Harmony Hall Round O SC Homes & Real Estate For Sale MLS Listings Data: Harmony HallTotal Listings:5Average Price:$194,200Highest Listing Price:$289,000Average Days On Market:99Houses For Sale Harmony Hall subdivision Round O SC. MLS real estate listings for sale in Harmony Hall Round O SC by price, street, age, list date, bedrooms & more Harmony Hall Round O SC. Currently, Harmony Hall in Round O SCÂ has a total of five listings on the local MLS for sale with an average price point of $194,200, the max being $289,000 and the lowest priced house $44,000. The neighborhood of Harmony Hall subdivision in Round O SC has an average house size of 1,189 sq ft and the average days on the market in this community is 99. 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 active Saving Subscribe Unsubscribe Loading...