Proposed Penthouse Addition At 349 Commonwealth Ave ......TOP OF PROPOSED PENHOUSE ROOF TOP OF...

Back Bay Architectural District Commission Design Approval

July 6, 2017

349 Commonwealth Ave

Proposed Penthouse Addition At 349 Commonwealth Ave.

Block Plan


July 6, 2017

Key Plan 349 Commonwealth Ave.

Existing South Elevation Block View

Existing Pictures34

9 Co

mm

onw

ealth

Ave


July 6, 2017


Existing South Elevation

Existing Pictures

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Existing South Elevation


July 6, 2017


Existing North Elevation Block View

Existing Pictures

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July 6, 2017


Existing North Elevation Existing North Elevation

Existing Pictures

349 Commonwealth Ave 349 Commonwealth Ave


July 6, 2017Existing Pictures

Existing Roof Looking North


July 6, 2017

25' - 6" 43' - 5" 5' - 0"

64'

- 10

"

TOP OF PROPOSED STRUCTURE

EXISTING BUILDING

COMMONWEALTH AVE PUBLIC ALLEY 429

5' -

6"

5' -

6"

SIGHTLINESIGHTLINE

MEAN GRADE ELEVATION

9' -

4"

MAX. HEIGHT OF PROPOSED STRUCTURE FROM EXISTING BUILDING

EXISITING RAILING

ZONING ANALYSIS

ZONING DISTRICT- H-3-65

YEAR BUILT- 1894

HEIGHT OF BUILDING AS PER ARTICLE 13

ALLOWABLE- 65' (FROM MEAN GRADE)

PROPOSED- 64'-10" (FROM MEAN GRADE)

FRONT SET BACK AS PER SECTION 16-7

REQUIRED MINIMUM- 4'-6"

PROPOSED MINIMUM- 25'-6"

REAR SET BACK AS PER SECTION 16-7

REQUIRED MINIMUM- 4'-6"

PROPOSED- 5'-0"

INCREASE OF HEIGHT AS PER SECTION 16-7

ALLOWABLE- 10'

PROPOSED- 9'-4"

Site Section

Site SectionNot to Scale


July 6, 2017

Area of Proposed Work

349 Commonwealth Ave 347 Commonwealth Ave351 Commonwealth Ave

EXISTING BRICK CHIMNEY

EXISTING SKYLIGHT TO BE RELOCATED TO TOP OF NEW ROOF

EXISTING CHIMNEY

Elevations- Existing

Existing South ElevationScale: 1/8” = 1’-0”


July 6, 2017


EXISTING SKYLIGHTS TO BE RELOCATED TO PROPOSED PENTHOUSE ROOF

9' -

4"


NEW WOOD DOOR W/ SIDELIGHTS PAINTED BLACKINFILL EXISTING PARAPET WALL BEYOND

NEW STANDING SEAM COPPER CLAD PENTHOUSE

TOP OF PROPOSED PENHOUSE ROOF

TOP OF EXISTING ROOF

NEW WOOD DOUBLEHUNG WINDOW PAINTED BLACK

EXTEND BRICK PARTY WALL

COPPER FASCIA

347 Commonwealth Ave351 Commonwealth Ave

Elevations- Proposed

Proposed South ElevationScale: 1/8” = 1’-0”


July 6, 2017



EXISTING BRICK CHIMNEYEXISTING BRICK PARTY WALL


Elevations- Existing

Existing North ElevationScale: 1/8” = 1’-0”


July 6, 2017


EXISTING SKYLIGHTS TO BE REUSED AND RELOCATED

9' -

4"


PROPOSED STANDING SEAM COPPER CLAD PENTHOUSE

NEW WOOD DOUBLEHUNG WINDOWS PAINTED BLACK

EXTEND EXISTING BRICK CHIMNEY TO 2' ABOVE PROPOSED MAX. ROOF HEIGHT


2' -

0"

Elevations- Proposed

Proposed North ElevationScale: 1/8” = 1’-0”


July 6, 2017

HEAD

CHECKRAIL

SILL

HEAD

SILL

WINDOW TYPE A- 3'-9" x 4'-8" WINDOW TYPE B - 4'-2" x 5'-10"

