Island House Sullivans Island SC Homes & Real Estate For Sale MLS Listings Data: Island House Total Listings: 1 Average Price: $749,000 Highest Listing Price: $749,000 Average Days On Market: 28 Houses For Sale Island House subdivision Sullivans Island SC. MLS real estate listings for sale in Island House Sullivans Island SC by price, street, age, list date, bedrooms & more Island House Sullivans Island SC. Currently, Island House in Sullivans Island SC has a total of one listings on the local MLS for sale with an average price point of $749,000, the max being $749,000 and the lowest priced house $749,000. The neighborhood of Island House subdivision in Sullivans Island SC has an average house size of 486 sq ft and the average days on the market in this community is 28. Relative Sort by Year Built: low to high Sort by Year Built: high to low Sort by price: low to high Sort by price: high to low Sort from oldest to newest Sort from newest to oldest Sort by status: active to under contract Sort by status: under contract to active Saving Subscribe Unsubscribe Loading...