The Elm Street/Round Hill Historic District is a local historic district in the city of Northampton, Massachusetts. Established in 1994 along one mile of Elm Street it was expanded to include Round Hill Road in 2012. There are 139 buildings ranging in style from early 18th century colonial to Modern and International style. The first lots on what is now Elm Street (from Main Street to Round Hill) were granted between 1659 and 1661. Catholic Churches punctuate each end of the district.