South West 30°None Or

Little

34.0 Wind Turbines

Terrain Type Urban

Wind Turbines

Count

Apportioned Kwh/year

Rotor Diameter

Hub Height

35.0 Small-scale Hydro

Electricity Generated

Description

Apportioned kWh/Year

Recommendations

None

Further measures to achieve even higher

standards

None




SAP Analysis - Mid-Floor Unit (Flat 4)


Summary Information


SAP Rating: 85 B

Environmental:92 A


General Requirements Compliance: Pass

DER: 10.15 Pass

DFEE:39.97 Pass

TER: 16.37

TFEE:43.04


Percentage DFEE<TFEE: 7.13 %





Orientation South West

1.0 Property Type Flat, Mid-Terrace


3.0 Date Built 2016




6.0 Measurements


Ground Floor: 35.90 78.60 2.60



9.0 External Walls




9.1 Party walls


Party Wall 1 Other 18.98

10.1 Party Ceilings


Party Ceilings 1 Precast concrete planks floor, screed, carpeted 78.60

11.1 Party Floors


Party Floor 1 Precast concrete planks floor, screed, carpeted 78.60




0.050.70 0.70 1.20


0.050.70 0.70 1.20


Overhang

Ratio

Wide


Curtain

Closed

D1 Solid Door [2] Sheltered Wall 2 South West 2.00



W3 Window [1] External Wall 1 South East None 0.00 2.59





W6 Window [1] External Wall 1 North West None 0.00 3.75

W7 Window [1] External Wall 1 North West None 0.00 3.75









Designed q50 3.00

Property Tested ?

As Built q50

Same As Designed ?



Present

Yes




Night Ventilation Yes




MV Reference Number

Configuration



Duct Type Rigid


Wet Rooms 1

Brand, Model .


MHS SHS Other Total







22.0 Lighting

Internal




External






Description


Main Heating 2 None

Description


Community Heating






No



No


System

No

Solar Panel No

25.0 Main Heating 1



Database Ref. No.

Fuel Type

Main Heating BGB

TestMethod

SAP Code 102



In Winter

In Summer

Model Name .

Manufacturer .


PCDF Controls 0


Sap Code 2110


Boiler Compensator


Oil Pump Inside

FI Case

FI Water


Smoke Control Area




Underfloor Heating

Flow Temperature


Combi boiler type

Combi keep hot type

Combi store type



PCDF Index

Distribution Loss


Controls

SAP Code


PCDF Index

Distribution Loss




Description

SHS efficiency %

SAP Code


Smoke Control Area

Test Method

Manufacturer

Model Name



SAP Code 901

Immersion Heater

Summer Immersion




Database ID 60027



Applicable Fuel: 1

Boiler Types: RCSK


PV module: 0


System



Cylinder Stat Yes








Loss (kwh/day)


In Airing Cupboard

31.0 Solar Panel

Solar Panel Area

Area Type

Panel Type


Orientation

Elevation

Overshading



Combined Cylinder







Little

34.0 Wind Turbines

Terrain Type Urban

Wind Turbines

Count


Rotor Diameter

Hub Height



Description


Recommendations

None


standards

None




SAP Analysis - Top Floor Unit (Flat 15)


Summary Information


SAP Rating: 84 B

Environmental:91 B


General Requirements Compliance: Fail

DER: 12.45 Pass

DFEE:52.55 Fail

TER: 18.62

TFEE:52.39


Percentage DFEE<TFEE: -0.29 %





Orientation South West

1.0 Property Type Flat, Mid-Terrace


3.0 Date Built 2016




6.0 Measurements


Ground Floor: 25.10 72.10 3.00



9.0 External Walls




9.1 Party walls


Party Wall 1 Other 36.90

10.0 External Roofs


External Roof 1 Plasterboard, insulated flat roof 0.11 72.10 70.90

11.1 Party Floors


Party Floor 1 Precast concrete planks floor, screed, carpeted 72.10




0.050.70 0.70 1.20


0.050.70 0.70 1.20

rooflight Manufacturer Roof WindowDouble Low-E Soft

0.050.70 0.70 1.20


Overhang

Ratio

Wide


Curtain

Closed

D1 Solid Door [2] Sheltered Wall 2 South West 2.00






R1 Roof Window [1] External Roof 1 Horizontal None 1.20








Designed q50 3.00

Property Tested ?

As Built q50

Same As Designed ?



Present

Yes




Night Ventilation Yes




MV Reference Number

Configuration



Duct Type Rigid


Wet Rooms 1

Brand, Model .


MHS SHS Other Total







22.0 Lighting

Internal




External






Description


Main Heating 2 None

Description


Community Heating






No



No


System

No

Solar Panel No

25.0 Main Heating 1

Database Ref. No.

Fuel Type



Main Heating BGB

TestMethod

SAP Code 102



In Winter

In Summer

Model Name .

Manufacturer .


PCDF Controls 0


Sap Code 2110


Boiler Compensator


Oil Pump Inside

FI Case

FI Water


Smoke Control Area




Underfloor Heating

Flow Temperature


Combi boiler type

Combi keep hot type

Combi store type



PCDF Index

Distribution Loss


Controls

SAP Code


PCDF Index

Distribution Loss




Description

SHS efficiency %

SAP Code


Smoke Control Area

Test Method

Manufacturer

Model Name



SAP Code 901

Immersion Heater

Summer Immersion




Database ID 60027



Applicable Fuel: 1

Boiler Types: RCSK


PV module: 0


System



Cylinder Stat Yes








Loss (kwh/day)


In Airing Cupboard

31.0 Solar Panel

Solar Panel Area

Area Type

Panel Type


Orientation

Elevation

Overshading



Combined Cylinder







Little

34.0 Wind Turbines

Terrain Type Urban

Wind Turbines

Count


Rotor Diameter

Hub Height



Description


Recommendations

None


standards

None




Appendix 3 – Overheating Analysis

Mary Seacole Residential Development

84873

Thermal Modelling Report

Author: Jacob Sismey

Checked by: Rimesh Patel

Date: 16-07-2015

DOCUMENT HISTORY

Rev Date Author Checked Comments / Purpose of Issue

0 29-06-2015 JWS RP First Issue

Final 16-07-2015 JWS RP Planning



Job no: 84873

Date: July 2015

L:\JOBS\84873 Mary Seacole Residential - 15 Flats\9. Reports\9.2 Reports\Thermal

modelling\84873 - Thermal Modelling Report - July 2015.docx

Page 3 of 8

Contents

1.0 Introduction ............................................................................................................................................ 4

2.0 Summary................................................................................................................................................ 4

3.0 Model Input Data ................................................................................................................................... 5

4.0 Internal Heat Gain Assumptions ............................................................................................................ 6

5.0 Window Openings .................................................................................................................................. 6

6.0 Results ................................................................................................................................................... 7

7.0 Conclusion ............................................................................................................................................. 8



Job no: 84873

Date: July 2015



Page 4 of 8

1.0 Introduction

The thermal modelling of the Mary Seacole Residential building has been focused on two typical

plots that form part of the building, specifically in regard to managing overheating within the living

room and bedrooms. To assess overheating criteria from the Islington Environmental Design

Planning Guidance document have been used.

