Harbor Oaks Charleston SC Homes & Real Estate For Sale ALL ACTIVE MLS Listings Harbor OaksTotal Listings:2Average Price:$549,950Highest Listing Price:$629,900Average Days On Market:39Houses For Sale Harbor Oaks subdivision Charleston SC. MLS real estate listings for sale in Harbor Oaks Charleston SC by price, street, age, list date, bedrooms & more Harbor Oaks Charleston SC. Currently, Harbor Oaks in Charleston SC has a total of two listings on the local MLS for sale with an average price point of $549,950, the max being $629,900 and the lowest priced house $470,000. The neighborhood of Harbor Oaks subdivision in Charleston SC has an average house size of 1,599 sq ft and the average days on the market in this community is 39. 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...