BOSTON’S FIRST GROUND-UP MASS TIMBER PASSIVE HOUSE PROJECT INTEGRATES INNOVATIVE 5-IN-1 WALL ASSEMBLY.
Currently under construction and on track for occupancy in late 2022, 11 E Lenox is a seven-story, 34-unit multifamily building in Boston’s Roxbury neighborhood. The project was conceived in 2019, when developer Haycon was looking for a cost-effective and environmentally sustainable solution to stay within Boston’s height limits for mid-rise construction. The building’s innovative design removes the need for a podium or additional fireproofing, resulting in a sturdy, fire-resistive, energy-efficient, comfortable and cost-effective structure that’s beautiful inside and out.
This project is the first ground-up mass timber Passive House project in Boston. Well before the launch of the Boston Mass Timber Accelerator Program, mass timber was selected for the project to help achieve its sustainability goals. Building with mass timber results in lower embodied carbon compared to other traditional materials. But the project team didn’t stop there. The project is pre-certified and expects to meet PHIUS+ 2018 standards, which require advanced energy efficiency measures that benefit the building owner and occupants through passive design and high-performance construction methods.