Duncans Lake - Buford, GA Homes for Sale. Homes for sale in Duncans Lake, 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 Duncans Lake real estate. Properties updated continuously. Duncans Lake homes for sale and real estate listings.