NOTE--PROPOSED WINDOWS TO BE WOOD PAINTED BLACK (TYP)-PROPOSED WINDOWS TO MATCH SIZE OF EXISTING WINDOWS ON FOURTH FLOOR- DOUBLE HUNG WOOD WINDOWS BY MARVIN

NOTE--PROPOSED DOOR TO BE WOOD PAINTED BLACK (TYP)-FRENCH OUTSWING WOOD DOOR BY MARVIN

6' WIDE x 7' TALL DOOR

1'-8" WIDE x 7' TALL SIDELIGHTS

Window & Door Details


July 6, 2017


73' - 10 3/4"

20' -

4 9

/16"

18' -

4 9

/16"

Bath

Bathroom

Storage

EXISTING SPIRAL STAIRCASE TO BE REMOVED

Master Bedroom

Guest BedroomKitchen

Living Room

EXISTING STAIR FROM THIRD FLOOR TO FOURTH

DN

UP

PROPOSED STAIRCASE TO PENTHOUSE

Kitchen

Living Room

Bedroom 1

Bedroom 2Bath

Bathroom

Storage

DN

Plans

Existing Fourth Floor PlanScale: 1/8” = 1’-0”

Proposed Fourth Floor PlanScale: 1/8” = 1’-0”


July 6, 2017


EXISTING SKYLIGHT HATCH TO BE REMOVED

EXISITING SKYLIGHTS TO BE REUSED

SKYLIGHT TO BE REMOVED CHIMNEYCHIMNEYCHIMNEY

CHIMNEY CHIMNEY

CHIMNEYEXISTING RUBBER ROOF

EXISTING RUBBER ROOF

EXISTING SKYLIGHTS TO BE RELOCATED TO PROPOSED PENTHOUSE ROOF

25' - 6" 43' - 4 3/4" 5' - 0"

30' - 10 3/4" 38' - 0" 5' - 0"

8' -

2"

11' -

2 9/

16"

EXISTING CHIMNEYS

1/4" SLOPE 1/4" SLOPE

PROPOSED PENTHOUSE ROOF

EXISTING WOOD ROOF DECK


NEW BLACK EPDM ROOF

EXISTING CHIMNEY

EXISTING CHIMNEY

EXISTING CHIMNEY


EXISITNG AREA OF SKYLIGHT HATCH TO BE FILLED IN TO MATCH EXISTING DECK

Plans

Existing Roof PlanScale: 1/8” = 1’-0”

Proposed Roof PlanScale: 1/8” = 1’-0”


July 6, 2017


DN

43' - 4 3/4" 5' - 0"

8' -

2"

11' -

2 9/

16"

5' - 0"38' - 0"

25' - 6"

PROPOSED STAIRCASE TO FOURTH FLOOR

EXISITNG AREA OF SKYLIGHT HATCH TO BE FILLED IN TO MATCH EXISTING DECK

EXISTING CHIMNEY

EXISITNG CHIMNEY EXISTING CHIMNEY

WINDOW TYPE A

WINDOW TYPE B

EXISTING RUBBER ROOFExisting Roof Deck

Exercise Area

Her Closet

His

Clo

set

Bathroom

Master Bedroom

EXISTING CHIMNEY EXISTING CHIMNEY

EXISTING CHIMNEY

30' - 11"

BRICK WALL

BRICK WALL

STANDING SEAM COPPER CLAD SIDINGSTANDING SEAM COPPER CLAD SIDING

Plans

Proposed Penthouse Floor PlanScale: 1/8” = 1’-0”


July 6, 2017


Proposed Perspectives

Proposed Perspective Looking North West on Commonwealth Ave

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Mock-Up Looking North East on Commonwealth Ave


July 6, 2017



Proposed Perspective Looking South West Proposed Perspective Looking South


July 6, 2017



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Mock-Up Looking South East on Mass. Ave


July 6, 2017



Mock-Up Looking North @ Existing Roof Deck

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Proposed Penthouse Addition At 349 Commonwealth Ave ......TOP OF PROPOSED PENHOUSE ROOF TOP OF...

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