The purpose of this report is to provide the compliance/assessment evidence at the current design

stage for:-

Overheating/Thermal Comfort

The thermal modelling work has been carried out using the dynamic thermal software developed by

Integrated Environmental Solutions (IES) developed by Integrated Environmental Solutions (IES)

applied in accordance with CIBSE AM11 “Building Energy and Environmental Modelling”.

It has been used to analyse different ventilation strategies and anticipate internal temperatures in

different areas. The thermal model has been simulated using the following IES packages:-

Model IT – 3-D view model was constructed

Apache – thermal calculation and simulation

MacroFlo – multi-Zone bulk air movement simulation and invoked as an adjunct to Apache

simulation

Suncast – solar shading analysis and invoked as an adjunct to Apache simulation

<VE> Compliance – to test compliance with UK Building Regulations dealing with the

conservation of fuel and power.

2.0 Summary

In accordance with the Islington Environmental Design Planning Guidance, two specific weather files

have been used to assess the potential for the building to overheat in predicted future years due to

the potential increase in average global temperatures. The primary weather file used is the Design

Summer Year for the 90th percentile for 2030. The second weather file used is the design summer

year for the 90th percentile for 2050.

For this model each window has been set as openable at 60% of the area in order to simulate the

input from natural ventilation during the summer months.

Two different flats were analysed with the main living areas and main bedrooms assessed in each

flat. A typical room occupancy profile was used for occupants typically going to work during the day

and occupying the dwelling in the mornings and evenings. If increased occupancy is used, then the

overheating results will change.

The results show that all types’ rooms are able to achieve the requirements assuming the 60% of

openable window areas and assuming a typical room occupancy profile.



Job no: 84873

Date: July 2015



Page 5 of 8

3.0 Model Input Data

The construction type will have a significant effect on the thermal performance of a building. Those

classified as lightweight are generally good performers during winter, where heat losses are low

resulting from low ‘U’ values and air tight construction.

Building fabric

The following constructions were used in the model, listed from external to internal.

ID Category Description Data source U value

(W/m²·K)

STD_CEIL Internal Ceiling/Floor 2013 Internal

Ceiling/Floor

Generic 1.0866

STD_DOOR Door 2013 Door Generic 2.1997

STD_EXT1 External Window MS External

Window

Generic 1.2553

STD_FLO2 Ground/Exposed

Floor

MS Exposed Floor Generic 0.116

STD_PART Internal Partition 2013 Internal

Partition

Generic 1.7888

STD_ROO1 Roof MS Roof Generic 0.1141

STD_WAL2 External Wall MS External Wall Generic 0.1517

The air permeability was targeted at 3m3/m2.h at 50 Pa.

Weather Files

In accordance with the Islington Environmental Design Planning Guidance, two specific weather files

have been used to assess the potential for the building to overheat in predicted future years due to

the potential increase in average global temperatures. The primary weather file used is the Design

Summer Year for the 90th percentile for 2030. The second weather file used is the design summer

year for the 90th percentile for 2050.

Proposed Mechanical Services

The mechanical services in the thermal model have been based upon the supplied design

information as follows:-

Heating systems:

Gas Boiler serving radiators – All residential spaces.

Electric Panel Heaters – Communal circulation areas.

DHW systems:

Indirect hot water cylinder

Ventilation systems:

Natural ventilation – Communal circulation areas.

Mechanical Heat Recovery Ventilation (MHRV) – Dwellings.



Job no: 84873

Date: July 2015



Page 6 of 8

HVAC Systems

The performances of the building HVAC services in the thermal model have been based upon the

supplied design information as follows:

Heating System Efficiency 91%

Fuel – Natural Gas

Specific Fan Power 0.25 W/l/s

Domestic Hot Water Efficiency 91%

Fuel – Natural Gas

Proposed Electrical Services

The electrical services in the thermal models have been based on the information supplied as

follows:-

Electric power factor for the whole building: <0.9

Lighting system has provision for metering: Yes

Lighting system metering warns of “out of range” values: No

For the purposes of this report, two opposing flats were considered within the building. The two flats

are the ground floor flat 2 and the third floor flat 14. The two flats represent both north and south

elevations of the building with the third floor flat also considering the extended glazing.

4.0 Internal Heat Gain Assumptions

The internal heat gain assumptions made in the model are critical for assessing the effectiveness of

naturally ventilating rooms. Below are the assumptions made for the occupied dwelling rooms on

which, this report is focused. However, the use of the two areas has been used across the other

rooms in the building.

Lighting

An average lighting value of 6.0W/m2 has been used which represents an improvement over

Building Regulation requirements and the use of energy efficient lighting.

Occupancy An occupancy density of 6m2/person has been used along with a typical occupancy profile based on

the occupants traditional working hour patterns.

5.0 Window Openings

The windows have been modelled assuming that they are openable by the occupant. This means

that early morning and evening purging can realistically be assumed to take place. Purging is used

to drop the temperature of the rooms during unoccupied times. The purging opening times have

been restricted to 06:00 to 23:00 for security reasons.

The simulation controls have been set to react to both temperature and CO2 concentration, as these

are fundamentally important to comfort and air quality.



Job no: 84873

Date: July 2015



Page 7 of 8

The windows open when the internal room temperature reaches 21oC unless the outside

temperature is warmer. The windows will open at lower temperatures if the CO2 concentrations

reach 1100ppm.

In the model the windows have been split into the basic forms as shown on the architect’s drawings.

The location of the window opening in the facades does not affect the modelling of the room. This is

due to the way the room is treated within the model. The room is treated as a totally uniform space

with no variation in conditions within the room.

6.0 Results

Overheating Criteria

The following paragraphs have been taken from the Islington Environmental Design Planning

Guidance and the details have been used to assess the overheating requirements in this report.

Major developments

6.0.24 All major developments should demonstrate effective adaptation to projected future summer

temperatures via modelling of the building under future temperature scenarios, taking into account

climate change projections. Details of the council's modelling requirements are set out below.

Islington Council already requires modelling of internal temperatures for major applications, however

adoption of policy DM44 and this guidance will strengthen the policy basis for securing more robust

modelling to ensure that the risk of overheating is effectively mitigated.

6.0.25 The council will require applicants to demonstrate that overheating has been effectively

addressed by meeting standards in the latest CIBSE (Chartered Institute of Building Service

Engineers) guidance. As of January 2012 CIBSE's overheating standard is contained in CIBSE

Guide A: Environmental design (2006); this provides the following standards.

For living room, less than 1% of occupied hours are over an operative temperature

of 28°C;

For bedrooms, less than 1% of occupied hours are over 26°C;

6.0.26 In 2012 CIBSE will be releasing a new overheating methodology, based on the adaptive

comfort model. When this is available this shall be used instead of the 2006 version. Any future

replacements, additions or alterations to CIBSE's overheating guidance shall be used in preference

to older methods/standards.

