Habitat for Humanity of Greater Portland will break ground Thursday on a 13-house subdivision to be built off Broadturn Road in Scarborough.

The 20-acre project is the largest for the local nonprofit organization and also includes 15 acres of conservation land with trails open to the public.

The project is financed by Gorham Savings Bank and the Genesis Community Fund. Project Sponsors include Bank of America and Idexx.

Construction of a new street, Carpenter Court, begins this week and Habitat’s staff and volunteers will start construction in early September after the completion of its eight-unit development in Freeport. The group plans to build all 13 homes within three years.

Of the 13 single-family homes, eight will be Habitat program homes and five will be affordable homes sold through the Scarborough Housing Alliance. All homes will be affordable and will be 1,200 to 1,400 square feet with 3 or 4 bedrooms each.

More information about the homes is available at habitatportlandme.org.