This is on East Springfield Street, in the South End. It was built in the 1960's. It was supposed to be the proto-type of a new style of affordable housing.
I can't remember the rest of the details, which is why I ask.
This book explains the prototypical house construction as well as a pilot rehabilitation project.
The South End row house and its rehabilitation for low-income residents : the report on low-income housing demonstration project MASS LIHD-3
Robert B. Whittlesey
South End Community Development, 1969
The politicians threw these projects under the bus in favor of more bulldozer renewal for kickbacks and racial pandering for votes. That's how Methuen Manor and Villa Victoria got built.