Byrnes Downs Charleston SC Homes & Real Estate For Sale MLS Listings Data: Byrnes Downs Total Listings: 2 Average Price: $1,405,025 Highest Listing Price: $1,435,050 Average Days On Market: 115 Houses For Sale Byrnes Downs subdivision Charleston SC. MLS real estate listings for sale in Byrnes Downs Charleston SC by price, street, age, list date, bedrooms & more Byrnes Downs Charleston SC. Currently, Byrnes Downs in Charleston SCĀ has a total of two listings on the local MLS for sale with an average price point of $1,405,025, the max being $1,435,050 and the lowest priced house $1,375,000. The neighborhood of Byrnes Downs subdivision in Charleston SC has an average house size of 2,052 sq ft and the average days on the market in this community is 115. Relative Sort by Year Built: low to high Sort by Year Built: high to low Sort by price: low to high Sort by price: high to low Sort from oldest to newest Sort from newest to oldest Sort by status: active to under contract Sort by status: under contract to active Saving Subscribe Unsubscribe Loading...