COF 2023-192
A presentation titled Central Square City Lots Study
Held So Far
Upcoming DRAFT OBJECTIVES for city-owned land Create more housing in Central Square, particularly affordable housing. Accommodate cultural programs, events, and spaces. Increase parks and open spaces. Create high quality community services in Central Square. Provide opportunities for social services to expand and co-locate. Address city office and collaboration space needs. Support ongoing infrastructure improvement projects. Meet parking needs & include transportation demand management. Plan for future opportunities to connect to adjacent private lots. 10 PROJECT SITES 1.Leverage the potential of large city-owned sites Structural study suggests only 1-2 additional levels may be built on top of existing garage and building. Recent analysis shows the garage may have capacity and is mostly used by monthly parkers. 260 Green St Cambridgeport 55,828 257 C-3 4 2 MIXED
Garage Library
25,686 19,824
Garage Library
Parking Garage
●Improve the library ●Introduce significant affordable housing units ●Maintain or expand parking ●Demolish and rebuild or renovate portions of the building and expand strategically
Highlights From Analysis and Input So Far
Expanded 260 Green St 260 Green Street 1 : Library Renovation Preserve existing library and expand up two floors Demolish existing garage Potential for 15 stories of housing Basement, ground floor, plus two levels of parking
Retail / active use on Pearl St
2: New Library Demolish and replace Library and
Green Street garage
Expanded library or office/community space in new ground floor Potential for 15 stories of housing Basement, ground floor, plus two levels of parking garage 305,460 135 140-150 0.12 359,600 185 180-200 0.12 H-Mart and other retailers rely on nearby parking. Buildings of up to 7 stories (80 feet) are allowed by zoning; up to 15 stories may be possible under the passed
Affordable Housing Overlay
amendment. Important public realm considerations include Graffiti Alley, current use as Starlight Square, the Farmer’s Market, and other events. (Lot 5) 33,715 23 BB Lot 5 ●Flexible arts and marketplace uses ●Non-profit and commercial space or parking
Highlights From Analysis and Input So Far
Flexible Arts &
Market Space
I would love to see this use here! 1 : Cultural Space Standalone cultural programming Links to Graffiti Alley and a potential future play street on Norfolk Maintains existing HMart parking and loading space 20,000 23 HMART
GRAFFITI ALLEY
FUTURE PLAY
STREET
INCUBATOR RETAIL SPACES
CENTRAL OPEN 272,500 170-180 2: Maximize Affordable Up to 15 stories of affordable housing
Maintain access to HMart, Graffiti
Alley, and existing retail Mix of public and resident parking 4: Cultural Space with Office Above Similar to at left, but three levels of office above cultural programs, instead of residential above. 3 : Cultural Space with
Housing Above
Up to 15 stories of affordable housing above retail and performance space South-facing outdoor plaza
Preserves access to HMart, Graffiti
Alley, and existing retail One level of underground parking 203,000 120-130 0.11 117,700 0.11 Development is limited to certain areas of the site due to underground stormwater retention tanks and an access easement granted to Market Central for garage access and loading. Only the middle section (~⅓) of the lot is buildable in the future. Surrounded by high density new housing and retail. (Lot 6), The Port 27,799 Unknown
Assessed Value
40 Lot 6 Easements
Market Central Perpetual
Access/Loading Easement
City of Cambridge
Parking Lot 6
Stormwater Tank Infrastructure Lot 6 ●High-density affordable housing. ●Open space / public plaza. ●Additional stormwater retention storage. 1 : Affordable Housing Up to 8 stories of affordable housing shown since structured parking is not feasible Maintains utilities infrastructure and access easement to Market Central garage 2 : Open Space 170’ x 170’ / 0.66 acres
Lawn: 80’ x 140’
500-1500 people in an event 20-30 tents + 5 trucks 3 : Maintain as Parking 40 spaces 91,300 70-80 0.66 2. Bring new life to existing buildings The City recently acquired this building with the approval to use it for municipal uses. The building has historic value and limited expansion potential. 689 Massachusetts Ave Mid-Cambridge 33,456 10,101 $15,112,200
Assessed Value
3 ●City offices ●Community services ●Cultural spaces ●Relocation of the Central
Square Library branch
Amenities/
Services / One-
Stop-Shop Relocation Municipal 2 : Ground Floor Public
Uses with Offices
Stories above grade 3 Total building area (GSF) - 34,403 SF
Offices - 16,236 SF
Public Facing Use - 5,476 SF
Total Building Area (NSF) -
28,757 SF
Public Facing
Use
Public Facing
Use Classroom 1 : Library with Stories above grade 3 Total building area (GSF) - 34,403 SF Total library ara (NSF) (Level 01 & 02) - 15,315 SF. 260 Green Library NSF - 13,699 SF
Office - 6,248 SF
Total Building Area (NSF) -