Castleberry Hills - Buford, GA Homes for Sale. Homes for sale in Castleberry Hills, Buford, GA! View large photos, detailed maps, schools, listing and price history as well as payment calculators. All listing data provided through the Athens MLS, FMLS, and Georgia MLS. Search Castleberry Hills real estate. Properties updated continuously. Castleberry Hills homes for sale and real estate listings.