The Town Center Historic District encompasses the historic village center of South Hampton, New Hampshire. Its main focus is the town common, on Main Avenue, and it extends along Main Avenue south to the Massachusetts state line and north to the Nettle Hiller House, and westerly along Hilldale Avenue. It includes a cluster of civic buildings that are predominantly Greek Revival in character, including the town hall, Baptist church, and Barnard School, all of which were built during the 1830s. The residential character of the area is significantly early 20th-century in character, due to a 1912 fire that destroyed a number of houses facing the common.