Mariners Cay Charleston SC Houses For Sale MLS Listings Data: Mariners Cay Total Listings: 5 Average Price: $24,300 Highest Listing Price: $29,000 Average Days On Market: 233 Houses For Sale Mariners Cay subdivision Charleston SC. MLS real estate listings for sale in Mariners Cay Charleston SC by price, street, age, list date, bedrooms & more Mariners Cay Charleston SC. Currently, Mariners Cay in Charleston SC has a total of five listings on the local MLS for sale with an average price point of $24,300, the max being $29,000 and the lowest priced house $20,000. The neighborhood of Mariners Cay subdivision in Charleston SC has an average house size of 6 sq ft and the average days on the market in this community is 233. 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...