The median home value in Bel Air, MD is $435,000. The national median home value is $338,100. The average price of homes sold in Bel Air, MD is $435,000. Bel Air real estate listings include condos, townhomes, and single family homes for sale. Commercial properties are also available. If you see a property you’re interested in, contact a Bel Air real estate agent to arrange a tour today!