Southfield is a planned community

Planned community

A planned community, or planned city, is any community that was carefully planned from its inception and is typically constructed in a previously undeveloped area. This contrasts with settlements that evolve in a more ad hoc fashion. Land use conflicts are less frequent in planned communities since...

 located on the former South Weymouth Naval Air Station in South Weymouth, Massachusetts. It is a 1400 acres (6 km²) site that overlaps three towns in Massachusetts: Weymouth

Weymouth, Massachusetts

The Town of Weymouth is a city in Norfolk County, Massachusetts, United States. As of the 2010 census, Weymouth had a total population of 53,743. Despite its city status, it is formally known as the Town of Weymouth...

, Abington

Abington, Massachusetts

As of the census of 2000, there were 14,605 people, 5,263 households, and 3,747 families residing in the town. The population density was 1,469.1 people per square mile . There were 5,348 housing units at an average density of 538.0 per square mile...

, and Rockland

Rockland, Massachusetts

Rockland is a town in Plymouth County, Massachusetts, United States. The 2010 census records its population at 17,489. As of December 31, 2009, there are 11,809 registered voters in the community.-History:...

. Southfield will contain 2,855 housing units and up to 2000000 square feet (185,806.1 m²) of commercial space at full build-out.it is expceted to open 2027.