Overheating Analysis

The following results table has been derived from the analysis results from the IES Vitual

Environment model. The values highlighted show the percentage of occupied hours in accordance

with the criteria above.



Job no: 84873

Date: July 2015



Page 8 of 8

Overheating Results

File Location > 25.00 > 26.00 > 27.00 > 28.00 > 29.00

2030 90th Percentile Design Summer Year

Mary Seacole

90th 2030 D

GF: F3

Bed 1

0.7 0.3 0.1 0 0

Mary Seacole

90th 2030 D

GF: F3

Living

0.3 0.1 0 0 0

Mary Seacole

90th 2030 D

TF: F1

Bed 1

0.4 0.2 0 0 0

Mary Seacole

90th 2030 D

TF: F1

Living

0.2 0 0 0 0

2050 90th Percentile Design Summer Year

Mary Seacole

90th 2050 D

GF: F3

Bed 1

2.4 0.9 0.5 0.2 0.1

Mary Seacole

90th 2050 D

GF: F3

Living

0.9 0.4 0.2 0.1 0

Mary Seacole

90th 2050 D

TF: F1

Bed 1

1.3 0.7 0.3 0.1 0

Mary Seacole

90th 2050 D

TF: F1

Living

0.9 0.4 0.2 0.1 0

7.0 Conclusion

Based on the assumptions made, the typical rooms analysed meet the Islington overheating

requirements for both the primary and secondary future 2030 and 2050 weather files.

The results provided have been calculated against the occupancy figures and profiles described in

this report. Any alternative profiles will have an effect on the results. However, this would require

individual dwelling and room analysis which is not part of the Islington Environmental Design

Planning Guidance.



Appendix 4 – SUDS Statement

MLM Consulting Engineers Ltd Main Tel: 020 7422 7800

Eldon House, 2 Eldon Street, London EC2M 7LS Main Fax: 020 7426 2095

1

Sustainable Urban Drainage SuDS Statement

Job Title: Mary Seacole, Islington

Job Reference: ARP/666490/NL

Date: 10 June 2015

By: Neil Liles BSc CEng MICE

1 Introduction

MLM Consulting Engineers Ltd has been appointed by London Borough of Islington

to undertake the below ground foul and surface water drainage design for the

redevelopment of the former Mary Seacole Nursery into 15 flats. This statement

together with drawings listed below outlines the drainage proposals that have

been designed to comply with Islington’s Sustainable design and construction

Policies with respect to the surface water drainage of the site.

Pre-development Site Drainage

The old Nursery building occupies approximately half of the 720sqm site and was

positively drained to the public sewer. The area around the building was paved

with gullies shown around the building. The rear garden, an area of some 200sqm

was used as a play area part paved with rubber tarmac and part laid to grass with

no sign of surface run off drainage.

2 Surface Water Drainage Strategy

The drainage design has adopted where possible the principles embodied in with

the hierarchy set out in LB of Islington Planning Policy DM6.6 Flood Prevention.

Sustainable Urban Drainage SuDS Statement

Page: 2

Job Title: Mary Seacole, Islington

Job Reference: ARP/666490/NL

Date: 10 June 2015

2

To conform to the SUDS design criteria development should utilise sustainable

urban drainage systems (SUDS) unless there are practical reasons for not doing

so and should aim to achieve greenfield run-off rates and ensure that surface

water runoff is managed as close to its source as possible in line with the following

drainage hierarchy:

1 Store rainwater for later use.

2 Use infiltration techniques, such as porous surfaces in non-clay areas.

3 Attenuate rainwater in ponds or open water features for gradual release.

4 Attenuate rainwater by storing in tanks or sealed water features for

gradual release.

5 Discharge rainwater direct to a watercourse.

6 Discharge rainwater to a surface water sewer/drain.

7 Discharge rainwater to the combined sewer.

Addressing how this development complies with the drainage hierarchy above is

noted below in ascending order:-

1 An element of storing rainwater for later reuse is provided for within the

‘green roofs’ proposed and the provision of water butts, these have the

overall effect of reducing the total annual surface run off, but as far as the

control of peak run off the effect is minimal for a development of this size.

2 SUDS Infiltration techniques into the surrounding ground are not possible

as the ground is predominantly Clay.

3 The provision of safe ponds or open water features are not possible as the

layout and use of the external areas does not lend itself to this sort of

feature.

4 The site does lend itself to the provision of underground storage tanks as

well as the use of storage within voided fill material therefore these are

proposed. Refer to MLM drawing 666490_100

5 There is not a watercourse locally available to the site.

6 There is no surface water sewer serving this site.

7 There is a combined ‘public’ sewer that serves the site. The proposed run

off from the development will be routed through permeable paving and an

onsite storage facility with discharges restricted to green field rates before

connecting to the combined sewer.

The drainage strategy is set out on MLM drawing 666490_100 Proposed Drainage

Strategy Layout.

3

All new roof, paved and unpaved areas run off is collected via down pipes or sub

base drains with a dedicated gravity drain routed through an underground

attenuation tank with a limited discharge set at 5l/s. 5l/s being the recognised

minimum practical size to restrict flows to without increasing the risk of producing

flow control structure that are prone to blockage.

Micro Drainage software has been used to size the facility to accept 100yr storms

with an additional 30% allowance for climate change over a wide range of

durations without surface flooding.

The attenuation required is split between an underground tank and within the

voids of the voided fill and sub base materials to be utilised within the external

works. The principals are shown on our strategy drawings and are subject to

further development during detailed design.

The new Foul and Surface Water (SW) discharges are to be collected in a separate

gravity piped systems and discharged either via the existing private combined

drainage or into a new combined sewer connection chamber at the boundary. The

principals are shown on MLM Drainage Strategy drawing 66490 /100

The receiving Thames Water sewers are combined sewers that receive both foul

and surface water discharges. A copy of the Thames Water Sewer Asset plan is

held in the appendix to this report. Thames Water design practise has been

followed by keeping foul and SW drainage separate on site prior to connecting

them to the public combined sewer.

Any slight increase in fouls discharges from the new development over and above

those from the existing nursery will be balanced by the significant reduction in the

proposed surface water discharges. As described above the surface water run-off

from the new development is being held up onsite and discharged to the Public

Sewer at a rate significantly less than the unrestricted discharge from the existing

Nursery. This development is therefore likely to have a reduced impact on the

receiving Public Sewers.

The above demonstrate how the Quantity, Quality, Amenity and Biodiversity

elements of the DM6.6 is addressed.

• The Quantity element is addressed by the attenuation of the site run off.

• The Quality aspects are addressed by the green roof and permeable paving.

• The Amenity and Biodiversity are to be maximised within the Landscape

design with the runoff control measures proposed ensuring that the flow and

volumes of run off entering the public open space are predictable, clean and

safe.

