457 beacon street, boston, massachusetts

To BBACApplicationPenthouse

Sheet Number:

Scale: 1/4" = 1'-0"

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457 Beacon Street, Boston, MassachusettsApplication to BBAC For Penthouse Structure, January 24, 2018

Beacon Street Facade Viewed from WestBeacon Street Facade Viewed from West

Beacon Street Facade Viewed from Northeast Side Of Beacon Street

Beacon Street Facade Center View

(All Photos Taken in 2017)

457 Beacon

457 Beacon

457 Beacon


Sheet Number:

Scale: 1/4" = 1'-0"

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Google Satellite View of 457 Beacon Street

Google Satellite View of 457 Beacon Street

Google Map View of 457 Beacon Street

PenthouseApplicationTo BBAC

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Sheet Number:

Scale: 1/4" = 1'-0"

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457 Beacon Street

457 Beacon Street

457 Beacon Street

Center View of 457 Beacon Street from Public Alley 414

View Looking East of Rear of 457 Beacon Street from Public Alley 414

View Looking West of Rear of 457 Beacon Street from Public Alley 414


Photos Showing Existing Conditions of Rear of 457 Beacon Street


Sheet Number:

Scale: 1/4" = 1'-0"

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Photos Showing Existing Conditions of Roof of 457 Beacont Street


View of 457 Beacon Street Roof Looking Northeast

View of 457 Beacon Street Roof Looking East

View of 457 Beacon Street Roof Looking Southwest

View of 457 Beacon Street Roof Looking Southeast View of 457 Beacon Street Roof Looking West

with copper flashing cap(N) Replace existing aluminum flashing cap

Association of the Back BayMeeting with Architectural Committe of the NeighborhoodHeight of Penthouse Structure Reduced by 12" per 3/6/18

Proposed Penthouse Addition - Allowed Per Zoning Code_____________________________________________(N) Standing Seam Copper on Front Facade with CopperFacing on Front and Side of Window & Door Bays

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Top of Proposed Penthouse: 62.0' Above Avg. Grade

62'

2'-2 1/2"

8'-3"

Windows(N)

Windows(N)(N)

Windows

53'-9

"

53'-9

"

59'-9

1/2

"

24'

Mean Grade53.75' Above


(Demo)

(Demo)

(Demo)(Demo)

Mean Grade Level

(E) Fire Escape Balconies

_____________________Proposed Wood Windows

Proposed Beacon Street Elevation@ Scale: 1/4" = 1'-0"Scale: 1/4" = 1'-0"1 Existing Beacon Street Elevation

(E) Skylight

(E) Metal Railing for Roof Deck

(E) Skylight(E) Headhouse for Stairs to Roof

Mahogany; Paint Gloss Black(N) Windows & Door Sashes Fabricate from

(N) Copper Mouldings for Window & Door Trim

to be Repointed

(N) Extend Brick Party Walls

(E) Chimney for 457 Beacon Street




fabricated from mahogany; paint gloss blackfloor windows with double-hung windows(N) Replace existing double-hung fourth

24'

2'-7 1/4"

10'-8 1/8"

10'-10 1/2"

11'-1"

11'-8 1/2"

9'-8"

2'-10 3/8"

Front Top Edge of Existing Building

Top of Front Edge of Roof of Proposed Penthouse: 59.79' Above Avg. Grade

Floor of Proposed Penthouse

Fourth Floor

Third Floor

Second Floor

First Floor

Lower Level

Mean Grade Level

Sheet Number:

Scale: 1/4" = 1'-0"

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6'-0 1/2"& Air Handler (Demo)(E) AC Condenser


Height of Penthouse Structure Reduced by 12" per 3/6/18Meeting with Architectural Committe of the NeighborhoodAssociation of the Back Bay

Proposed Penthouse Addition - Allowed Per Zoning Code_____________________________________________(N) Standing Seam Copper on Rear Facade

(N) Copper Cap to be Installed on Top of Rear Wall

24'

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Top of Proposed Penthouse: 62.0' Above Mean Grade

(N) Standing Seam Copper on Rear Wall

10'-10 5/8"

62'

(N) Copper Mouldings for Window & Door Trim

(N) Windows & Door Sashes Fabricatedfrom Mahogany; Paint Gloss Black


Sloped Copper Hood Over Doorand Window


Windows(N)



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BBAC6

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Scale: 1/4" = 1'-0"

Sheet Number:

Floor of Proposed Penthouse

Fourth Floor

10'-7 3/4"

