J.J. Carroll Apartments

Brighton, MA
150,000 Sq. Ft. Affordable Senior Housing Project

The 6-story, 150,000 square foot affordable senior housing project includes 142 units and an 11,000 square foot Program for an All-Inclusive Care for the Elderly (PACE) Center. 2Life Communities decided to pursue Passive House Certification through PHIUS after the Passive House feasibility study indicated that the performance standard could be met. This initial study galvanized the owner’s decision and design team commitment to the end goal. Mechanical systems include central energy recovery ventilation, all electric Variable Refrigerant Flow (VRF) heating and cooling and a central, gas-fired domestic hot water plant. Petersen Engineering performed the WUFI energy modeling for the project. The project has received design certification through PHIUS+ 2018.


On track for Passive House certification through PHIUS+ 2018
Anticipated Energy Use Index 22.5 KBTU/SF/Year

Project Details

Project Size

150,000 SF

Completion Date



Mass Design Group


Dellbrook | JKS


2Life Communities