Condos For Sale Sandcastle South Myrtle Beach SC MLS Listings Data: Sandcastle SouthTotal Listings:4Average Price:$104,700Highest Listing Price:$124,900Average Days On Market:291Condos For Sale Sandcastle South Myrtle Beach SC. MLS real estate condominium listings for sale in Sandcastle South Myrtle Beach SC by list date, number of bedrooms, baths, & floor. Currently, Sandcastle South condos in Myrtle Beach SC have a total of four listings on the local MLS for sale in the community with an average price point of $$104,700, the max being $$124,900 and the lowest priced unit $$79,900. The Sandcastle South condo development of Myrtle Beach SC has an average unit size of 428 sq ft and the average days on the market in this community/building is 291. If you have never owned a condo we suggest reading All You Should Know About Condo Ownership. 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 activeSort by sqft: smaller to biggerSort by sqft: bigger to smaller Filters Saving Subscribe Unsubscribe Switch to Grid View Switch to Map View Loading...