(N) Powdered-Coated Iron Railing in Gloss Black


(N)WindowsWindows

(N)



Deck (Demo)(E) Metal Railing and Wood Roof

(E) Headhouse for Stairs to Roof

(E) Skylight

Existing Rear Elevation Facing Public Alley 4141 Scale: 1/4" = 1'-0"

Mean Grade Level

(Demo)

(Demo)

51.12' AboveMean Grade

24'

51'-1

3/8

"

51'-1

3/8

"

_____________________Proposed Wood Windows

2 Scale: 1/4" = 1'-0"


fabricated from mahogany; paint gloss blackfloor windows with double-hung windows(N) Replace existing double-hung fourth

10'-7 3/4"

10'-10 1/2"

11'-1"

11'-8 1/2"

9'-8"

2'-10 3/8"

Rear Top Edge of Existing Building

Fourth Floor

Third Floor

Second Floor

First Floor

Lower Level

Mean Grade Level


Proposed Rear Elevation Facing Public Alley 414

29'-6 5/16"

58'

Line of Sight Diagram

Zoning District: H-3-65Year Built: 18????Height of Building As Per Article 13: Allowable: 65' From Mean Grade Proposed: 63' From Mean GradeExisting F.A.R.: 7316 Square Feet(As measured from outside of existing masonry structure)

Zoning Analysis

Proposed Penthouse Structure: 648 Square FeetProposed F.A.R.: 7964 Square Feet

(N) Standing Seam Copper Facing & Copper Flashing Cap

(E) Brick Party Wall

62'

8'-3"(E) Top Edge of Beacon Street Facade


Beacon Street

SIGHTLINE

5'-8"

(E) Window Bay on Front Facade

12'-1"47'-6"12'-1"

Sidewalk & Curb Sidewalk & Curb

(E) Decorative Copper Caps at East and West End of Roof

Line of Mean Grade

13'-7 7/8"

1'-5"

6'-0 1/2"

1 Not to Scale

with Architectural Committe of the Neighborhood AssociationHeight of Penthouse Structure Reduced by 12" per 3/6/18 Meeting

of the Back Bay

(N) Skylights

(N) Standing Seam Copper On Exterior Walls

(N) Proposed Penthouse Structure

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(E) Brick Party Wall

10'-10 5/8"

13'-5 1/8"

5'-8"Public Alley 414

(E) Top Edge of Building Facing Public Alley 414

Scale: Not to scale

Date:Revision

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ApplicationTo BBAC

Drawing Title:

Project:

BBAC7

Sheet Number:

SIGHTLINE

(E) Window Bay on Rear Facade


8'-4"Midpoint

3'Sidewalk & Curb

Penthouse

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with Architectural Committe of the Neighborhood AssociationHeight of Penthouse Structure Reduced by 12" per 3/6/18 Meeting

of the Back Bay

of the Back Bay

Height of Penthouse Structure Reduced by 12" per 3/6/18 Meetingwith Architectural Committe of the Neighborhood Association

(N) Standing seam facing

Public Alley 414 Facade

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Mahogany; Paint Gloss Black(N) Windows & Door Sashes Fabricate from

(62.0' Above Mean Grade)(62.0' Above Mean Grade)(N) Copper Cap on Recessed Section of Roof

(N) Standing Seaam Copper on Rear Wall

(N) Copper Cap to be Installed on Top of Rear Wall

penthouse)of roof (set back by 6' from front elevation of(N) Standing seam copper on recessed section

(E) Brick party wall



Copper Facing for Front and Sidewalls ofWindow & Door Bays

Fabricated From Copper(N) Mouldings for Windows & Doors to be

(51.12' Above Average Grade)(E) Highest existing elevation of Public Alley 414 facade


10'-10 5/8"

8'-3"

6'-0 1/2"

(N) Top of Window & Door Bays Flashed in Copper


(E) Highest elevation of Beacon Street Facade

(N) Copper for facing of sidewalls inside sunken deck



(E) Highest elevation of Public Alley 414 facade

(N) Grey EPDM rubber membrane roof to pitch 1/4"

(N) Install new grey EPDM rubber membrane roof and pitch 1/4"

(N) Duct work and insulation in this section

(N) Skylights


(N) Top of Window & Door Bays Flashed in Copper

(N) Install new grey EPDM rubber membrane roof and pitch 1/4"


10'-10 5/8"

18'-0 5/16" 3'-9 1/8"

6'

