Vincent v. Rent Control Board of Cambridge

There is a controlling date: January 1, 1969. On that date unit no. 1 in 109 Windsor Street, Cambridge, was lawfully in use as a neighborhood health clinic. Unit no. 2 became incorporated in the health clinic later, on August 1, 1969, and Unit no. 4, later still, on April 1, 1971. At those times, Cambridge did not require a permit to remove premises from residential use. In the summer of 1976, the clinic moved out of 109 Windsor Street and the three units underwent conversion to apartments. The question for decision is whether the resulting apartments are subject to rent control or whether…