An undeveloped lot in Portland's popular Munjoy Hill neighborhood was the perfect spot for multi-unit housing. With cold Maine winters and increasing fuel prices, the client sought to create a building that would keep heating costs low without sacrificing comfort or significantly increasing construction costs.
This four-story apartment project in Portland's Munjoy Hill neighborhood is one of the most high-tech buildings in Maine. The three-unit building has a two-story owner's apartment on the top two levels and requires no furnace for heating the 4,500 square foot space and produces 9,600 kilowatt hours of solar electricity annually.
This three-unit apartment building is within walking distance of Portland's East End restaurants and shops and close to public transportation.
Budget / Economy
At around $140/sf, construction costs were similar to a traditionally heated building, but monthly utility bills are negligible.
With super tight construction, insulation that achieves an R-value of 43, air-source heat pumps, and a heat recovery ventilation system, the three-unit building consumes no fossil fuels.
A 30-panel rooftop solar array provides more electricity each year than the entire building consumes, and 90 solar hot water tubes heat three hot water tanks.