Castle Square Apartments was built in the 1960s as part of urban renewal. Hundreds of tenement buildings were knocked down in Boston's South End to make way for 500 apartments for low-income people.
In the early 1990s, Castle Square experienced a rebirth when residents led a grassroots effort to take over the property and preserve it as affordable housing in perpetuity.
Now, twenty years later, residents are leading a trailblazing green renovation that will result in energy savings that have never been achieved on existing buildings in the U.S.