(N) Duct work and insulation in this section

8'-6"

13'-5 1/8"

10'-10 5/8"

6'23'-6 5/16"

29'-6 5/16"

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Scale: 1/4" = 1'-0"

Sheet Number:

Beacon Street Facade

Copper Facing for Front and Sidewalls ofWindow & Door Bays

(N) Extend Brick Party Walls (N) Extend Brick Party Walls

Proposed Penthouse Addition - Allowed Per Zoning Code_____________________________________________(N) Standing Seam Copper on Front Facade with CopperFacing on Front and Side of Window & Door Bays

with copper flashing cap(N) Replace existing aluminum flashing cap

(N) Front Top Edge of Proposed Penthouse Structure(59.79' Above Average Grade)

(53.49' Above Average Grade)(E) Highest existing elevation of Beacon Steet facade

Scale: 1/4" = 1'-0"

Scale: 1/4" = 1'-0"

Scale: 1/4" = 1'-0" Scale: 1/4" = 1'-0"


Fabricated From Copper(N) Mouldings for Windows & Doors to be

Facing on Front and Side of Window & Door Bays(N) Standing Seam Copper on Front Facade with Copper_____________________________________________Proposed Penthouse Addition - Allowed Per Zoning Code

2Section Penthouse Section Looking East

Penthouse Section Looking West1

Section

Penthouse North Facing Elevation - Beacon Street Penthouse South Facing Elevation - Public Alley 414

(N) Sloped copper hood over door and window

1'-5"

(E) Highest elevation of Beacon Street Facade

13'-8 13/16"

Sklylight

(N)Standing seam copper to face front of parapet wall

(N) Sloped sidewalls faced with standing seam copperin between projecting window & door bays

(N) Copper hood over door and window on south-facing facade of penthouse

(N) Copper for facing of sidewalls inside sunken deck

3'-4"

Beacon Street FacadePublic Alley 414 Facade

(E) Highest elevation of Public Alley 414 facade

6'-0 1/2"

6'-0 1/2"

(N) Skylight

3'-3"

(N) Copper flashing cap to replace aluminum flashing cap

10'-9"

(N) Powder-coated iron railing in gloss black

in between projecting window & door bays(N) Sloped sidewalls faced with standing seam copper

13'-7 7/8"

6'-4"

(N) Copper sidewalls for south-facing deck

24'

(N) Windows & Door Sashes Fabricated fromMahogany; Paint Gloss Black

24'

(N) Replace existing black membrane roof with new

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grey EPDM surface and pitch 1/4"

at rear of building(E) Membrane roof on bay

(N) Sloped copper hood over south terrace

(N) Iron railing, powder coated black

(N) Partially Recessed South Deck(Ipe to be used for deck surface)

(Height Unchanged)(E) Masonry Flues for 457 Beacon Street


(N) Standing Seam Copperon Exterior Walls

(N) Copper Flashing Cap Atop Brick Sidewall(N) PVC Vent Pipes for Baths

Copper Flashing Cap Atop Parapet Wall

(N) SkylightCopper Flashing Cap Atop Parapet Wall

(N) Skylight

(N) Grey EPDM Rubber Membrane Roof

(N) Standing SeamFacing

(N) Copper Flashing Cap Atop Brick Sidewall



Height of Front Wall of Sunken Deck(N) AC Condensing Units; Set Below

roof deck for AC condensing units(N) Copper enclosure within sunken

existing bow at front of building(E) Rubber membrane roof atop

Sunken roof deck; no railing required(Ipe to be used for deck surface)

(E) Slate & copper caps on pedimentsatop fourth floor windoes

(decking material not depicted)-treated sleeper resting on IPDM covering(N) Install Ipe decking material atop pressure

(N) Sloped copper-clad sidewalls astridewindow & door bays

(N) Copper flashing cap atop balcony wall

(E) Front edge of building facing Beacon Street(Elevation height unchanged)

(N) Projecting window & door bays; clad in copper

Membrane Roof(E) EPDM Rubber

(E) Masonry Flues for 457 Beacon Street(E) Inactive Flues Now Used for Venting Bathrooms

(E) Masonry Flues for 457 Beacon Street

(E) ACCondensingUnit &Air Handler

(E) Roof Deck

(E) Roof Deck

(E) Skylight

(E) Skylight

(E) Vent Pipes

(E) EPDM Rubber Membrane Roof

(E) Vent Pipes

(E) Vent Pipes (E) Headhouse

(E) Rear Window Bay Facing Public Alley 414

(E) Front Window Bay Facing Beacon Street

(E) Masonry Flues for 455 Beacon Street(E) Masonry Flues for 455 Beacon Street

StreetFourth Floor Window Projections Facing Beacon(E) Slate and Copper Capped Pediments Atop

