Multifamily Programs

As part of its commitment to decarbonizing affordable housing, the Climate Bank is supporting several deep energy retrofit projects aimed at preserving existing affordable housing. These demonstration projects integrate energy efficiency, electrification, clean energy, and climate resilience measures. Through this initiative, the Climate Bank is showcasing how strategic investments in energy efficiency and clean energy can enhance housing quality and protect long-term affordability.

Case Studies

Treehouse at Easthampton Meadow

A photos of homes and residents of Treehouse at Easthampton Meadow

Treehouse at Easthampton Meadow is a deep energy retrofit project focused on enhancing energy efficiency and sustainability across a residential community built in 2006. The development consists of 23 one- and two-story buildings along with a community center, totaling 60 residential units.

Municipality	Easthampton
Project Type	Deep Energy Retrofit
Year Built	2006
Year of Retrofit	2026
Community/Building Type	23 one and two-story buildings and a community center
Units	60 (54 affordable)
Financing Breakdown	$5 million in MCCB climate retrofit financing $2 million in other MassHousing products Other Sources $714,000 in LEAN funding from Mass Save $200,000 in Community Preservation Act funding from the City of Easthampton $3 million Affordable Housing Decarbonization Grant from the Massachusetts Department of Energy Resources $750,000 Climate Ready Housing Grant from EOHLC and MassHousing Additional project financing includes state low-income housing tax credits and Affordable Homes Act resources from the Executive Office of Housing and Livable Communities
Improvements	Electrified Heating & Cooling Electrified Hot Water Systems New insulation Air sealing Rooftop Solar
Energy Outcomes	51% modeled reduction in energy consumption 40% modeled reduction in carbon emissions

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Brian J. Honan Apartments

A photo of the Brian J. Honan Apartments in Boston (Allston)

The Brian J. Honan Apartments is a deep energy retrofit project focused on a series of multifamily residential buildings constructed in 2007. The project encompasses nine side-by-side three-story duplex buildings, providing 50 housing units.

Municipality	Boston (Allston)
Project Type	Deep Energy Retrofit
Year Built	2007
Year of Retrofit	2026
Community/Building Type	9 side-by-side three-story duplex buildings
Units	50 (all affordable)
Financing Breakdown	$8 million in MCCB climate retrofit financing $9.8 million in other MassHousing products Other Sources $2 million Affordable Housing Decarbonization Grant from the Massachusetts Department of Energy Resources $1.6 million City of Boston's Retrofit Fund $736,000 LEAN funding from MassSave $150,000 from the Massachusetts Clean Energy Center $63,000 in funding from Liberty Mutual $2.5 million Climate Ready Housing Grant from EOHLC and MassHousing Additional project financing includes state low-income housing tax credits and Affordable Homes Act resources from the Executive Office of Housing and Livable Communities.
Improvements	Indoor Air Filtration Electrified Heating & Cooling Electrified Hot Water Systems New Insulation Rooftop Solar
Energy Outcomes	47% modeled energy cost savings 51% modeled reduction in carbon emissions 62% modeled reduction in energy consumption

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