Deep Energy Retrofit: Treehouse at Easthampton Village
February 27, 2026
Treehouse at Easthampton Meadow, created through a partnership between Beacon Communities and the Treehouse Foundation, is a 60-unit mixed-income, intergenerational community of family housing for households who have adopted children out of the foster system and senior households who agree to mentor the children. The deep energy retrofit project is focused on enhancing energy efficiency and sustainability for the 23-building campus, with significant projected energy savings and emissions reductions. The work will result in much improved indoor air quality and thermal comfort: units will be less drafty, warmer in the winter and cooler in the summer.
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 MassHousing, MHP, LISC, and EOHLC
- 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
- Air Sealing
- Rooftop Solar
Energy Outcomes
- 40% modeled reduction in carbon emissions
- 51% modeled reduction in energy consumption