Pearl Place Apartments in Portland, Maine.

Pearl Place Apartments



Thornton Tomasetti served as the sustainability consultant and LEED for Homes Provider Quality Assurance Designee for two new wood-framed residential buildings that total 61,000 square feet. Building one is 25,500 square feet over four floors and building two is 35,500 over five floors for a total of 60 units. Offered as affordable housing, the units are certified LEED for Homes Gold and are the nation’s first multi-story residential developments to receive this designation under the LEED for Homes Mid-Rise Pilot Program. The buildings are also the only affordable housing development in the United States to earn a Special Commendation for an Outstanding Residential Project from the U.S. Green Building Council.

The project team used locally sourced materials, high-durability brick and metal cladding, low-VOC paints and adhesives, Marmoleum flooring in bathrooms and kitchens, carpeting with high recycled content, high-efficiency plumbing fixtures, and Energy Star windows and appliances to achieve the owner’s goals. Careful attention was paid to maximizing all opportunities for energy savings both during construction and throughout the lifecycle of the structures. The finished units earned a Home Energy Rating Score of 61, which equates to 39 percent more efficiency than a code building.

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