There are currently 3 homes for sale in The Retreat of Charleston National in Mount Pleasant SC. Real estate property listings have an average sales price of $619,967, ranging in price from $615,000 to $629,900. The average sq ft home is approximately 1,880 square feet for a house in The Retreat section of Charleston National. The largest property for sale is 2,000 sqft and the smallest 1,720 sqft. View property listings for sale by price, street, subdivision, age, property type, location, features, size, listing date, and time on MLS with an average of fifty-five days on the market.