Pt 21 Mile Summerville SC Homes & Real Estate For Sale MLS Listings Data: Pt 21 MileTotal Listings:2Average Price:$392,500Highest Listing Price:$460,000Average Days On Market:187Houses 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 187. 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 active Filters Saving Subscribe Unsubscribe Switch to Grid View Switch to Map View Loading...