List of Drawings

MLM job ref, Drawing Title Drawing Number

666490 Proposed Drainage Strategy

Layout /100

666490 Thames Water Asset Location

Search Extract

RW:666490-REP-SBU-005-SUDS

Thames Water Utilities Ltd, Property Searches, PO Box 3189, Slough SL1 4W, DX 151280 Slough 13

T 0845 070 9148 E [email protected] I www.thameswater-propertysearches.co.uk

Page 6 of 12

Asset Location Search Sewer Map - ALS/ALS Standard/2014_2894288

The width of the displayed area is 200 m and the centre of the map is located at OS coordinates 530330,186451 The position of the apparatus shown on this plan is given without obligation and warranty, and the accuracy cannot be guaranteed. Service pipes are not shown but their presence should be anticipated. No liability of any kind whatsoever is accepted by Thames Water for any error or omission. The actual position of mains and services must be verified and established on site before any works are undertaken.

Based on the Ordnance Survey Map with the Sanction of the controller of H.M. Stationery Office, License no. 100019345 Crown Copyright Reserved.

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BRYETT R

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a to e

TCB

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1 to 18

95 to 99

25 to 30

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13 to 18

21 to 26

13 to 20

Ward Bdy

Playground

El Sub Sta

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P

67

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Page 7 of 12

NB. Levels quoted in metres Ordnance Newlyn Datum. The value -9999.00 indicates that no survey information is available

Manhole Reference Manhole Cover Level Manhole Invert Level

3413 2401 3404 2406 3419 3405 3424 3412 3422 3411 3410 241A 251A 3504 3501 3505 4503 4303 3416 3425

32.3 33.03 32.16 33.07 32.4 32.15 32.14 32.25 32.35 32.32 32.27 n/a n/a 32.06 n/a 32.02 32.97 30.92 32.35 31.98

31.21 12.09 30.38 29.16 31.29 30.27 30.22 30.12 30.7 30.08 29.48 n/a n/a 12.57 n/a 29.38 29.8 n/a 30.96 30.87

The position of the apparatus shown on this plan is given without obligation and warranty, and the accuracy cannot be guaranteed. Service pipes are not shown but their presence should be anticipated. No liability of any kind whatsoever is accepted by Thames Water for any error or omission. The actual position of mains and services must be verified and established on site before any works are undertaken.



Page 8 of 12

ALS Sewer Map Key

Foul: A sewer designed to convey waste water from domestic andindustrial sources to a treatment works.

Surface Water: A sewer designed to convey surface water (e.g. rainwater from roofs, yards and car parks) to rivers or watercourses.

Combined: A sewer designed to convey both waste water and surfacewater from domestic and industrial sources to a treatment works.

Trunk Surface Water

Storm Relief

Vent Pipe

Proposed Thames SurfaceWater Sewer

Gallery

Surface Water RisingMain

Sludge Rising Main

Vacuum

Public Sewer Types (Operated & Maintained by Thames Water)

Notes:

1) All levels associated with the plans are to Ordnance Datum Newlyn.

2) All measurements on the plans are metric.

3) Arrows (on gravity fed sewers) or flecks (on rising mains) indicate direction offlow.

4) Most private pipes are not shown on our plans, as in the past, this information hasnot been recorded.

5) ‘na’ or ‘0’ on a manhole level indicates that data is unavailable.

Trunk Foul

Trunk Combined

Bio-solids (Sludge)

Proposed Thames WaterFoul Sewer

Foul Rising Main

Combined Rising Main

Proposed Thames WaterRising Main

Sewer Fittings

A feature in a sewer that does not affect the flow in the pipe. Example: a ventis a fitting as the function of a vent is to release excess gas.

Operational ControlsA feature in a sewer that changes or diverts the flow in the sewer. Example:A hydrobrake limits the flow passing downstream.

Air Valve

Dam Chase

Fitting

Meter

Vent Column

Control Valve

Drop Pipe

Ancillary

Weir

End Items

End symbols appear at the start or end of a sewer pipe. Examples: anUndefined End at the start of a sewer indicates that Thames Water has noknowledge of the position of the sewer upstream of that symbol, Outfall on asurface water sewer indicates that the pipe discharges into a stream or river.

Outfall

Undefined End

Inlet

Other Symbols

Symbols used on maps which do not fall under other general categories

Summit

Public/Private Pumping Station/

Invert Level

Change of characteristic indicator (C.O.C.I.)

Other Sewer Types (Not Operated or Maintained by Thames Water)

Areas

Lines denoting areas of underground surveys, etc.

Agreement

Chamber

Operational Site

Conduit Bridge

Foul Sewer

Combined Sewer

Culverted Watercourse

Surface Water Sewer

Gulley

Proposed

Abandoned Sewer

Tunnel

6) The text appearing alongside a sewer line indicates the internal diameter ofthe pipe in milimetres. Text next to a manhole indicates the manholereference number and should not be taken as a measurement. If you areunsure about any text or symbology present on the plan, please contact amember of Property Insight on 0845 070 9148.

P PM

W



Page 9 of 12

Asset Location Search Water Map - ALS/ALS Standard/2014_2894288

The width of the displayed area is 200 m and the centre of the map is located at OS coordinates 530330, 186451. The position of the apparatus shown on this plan is given without obligation and warranty, and the accuracy cannot be guaranteed. Service pipes are not shown but their presence should be anticipated. No liability of any kind whatsoever is accepted by Thames Water for any error or omission. The actual position of mains and services must be verified and established on site before any works are undertaken. Based on the Ordnance Survey Map with the Sanction of the controller of H.M. Stationery Office, License no. 100019345 Crown Copyright Reserved.

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Page 10 of 12

ALS Water Map Key

PIPE DIAMETER DEPTH BELOW GROUND

Up to 300mm (12”) 900mm (3’)

300mm - 600mm (12” - 24”) 1100mm (3’ 8”)

600mm and bigger (24” plus) 1200mm (4’)

DistributionMain: The most common pipe shown on water maps.With few exceptions, domestic connections are only made todistribution mains.

Trunk Main: A main carrying water from a source of supply to atreatmentplant or reservoir, or from one treatmentplant or reservoirto another. Also a main transferring water in bulk to smaller watermains used for supplying individual customers.

Supply Main: A supply main indicates that the water main is usedas a supply for a single property or group of properties.

Fire Main: Where a pipe is used as a fire supply, the word FIRE willbe displayed along the pipe.

Metered Pipe: A metered main indicates that the pipe in questionsupplies water for a single property or group of properties and thatquantity of water passing through the pipe is metered even thoughthere may be no meter symbol shown.

Transmission Tunnel: A very large diameter water pipe. Mosttunnels are buried very deep underground. These pipes are notexpected to affect the structural integrity of buildingsshown on themap provided.

ProposedMain: A main that is still in the planningstages or in theprocess of being laid. More details of the proposed main and itsreference number are generally included near the main.

Water Pipes (Operated & Maintained by Thames Water)

Hydrants

Single Hydrant

Meters

Meter

Valves

General PurposeValve

Air Valve

End Items

�Symbol indicating what happens at the end of a water main.

