District 7 School (Groton, Massachusetts)  The District 7 School is a historic school building at 366 Chicopee Row in Groton, Massachusetts. The one-room single story brick building was built c. 1833, and is one of four surviving district schools (of which it is the best-preserved) in the town. The building has only very limited vernacular Federal styling, but has retained interior finish work from both the early and late 19th century. The property includes a 19th-century outhouse. The building served as a school until 1916, after which time it was taken over by a community non-profit for use as a community center. The schoolhouse was listed on the National Register of Historic Places in 2008.