New construction Williston SC newly built, 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 Williston SC. Williston SC currently has 1 new homes for sale with an average price range of $205,000, and average size you will expect 1,680 sq ft, and a home site lot size of 2.10 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.