Summerville SC newly built, new construction, new developments, new homes for sale. See the newest just built & under construction, the newest communities, by the new builder, and subdivisions with new homes for sale in Summerville SC. Summerville SC currently has 887 new homes for sale with an average price range of $443,031, and average size you will expect 2,254 sq ft, and a home site lot size of 0.16 acres. When considering new construction you must familiarize yourself with the process and different types, so you must have a seasoned new construction agent help you with the process.