(N) Skylight

(E) Skylight

(N) Skylight(N) Skylight

(N) Skylight

(N) Skylight

6'

Existing Roof Plan

Proposed Roof Plan

Scale: 1/4" = 1'-0"

Scale: 1/4" = 1'-0"

PenthouseApplicationTo BBAC432

Unit

AC

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ACAC

UnitUnit1AC

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Scale: 1/4" = 1'-0"

Sheet Number:

58'

58'

24'

1'-6 5/8" 12'-0 1/4"

58'

6'-4"

3'-3"23'-10 7/8"1'-6"

12'-10 1/4"30'-10 7/8"

58'

3'-5 5/8" 10'-9 1/4"

10'-9 1/4"3'-5 5/8"

24'

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(N) Iron railing, powder coated black

grey EPDM surface and pitch 1/4"(N) Replace existing black membrane roof with new

Scale: 3/8" = 1'-0"

Section2 2

Section

1Section

1Section

Proposed Penthouse Plan

(N) AC Condensing Units; Set BelowHeight of Front Wall of Sunken Deck

(E) Inactive Flues Now Used for Venting Bathrooms

(E) Masonry Flues for 455 Beacon Street(E) Masonry Flues for 455 Beacon Street(Height Unchanged) (Height Unchanged)

(E) Masonry Flues for 457 Beacon Street (E) Masonry Flues for 457 Beacon Street(Height Unchanged) (Height Unchanged)


King-size bewith 6-drawerbase

Sunken RoofDeck

Unit1AC

Unit2AC AC

3Unit

AC4Unit

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Scale: 3/8" = 1'-0"

Project:

BBAC10

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NightStand Stand

Night

Skylight Skylight

Skylight

Skylight

SunTube

TubeSun

24'

58'

3'-5 5/8" 10'-9 1/4"

10'-9 1/4"3'-5 5/8"

58'

30'-10 7/8" 12'-10 1/4"

1'-6" 23'-10 7/8" 3'-3"6'-4" 12'-0 1/4"

(E) Slate & copper caps on pedimentsatop fourth floor windoes

(E) Rubber membrane roof atopexisting bow at front of building

(N) Copper enclosure within sunkenroof deck for AC condensing units

1'-6 5/8"

Sunken roof deck; no railing required

(E) Membrane roof on bayat rear of building

(N) Install Ipe decking material atop pressure-treated sleeper resting on IPDM covering(decking material not depicted)

(N) Projecting window & door bays; clad in copper

(N) Sloped copper-clad sidewalls astridewindow & door bays

(N) Sloped copper hood over south terrace(N) Copper flashing cap atop balcony wall

(E) Front edge of building facing Beacon Street(Elevation height unchanged)

Stair201 Landing

2-door base cab.with book shelves above

1'

Master206 Bath

208 RoomLaundry

203 BedroomMaster

209 SouthTerrace

NorthTerrace209

WaterCloset207206 Master

Closet

Master BathVestibule204

202 MBRVestibule

abovelinen cab.facedw

ith glassbase cab.3-draw

er


Sheet Number:

Scale: 1/4" = 1'-0"

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Photos of Framed Mockup of Proposed Penthouse StructureFor 457 Beacon Street

View of Front Mockup Looking Southeast

View of Rear Mockup Looking Northwest

View of Mockup From Front Northwest Corner Looking Southeast

View of Rear Mockup Looking West

View of Rear Mockup Looking Northeast

View of Front Mockup Looking West

(All Photos Taken January of 2018)


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Date:Revision

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Not to Scale

Sheet Number:

Survey Map for 457 Beacon StreetNot to Scale

Exterior view of replacement mahogany sashes forfront and rear windows on Unit 4, 457 Beacon Street,Boston, MA 02115

Sashes and exterior mouldingsto be painted gloss black

Original exterior mouldings to bepatched and repainted.

to protect against high winds.of low E glass with laminated layerAll glazing in new sashes to be

two and three.window bay on floors one,which still remain in the frontare to replicate original sashesRails and stiles on new sashes

2 1/2"

2 1/2"

2"

3 1/2"

13

Scale: 1" = 6"


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457 beacon street, boston, massachusetts

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