Sullivans Island Homes for Sale

Sullivan's Island trades subdivision-style sameness for a barrier-island streetscape shaped by the beach, the marsh, and Charleston Harbor. Current offerings run from an $849,900 fractional share to oceanfront and deepwater estates above $16 million, with many homes sitting on roughly quarter-acre to half-acre parcels and a notable concentration of pools, porches, and water-oriented outdoor spaces.

Community Highlights

Homes here range from early-1900s historic properties to brand-new custom construction scheduled through 2026, and that mix gives the island its layered character. Historic houses on streets such as Middle Street and Ion Avenue sit alongside newly built marshfront and oceanfront residences on Jasper, Atlantic, and Marshall, while the neighborhood's average price of about $7.43 million reflects how strongly buyers value direct water exposure, larger lots, and walk-to-beach positioning. Marshall Boulevard and Atlantic Avenue stand out at the top of the price ladder, where oceanfront settings and broader water views consistently command a premium.

Across the island, outdoor living is central to the architecture. Screened porches, wide decks, rooftop lookouts, outdoor showers, fireplaces, guest suites, and under-house entertaining areas appear again and again, and nearly half of the listings include a private pool. About one-third of the inventory is waterfront, with remarks highlighting marsh frontage, deepwater docks, Breach Inlet, Conch Creek, Intracoastal Waterway views, and sightlines toward the Atlantic and Morris Island Lighthouse.