Blank Flange

Capped End

Undefined End

Manifold

Customer Supply

Fire Supply

Emptying Pit

Operational Sites

Booster Station

Other

Other (Proposed)

Pumping Station

Service Reservoir

Shaft Inspection

TreatmentWorks

Unknown

Other Symbols

Other Water Pipes (Not Operated or Maintained by Thames Water)

Data Logger

Other Water Company Main: Occasionally other water companywater pipes may overlap the border of our clean water coveragearea. These mains are denoted in purple and in most cases havethe owner of the pipe displayed along them.

Private Main: Indiates that the water main in question is not ownedby Thames Water. These mains normally have text associated withthem indicating the diameter and owner of the pipe.

3” SUPPLY

3” FIRE

3” METERED

L

CF

4”

16”

Water Tower

?

Pressure ControlValve

CustomerValve



Appendix 5 – Code for Sustainable Homes Pre-Assessment Report


Code for Sustainable Homes Pre-Assessment

Job No: 84873



Date: 16/07/2015

Status: Final

Code for Sustainable Homes Pre-Assessment Mary Seacole Job No: 84873 Date: July 2015

L:\JOBS\84873 Mary Seacole Residential - 15 Flats\9. Reports\9.2 Reports\ Page 2 of 18

Document Control Revision Stage Date Author Checked by


Final Planning 16.07.2015 RP LMT

Team

Client

Islington Council

Architect

Islington Council


Ingleton Wood LLP

Planners

HTA Design LLP

Employers Agent

Walker Management

Civil / Structural

MLM

Daylight / Sunlight

Malcom Hollis



1.0 Executive Summary ........................................................................................................... 4

2.0 Introduction ........................................................................................................................ 5

2.1 What is Code for Sustainable Homes.................................................................................................... 5

2.2 Overall Code Levels and Scoring .......................................................................................................... 6

2.3 Breakdown of Categories and Their Weightings ................................................................................... 6

3.0 Pre-Assessment Evaluation .............................................................................................. 7

3.1 Current Score ........................................................................................................................................ 7

3.2 Potential Credits .................................................................................................................................... 7

3.3 Score Summary ..................................................................................................................................... 8



1.0 Executive Summary

A CfSH pre-assessment has been carried out for the proposed Mary Seacole residential scheme.

The development currently achieves a score of 69.48%, which equates to a rating of ‘Level 4’. This

score is only indicative in line with the current scheme design and will need to be continually

assessed throughout the programme.

Additional ‘potential’ credits have been highlighted which need to be reviewed further by the design

team in order to confirm compliance. These credits will also act as a back-up incase some of the

currently targeted credits cannot be achieved as the design progresses.

Predicted contribution of individual section to the total score



2.0 Introduction

2.1 What is Code for Sustainable Homes

The Code for Sustainable Homes (the Code) is an environmental assessment method which assesses environmental performance in a two stage process (Design stage and Post-construction) using objective criteria and verification. The results of the Code assessment are recorded on a certificate assigned to the dwelling. It is a national standard for use in the design and construction of new homes with a view to encouraging continuous improvement in sustainable home building. The Code for sustainable homes covers nine categories of sustainable design including:

Energy and CO2 Emissions

Water

Materials

Surface Water Run-off

Waste

Pollution

Health and Wellbeing

Management

Ecology

Each category includes a number of environmental issues. Each issue is a source of impact on the environment which can be assessed against a performance target and awarded one or more credits. Performance targets are more demanding than the minimum standard needed to satisfy Building Regulations or other legislation. They represent good or best practice, are technically feasible, and can be delivered by the building industry. In addition to the mandatory standards, each design category scores a number of percentage points. The total number of percentage points establishes the Level or Rating for the dwelling. The certificate illustrates the rating achieved with a row of stars. A star is awarded for each level achieved. Where an assessment has taken place by where no rating is achieved, the certificate states that zero stars have been awarded.



2.2 Overall Code Levels and Scoring

Total percentage points score

(equal to or greater than)

Code Levels

36 Points Level 1 (★)

48 Points Level 2 (★★)

57 Points Level 3 (★★★)

68 Points Level 4 (★★★★)

84 Points Level 5 (★★★★★)

90 Points Level 6 (★★★★★★)

Relationship between Total percentage points score and Code Level

2.3 Breakdown of Categories and Their Weightings

Categories of environmental impact

Total credits in each category

Weighting factor

(% points contribution)

Energy & CO2 Emissions 31 36.4%

Water 6 9.0%

Materials 24 7.2%

Surface Water Run-off 4 2.2%

Waste 8 6.4%

Pollution 4 2.8%

Health & Wellbeing 12 14.0%

Management 9 10.0%

Ecology 9 12.0%

Total 107 100%

Total Credits available, weighting factors and points



3.0 Pre-Assessment Evaluation

3.1 Current Score

A CfSH pre-assessment has been carried out for the proposed Mary Seacole residential scheme. The development currently achieves a score of 69.48%, which equates to a rating of ‘Level 4’. This

score is only indicative in line with the current scheme and will need to be continually assessed

throughout the programme.

3.2 Potential Credits

An additional 12.22% has been highlighted as potential credits which need to be reviewed further by the design team in order to confirm compliance. These credits will also act as a back-up incase some of the currently targeted credits cannot be achieved as the design progresses.

Credit Issue % Change

ENE 1 Dwelling Emission Rate

Reduce CO2 emissions to achieve a 35-44% improvement over Part L 2013 TER.

0.82%

ENE 2 Fabric Energy Efficiency

Achieve a fabric energy efficiency of 43 kWh/m2/year. 1.17%

WAT 1 Indoor Water Use

Reduce potable water consumption to ≤ 90 l/p/day. 1.50%

MAT 1 Environmental Impact of Materials

Improved material selection in accordance with Green Guide ratings.

0.90%

MAT 2 Responsible Sourcing of Materials - Basic Building Elements

Assess and responsibly source additional building elements. 0.30%

MAT 3 Responsible sourcing of Materials - Finishing Elements

Responsibly source 80% of additional finishing elements. 0.30%

HEA 1 Daylighting

Achieve remaining daylighting credits 2.33%

MAN 4 Security

Consult with an Architectural Liaison Officer (ALO) or Crime Prevention Design Advisor (CPDA) at the design stage and incorporate their recommendations into the design.

2.22%

ECO 2 Ecological Enhancement

Appoint a suitably qualified ecologist to recommend appropriate ecological features that will positively enhance the ecology of the site. Adopt all key recommendations and 30% of additional recommendations.

1.33%

ECO 4 Change in Ecological Value of Site

The change in ecological value before and after development is between 3 and 9 species per hectare.

