Thornton heights commons

South portland, MAINE

CLIENT
South Portland Housing Development Corporation

ZACHAU’S ROLE
Construction Manager

ARCHITECT
CHA Architects

Transforming the former St. John’s Church site in South Portland, Thornton Heights Commons brings new affordable housing and commercial space to the community. Located at 611 Main Street, the four-story mixed-use development includes 42 apartments, ground-floor retail space, a satellite police station, outdoor gathering areas, and parking. Developed in collaboration with South Portland Housing Development Corporation, the project incorporates sustainable features such as triple-glazed windows, cross-laminated timber (CLT) components, high-efficiency heating systems, and rooftop solar panels. Granite salvaged from the former church was repurposed, preserving a connection to the site's history. The redevelopment brings new life to a former brownfield site while creating opportunities for housing, business, and community connection.