8/12/2019 Topic 1 - Design Process
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DESIGN PROCESS
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BRIEFING
Preparing a detailed and comprehensive brief is
important.
The brief states precisely what the client wants.
Information required
Function of the building
Location and description of the site
Floor area of the building
Quality
Shape and aesthetic features
The constraints imposed by authority
Delivery time
Cost
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INCEPTION
Client’s initial
decision to build
Consider the
outlinerequirement
Appoint design
team
Determining project
finance methods
and client’s capacity
Preparing general
outline of
requirements and
plan future action
Cost study
of similar
buildings
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FEASIBILITY
Design team
Study of user
requirements, site
conditions,
planning, design,
cost, etcPrepare feasibility
report and cost limit to
provide the client with
an appraisal and
recommendation
Preliminary
estimate
1. Feasible
2. Functional
3. Technical
4. Financial
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OUTLINE PROPOSALS
Overall sketch design will be established but still
have insufficient information for each elemental
category
Design team
Evaluate cost implications of differing
design solutions
Preparing outline cost plan according to
group elements
Outline Cost
Plan
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SCHEME DESIGN
Major issues affecting design,planning, construction method
and specification will be
considered.
Full design of
project by the
architect
Preliminary design by
the engineers
Preparation of cost
plan
Design team
- All approval must beobtained
Detailed cost
plan - based on
individual
elements.
**Brief should notbe modified after
scheme design
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DETAIL DESIGN
All issues relating to design,
specification, construction and cost are
resolved.
Comparative Cost Study
On several construction methods,
material and layouts
Detail consideration on impact of
maintenance and running cost
Complete cost checking
**Any further change in location, size,
shape, or cost after this will result inabortive work.
Approximate
quantities
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Bills of QuantitiesIncluding:
•Working drawings
•Project schedule•Specifications
• Actual quotations
Production information
•Finalizing bills of quantities•Pre-tender estimate
Tender action•Cost analysis
•Tender evaluation
Invite tender Tenderers submit offer
Tender report – cost check
among pre-tender estimate and
priced tender
Hand over tender report to
client
Successful tenderer as main
contractor
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PROJECT PLANNING
Site is handed over
to the contractor
Contractor
prepare awork
programme
Prepare contract
document
Carrying out cost check
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ON SITE OPERATION
Contractorimplement the
work on siteDesign team
Evaluate the work & make
payment to contractor
Prepare interim valuation
Prepare financial statement
Monitor the
construction workCarrying out
continuous cost
control and cost
check
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COMPLETION
Project is completed
after inspection and
the certificate of
fitness
Hand over to the
client for
occupation
Contractor is
responsible for
defect
QS to prepare final account
Architect and engineer to
prepare record drawings
Design team