1.33%

Total Credits available, weighting factors and points



3.3 Score Summary

ISSUE

Maximum Targeted Potential Unlikely


Energy & CO2 Emissions

31 36.4 20.3 23.8 1.7 2.0 9 10.6

Water 6 9.0 4 6.0 1 1.5 1 1.5

Materials 24 7.2 16 4.8 5 1.5 3 0.9

Surface Water Run-Off

4 2.2 4 2.2 0 0.0 0 0.0

Waste 8 6.4 8 6.4 0 0.0 0 0.0

Pollution 4 2.8 4 2.8 0 0.0 0 0.0

Health & Well Being

12 14.0 10 11.7 2 2.3 0 0.0

Management 9 10.0 7 7.8 2 2.2 0 0.0

Ecology 9 12.0 3 4.0 2 2.7 4 5.3

TOTAL 107 100.00 76.3 69.48 13.7 12.22 17 18.30

Summary table



Energy and CO2 Emissions


ENERGY & CO2 EMISSIONS

Ene1 Dwelling Emission Rate 10 11.74 4.3 5.05 0.7 0.82 5 5.87

Targeted: Reduce CO2 emissions to achieve a 35% improvement over Part L 2013

TER.

Potential: Reduce CO2 emissions to achieve a 35-44% improvement over Part L

2013 TER.

Unlikely: Reduce CO2 emissions to achieve a ≥44% improvement over Part L 2010

TER.

Ene2 Fabric Energy Efficiency 9 10.57 4 4.70 1 1.17 4 4.70

Targeted: Achieve a fabric energy efficiency of 45 kWh/m2/year.

Potential: Achieve a fabric energy efficiency of 43 kWh/m2/year.

Unlikely: Achieve a fabric energy efficiency of <43 kWh/m2/year.

Ene 3 Energy Display Devices 2 2.35 2 2.35 0 0.00 0 0.00Targeted: Display electricity and primary heating fuel consumption data to

occupants by a correctly specified energy display device.

Ene 4 Drying Space 1 1.17 1 1.17 0 0.00 0 0.00

Targeted: Provide adequate space and equipment for drying clothes (4m+ of drying

line for 1-2 bedroom dwellings, 6m+ of drying line for 3+ bedroom dwellings).

Note: The drying space can either be a heated space with a minimum extract rate

of 30l/s OR an unheated outbuilding with adequate ventilation OR an external

secure space with access restricted to occupants of the dwelling(s) and accessed

directly from an external door.

ISSUEMaximum Targeted Potential Unlikely

Detailed Description




ENERGY & CO2 EMISSIONS

Ene 5Energy Labelled White

Goods2 2.35 2 2.35 0 0.00 0 0.00

Targeted: Specify fridges and freezers to be A+ rated (1st credit). Specify washing

machines and dishwashers to be A rated and EITHER tumble dryers or washer

dryers to be B rated OR provide EU Energy Efficiency Labelling Scheme Information

to each dwelling (2nd credit).

Ene 6 External Lighting 2 2.35 2 2.35 0 0.00 0 0.00

Targeted: Provide all external space lighting by dedicated energy efficient fittings

with appropriate control systems. All burglar security lights must have a maximum

wattage of 150 W, movement detecting control devices (PIR) and daylight cut-off

sensors. All other security lighting must have dedicated energy efficient fittings and

fitted with either daylight cut-off sensors or a time switch.

Ene 7Low or Zero Carbon

Technologies2 2.35 2 2.35 0 0.00 0 0.00

Targeted: Energy is supplied by low or zero carbon technologies to reduce CO2

emissions by 15%.

Ene 8 Cycle Storage 2 2.35 2 2.35 0 0.00 0 0.00

Targeted: Provide adequately sized, secure and convenient cycle storage. 1 cycle

space for every studio/1 bed, and 2 cycle spaces for every 2 and 3 bedroom

dwellings (2nd credit).

Ene 9 Home Office 1 1.17 1 1.17 0 0.00 0 0.00

Targeted: Provide sufficient space and services to set up a home office in a

suitable room. The dedicated space must have adequate ventilation and achieve an

average daylight factor of 1.5%.

31 36.40 20.3 23.84 1.7 2.00 9 10.57

ISSUE

TOTAL

Maximum Targeted Potential UnlikelyDetailed Description



Water


WATER

Wat 1 Indoor Water Use 5 7.50 3 4.50 1 1.50 1 1.50

Targeted: Reduce potable water consumption to ≤ 105 l/p/day.

Potential: Reduce potable water consumption to ≤ 90 l/p/day.

Unlikely: Reduce potable water consumption to ≤ 80 l/p/day.

Mandatory Requirements:

Level 3 and 4: ≤ 105 l/p/day

Wat 2 External Water Use 1 1.50 1 1.50 0.00 0 0.00

Targeted: Provide a sufficiently sized system to collect rainwater for

external/internal irrigation/use (i.e. rainwater butts, central rainwater collection

systems etc.).

6 9.00 4 6.00 1 1.50 1 1.50

ISSUE

TOTAL




Materials


MATERIALS

Mat 1Environmental Impact of

Materials15 4.50 10 3.00 3 0.90 2 0.60

Targeted: Specify key elements of the building envelope (i.e. roof, external walls,

internal walls, upper and ground floors and windows) using the Green Guide.

Potential: Improved material selection in accordance with Green Guide ratings.

Unlikely: Further improved material selection in accordance with Green Guide

ratings.


All levels: At least three key elements of the building envelope achieve a Green

Guide rating of A+ to D.

Mat 2

Responsible Sourcing of

Materials - Basic

Building Elements

6 1.80 4 1.20 1 0.30 1 0.30

Targeted: Responsibly source 80% of building elements.

Potential: Assess and responsibly source additional building elements.

Unlikely: Assess and responsibly source virtually all building elements.

Note: Building elements include frame, ground floor, upper floors (including

separating floors), roof, external walls, internal walls (including separating walls),

foundation/ substructure (excluding sub-base materials) and staircase. Additionally,

100% of any timber in these elements must be legally sourced

Mat 3

Responsible sourcing of

Materials - Finishing

Elements

3 0.90 2 0.60 1 0.30 0 0.00

Targeted: Responsibly source 80% of finishing elements.

Note: Finishing elements include staircase, windows, external & internal doors,

skirting, panelling, furniture, fascias and any other significant use. Additionally,

100% of any timber in these elements must be legally sourced

24 7.20 16 4.80 5 1.50 3 0.90

ISSUE

TOTAL




Surface Water Run-Off


SURFACE WATER RUN-OFF

Sur 1

Management of Surface

Water Run-off from

Developments

2 1.10 2 1.10 0 0.00 0 0.00

Targeted: No discharge from the developed site for rainfall depths up to 5 mm. The

run-off from all hard surfaces receive an appropriate level of SuDS to minimise the

risk of pollution.


All levels: Ensure the post development peak run-off rate and volume of run-off,

allowing for climate change over the development lifetime, is no greater than it would

have been before the development.

Sur 2 Flood Risk 2 1.10 2 1.10 0 0.00 0 0.00Targeted: Flood Risk A ssessment confirms development is located in Zone 1 (low

annual probability of flooding) and there is low risk of flooding from all sources.

