Sussex County Courthouse Historic District is a historic courthouse complex and national historic district located at Sussex, Sussex County, Virginia. The district encompasses four buildings in the complex: the clerk's office (1924), the court house, the County Office Building, jail and the Dillard House (c. 1800). Other buildings are the mid-19th century county treasurer's office and the John Bannister House. The county courthouse building was built in 1828 by Dabney Cosby, and is a two-story, seven bay, Jeffersonian Classicism style brick building. It has a cross-gable roof with cupola and features a three-bay arcade, one-bay deep with five rounded arches, on its front facade. A six bay brick addition was built in 1954. The building is one of a number of county courthouses inspired by th