Sea Island Preserve Johns Island SC Homes & Real Estate For Sale ALL ACTIVE MLS Listings Sea Island PreserveTotal Listings:14Average Price:$869,872Highest Listing Price:$1,199,000Average Days On Market:82Houses For Sale Sea Island Preserve subdivision Johns Island SC. MLS real estate listings for sale in Sea Island Preserve Johns Island SC by price, street, age, list date, bedrooms & more Sea Island Preserve Johns Island SC. Currently, Sea Island Preserve in Johns Island SC has a total of fourteen listings on the local MLS for sale with an average price point of $869,872, the max being $1,199,000 and the lowest priced house $625,000. The neighborhood of Sea Island Preserve subdivision in Johns Island SC has an average house size of 3,002 sq ft and the average days on the market in this community is 82. RelativeSort by Year Built: low to highSort by Year Built: high to lowSort by price: low to highSort by price: high to lowSort from oldest to newestSort from newest to oldestSort by status: active to under contractSort by status: under contract to activeSort by sqft: smaller to biggerSort by sqft: bigger to smaller Filters Saving Subscribe Unsubscribe Switch to Grid View Switch to Map View Loading...