Built in 1890–91, it is the city's oldest surviving school, and a prominent feature of its urban core.

[1] The Green Street School is located in a densely built residential area south of the commercial business district of Somersworth, on a lot bounded by Union, Green, and School streets.

It is two stories in height, with a hip roof that has gabled wall dormers on its long faces.

The main roof cornice exhibits Queen Anne style brick corbelling.

It was built to serve a largely immigrant French-Canadian population settled in the surrounding neighborhood.