MassDevelopment will negotiate a development agreement with Lexington-based Evergreen Village Collaborative for 120 units of housing in Devens’ Grant Road neighborhood, a roughly 35-acre portion of the 4,400-acre community.

Housing – including single-family homes, duplexes, townhomes, and multifamily buildings – is allowed under existing zoning. In April, the Massdevelopment issued a request for qualifications (RFQ) for a developer or multiple developers to build and market up to 120 residential units. The state housing agency will sell the development sites to Evergreen Village Collaborative, which has proposed a diversity of unit types arranged in a walkable neighborhood.

Evergreen Village Collaborative plans to build about 40 large and small single-family homes, 40 duplex and townhome units and 40 rental apartments. Twenty-seven units will be affordable- to moderate-income households, defined as 80 to 100 percent of area median income.

The architect-designed homes will be arranged around public open spaces and will be zero-net-energy "capable," meaning that the addition of photovoltaic panels or other features could bring these homes to zero-net energy use.

Devens bylaws allow maximum residential development of 282 units, of which 140 have already been renovated or built. Over the past two years, developers have built and sold 20 zero-net-energy homes in Devens, part of a pilot project to provide replicable examples of current and innovative sustainable buildings that are reasonably priced and practical.