Marshall Reservation Sullivans Island SC Homes & Real Estate For Sale MLS Listings Data: Marshall Reservation Total Listings: 2 Average Price: $3,952,500 Highest Listing Price: $5,350,000 Average Days On Market: 106 Houses For Sale Marshall Reservation subdivision Sullivans Island SC. MLS real estate listings for sale in Marshall Reservation Sullivans Island SC by price, street, age, list date, bedrooms & more Marshall Reservation Sullivans Island SC. Currently, Marshall Reservation in Sullivans Island SC has a total of two listings on the local MLS for sale with an average price point of $3,952,500, the max being $5,350,000 and the lowest priced house $2,555,000. The neighborhood of Marshall Reservation subdivision in Sullivans Island SC has an average house size of 4,660 sq ft and the average days on the market in this community is 106. 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...