4 2.20 4 2.20 0 0.00 0 0.00TOTAL





Waste


WASTE

Was 1

Storage of Non-

recyclable Waste and

Recyclable Household

Waste

4 3.20 4 3.20 0 0.00 0 0.00

Targeted:

• Provide a single bin of at least 30 litres when recyclable household waste is sorted

after collection. OR

• Provide at least three separate bins with a total capacity of 30 litres when

materials are sorted before collection. Each bin must have a capacity of at least 7

litres. OR

• Provision of an automated waste collection system which collects at least three

different types of recyclable waste.


All levels: Allocate adequate external waste storag space, sized in line with BS

5906 Standards (70 litres x no. of bedrooms + 30 litres per dwelling) OR based on

the waste containers provided by the Local Authority (whichever is greater).

Was 2Construction Site Waste

Management3 2.40 3 2.40 0 0.00 0 0.00

Targeted: Produce a Site Waste Management Plan (SWMP) including procedures

and commitments to minimise construction waste and divert waste from landfill.

Achieve a minimum 85% diversion rate (by weight or by volume) of non-hazardous

construction waste from landfill.

Was 3 Composting 1 0.80 1 0.80 0 0.00 0 0.00

Targeted: Provision of a Local Authority green/kitchen waste collection system OR

individual home composting facilities OR a local communal/community composting

service (where the distance between the site entrance and the

communal/community containers must not usually exceed 30m).

Note: External composting facilities and storage need to be located within a

maximum distance of 30m from the entrance door of each building

8 6.40 8 6.40 0 0.00 0 0.00TOTAL





Pollution


POLLUTION

Pol 1

Global Warming

Potential (GWP) of

Insulants

1 0.70 1 0.70 0 0.00 0 0.00

Targeted: Insulating materials for specific elements (roofs, walls, floors, hot water

cylinders, cold water storage tanks and external doors) only use substances that

have a GWP < 5.

Pol 2 NOx emissions 3 2.10 3 2.10 0.00 0 0.00 Targeted: Dry NOx Level of ≤ 40mg/kWh.

4 2.80 4 2.80 0 0.00 0 0.00TOTAL





Health & Well Being


HEALTH & WELL BEING

Hea 1 Daylighting 3 3.50 1 1.17 2 2.33 0 0.00

Targeted: Achieve 1 of 3 credits

Potential: Achieve remaining credits

Criteria:

- Kitchens achieve a minimum ADF of at least 2% (1st credit).

- All living rooms, dining rooms and studies achieve a minimum ADF of at least

1.5% (2nd credit).

- 80% of the working plane in each kitchen, living room, dining room and study must

receive direct light from the sky (3rd credit)

Hea 2 Sound Insulation 4 4.67 4 4.67 0 0.00 0 0.00Targeted: Airborne sound insulation values are at least 8dB higher and impact

sound insulation values are at least 8dB lower than Building Regs Document E.

Hea 3 Private Space 1 1.17 1 1.17 0 0.00 0 0.00

Targeted: Provide outdoor space (private or semi-private) of adequate size

(minimum 1.5m2 per bedroom for private space OR minimum 1 m2 per bedroom for

shared space).

Hea 4 Lifetime Homes 4 4.67 4 4.67 0 0.00 0 0.00 Targeted: Comply with all principles of Lifetime Homes.

12 14.00 10 11.67 2 2.33 0 0.00TOTAL





Management


MANAGEMENT

Man 1 Home User Guide 3 3.33 3 3.33 0 0.00 0 0.00

Targeted: Provision of a Home User Guide including info such as environmental

strategy, energy, water use, recycling & waste etc. and available in alternative

formats. The guide also includes additional information relating to the site and its

surroundings in terms of public transport, local amenities etc.

Man 2Considerate Constructors

Scheme2 2.22 2 2.22 0 0.00 0 0.00

Targeted: Achieve a Considerate Constructors Scheme (CCS) total score of

between 35 and 50. Score at least 7 in every section.

Man 3Construction Site

Impacts2 2.22 2 2.22 0 0.00 0 0.00

Targeted: Procedues in place to cover at least 4 of the following items.

- Monitor, report and set targets for CO2 / energy use arising from site activities.

- Monitor and report CO2 / energy use arising from commercial transport to and

from site.

- Monitor, report and set targets for water consumption from site activities.

- Adopt best practice policies in respect of air (dust) pollution arising from site

activities.

- Adopt best practice policies in respect of water (ground and surface) pollution

occurring on the site.

- 80% of site timber is reclaimed, re-used or responsibly sourced.

Man 4 Security 2 2.22 0 0.00 2 2.22 0 0.00

Potential: Consult with an Architectural Liaison Officer (ALO) or Crime Prevention

Design Advisor (CPDA) at the design stage and incorporate their recommendations

into the design.

9 10.00 7 7.78 2 2.22 0 0.00TOTAL





Ecology


ECOLOGY

Eco 1 Ecological Value of Site 1 1.33 0 0.00 0 0.00 1 1.33

Unlikely: The development site is confirmed as land of inherently low ecological

value (either by meeting the critieria of checklist Eco 1 or confirmed by a suitably

qualified ecologist)

Eco 2 Ecological Enhancement 1 1.33 0 0.00 1 1.33 0 0.00

Potential: Appoint a suitably qualified ecologist to recommend appropriate

ecological features that will positively enhance the ecology of the site. Adopt all key

recommendations and 30% of additional recommendations.

Eco 3Protection of Ecological

Features1 1.33 0 0.00 0 0.00 1 1.33

Unlikely: All existing features of ecological value on the development site

potentially affected by the works are maintained and adequately protected during

site clearance, preparation and construction works.

Eco 4Change in Ecological

Value of Site4 5.33 2 2.67 1 1.33 1 1.33

Targeted: The change in ecological value before and after development is between -

3 and +3 species per hectare.

Potential: The change in ecological value before and after development is between

3 and 9 species per hectare.

Unlikely: The change in ecological value before and after development is gretaer

than 9 species per hectare.

Eco 5 Building Footprint 2 2.67 1 1.33 0 0.00 1 1.33

Targeted: For blocks of flats, the ratio between net internal floor area and net

internal ground floor area is ≥ 3:1.

Unlikely: For blocks of flats, the ratio between net internal floor area and net

internal ground floor area is ≥ 4:1.

