Pt 21 Mile Summerville SC Houses For Sale MLS Listings Data: Pt 21 Mile Total Listings: 2 Average Price: $392,500 Highest Listing Price: $460,000 Average Days On Market: 197 Houses For Sale Pt 21 Mile subdivision Summerville SC. MLS real estate listings for sale in Pt 21 Mile Summerville SC by price, street, age, list date, bedrooms & more Pt 21 Mile Summerville SC. Currently, Pt 21 Mile in Summerville SC has a total of two listings on the local MLS for sale with an average price point of $392,500, the max being $460,000 and the lowest priced house $325,000. The neighborhood of Pt 21 Mile subdivision in Summerville SC has an average house size of 1,100 sq ft and the average days on the market in this community is 197. 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...