9 12.00 3 4.00 2 2.67 4 5.33

ISSUE

TOTAL




Appendix 6 – Draft Green Performance Plan


DRAFT Green Performance Plan

Job No: 84873



Date: 16/07/2015

Status: 1st Issue

DRAFT Green Performance Plan Mary Seacole Job no: 84873 - Date: July 2015

The Former Mary Seacole Nursery Site – DRAFT Green Performance Plan Page 2 of 8

Document Control

Revision Stage Date Author Checked by


Team

Client

Islington Council

Architect

Islington Council


Ingleton Wood LLP

Planners

HTA Design LLP

Employers Agent

Walker Management

Civil / Structural

MLM

Daylight / Sunlight

Malcom Hollis



1.0 Introduction ........................................................................................................................................... 4

1.1 Introduction ......................................................................................................................................... 4

1.2 Overview of the Development............................................................................................................. 4

1.3 Project Team ...................................................................................................................................... 5

2.0 Performance Targets and Indicators .................................................................................................. 6

2.1 Energy Use (kWh/yr) .......................................................................................................................... 6

2.2 Energy from Renewables (kWh/yr) ..................................................................................................... 6

2.3 Carbon Dioxide Emissions (kgCO2/yr) ................................................................................................ 6

2.4 Water Use (m3/yr) ............................................................................................................................... 6

3.0 Data Collection, Analysis and Reporting ........................................................................................... 7

3.1 Data Collection ................................................................................................................................... 7

3.2 Post Occupancy Evaluation ................................................................................................................ 7

3.3 Benchmarking ..................................................................................................................................... 7

4.0 Management and Monitoring ............................................................................................................... 8

4.1 Key Stakeholders ................................................................................................................................ 8

4.2 Management ....................................................................................................................................... 8

4.3 Timescales .......................................................................................................................................... 8

4.4 Recommendations for Improvement .................................................................................................. 8



1.0 Introduction

1.1 Introduction

This Green Performance Plan (GPP) has been produced in order to support the planning application for the

former Mary Seacole Nursery site, in regards to the requirements under Islington’s Environmental Design

SPD (October 2012).

This Draft GPP may be subject to further discussion and development between the applicant, the planning

authority and parties responsible for delivering the Green Performance Plan. A full GPP shall be submitted to

the local authority within 6 months of occupation and will include full details of the management, monitoring

and reporting of the plan. A final report on implementation of the GPP will be submitted following the

completion of 2 years of monitoring.

1.2 Overview of the Development

The proposal is for the demolition of the existing Mary Seacole Nursery and the development of a new design

led residential building that reflects the nature and scale of the street. The site is located in a residential area

at the junction between Tollington Way and Bryett Road, towards the north-west of Islington.

The new scheme will consist of 15 new residential apartments over 4 floors, including 7no. private sale units

and 8no. units for social rent.

The key sustainable design measures which are to be incorporated in the development include:

Optimised thermal performance beyond Building Regulations Part L1A 2013 requirements.

A reduction of CO2 emissions by at least 35% compared to a baseline Building Regulations Part L1A

2013 development (excluding unregulated power) via energy efficient heating and hot water systems

(i.e. individual gas boilers), low energy lighting, MVHR and roof-mounted PVs.

Specification of low water fittings.

Provision of dedicated storage facilities for general and recyclable waste in line with CfSH and

Islington Council’s requirements.

Careful selection of materials to ensure the majority of key building elements to achieve a Green

Guide rating of between A+ to D.

Incorporation of appropriate SUDs (i.e. green roof, permeable paving, attenuation tank etc.) to

minimise surface water run-off.

Increased levels of overall tree coverage and vegetation to protect against hotter summers.



1.3 Project Team

Client: Islington Council

Architect: Islington Council

M+E Engineers: Ingleton Wood LLP

Sustainability: Ingleton Wood LLP

Planners: HTA Design LLP

Employers Agent: Walker Management

Civil / Structural: MLM

Daylight / Sunlight: Malcom Hollis



2.0 Performance Targets and Indicators

2.1 Energy Use (kWh/yr)

Energy associated with electrical and heating use should be monitored for the residential units, if feasible.

Data should be compared against the performance target as indicated under SAP compliance calculations.

Where compliance calculations are utilised for this purpose, an allowance should be made for the suitability

of the software for modelling actual energy use.

2.2 Energy from Renewables (kWh/yr)

Electrical energy generated by the renewable systems should be monitored for the residential units. Data

should be compared against the performance data as indicated under manufacturers declared performance.

2.3 Carbon Dioxide Emissions (kgCO2/yr)

Carbon emissions arising from energy use associated with heating and electrical use for the residential units

should be monitored and compared against the performance target as indicated under SAP compliance

calculations.

Where compliance calculations are utilised for this purpose an allowance should be made for the suitability

of the software for modelling actual carbon emissions in use.

2.4 Water Use (m3/yr)

Domestic water use for the residential units should be monitored and compared against predicted

performance as indicated under Part G calculations and Islington’s Policy CS10. This should be split on a

per person metric where occupation data is known.



3.0 Data Collection, Analysis and Reporting

3.1 Data Collection

A suitable person shall be appointed to collect data in accordance with the indicators as shown under section

2.0. This person will hereby be referred to as the GPP Coordinator. Data should be collected for a minimum

of 2 years in accordance with below:

Daily Data Collection

The frequency of daily data collection will depend on the type of data to be collected. It is recommended that

meters are installed that provide automated data collection on at least an hourly basis, where practical. Data

should either be uploaded automatically to a suitable web based server or be downloaded to a memory card

(or similar).

Where data loggers are utilised, hourly data should be collected and retrieved on a monthly basis. Due to the

intensity of this type of monitoring, it is only recommended to use data-loggers for the period of 1 year.

Annual Data Collection

An annual visit to the site should be attended by the GPP Coordinator. This should involve a non-invasive

visual inspection of the buildings operation with the aim of identifying any emerging problems or wasteful

operational practices.

3.2 Post Occupancy Evaluation

A post-occupancy evaluation (POE) exercise should be carried one year after initial building occupation. This

is done to gain in-use performance feedback from building users to inform operational processes, including

re-commissioning activities, and maintain or improve productivity, health, safety and comfort.

3.3 Benchmarking

The data should be collected and appropriately analysed. Benchmarking tools such as ‘Carbon Buzz’ should

be utilised in order to give an accurate indication of the performance of the building against similar national

examples.

Carbon Buzz is a RIBA CIBSE platform for benchmarking the energy and carbon use of a building against

national benchmarks. It can be used to identify the performance gap between calculated (predicted) energy

use and operational energy use.



4.0 Management and Monitoring

4.1 Key Stakeholders

Client: Islington Council

GPP Coordinator: TBC

Local Planning Authority : Islington Council

Contractor: TBC

Occupants: TBC

4.2 Management

The GPP will be managed and steered via the GPP Coordinator in consultation with other key stakeholders

as above.

Continuity of the GPP across handover is key and arrangements should be in place prior to handover to

ensure the continuation of the monitoring process.

Ultimately the GPP will be carried out in accordance with the requirements as set out by the London Borough

of Islington.

4.3 Timescales

The monitoring will begin after a 6-12 month period after occupation, this is to allow the building to ‘settle’

which will affect the validity of any monitoring carried out.

The GPP will be carried out for a minimum period of 2 years in accordance with the details contained within

this report and those to be agreed as part of the full GPP.

Annual reports will be provided giving an overview of the monitoring undertaken and the comparison with

relevant benchmarks. After 2 years of monitoring has taken place, a final report will be provided identifying

recommendations for improvement where required.

4.4 Recommendations for Improvement

The final monitoring report will be provided with recommendations for improvement where required. These

recommendations will be provided to the key stakeholders for implementation.

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