New Single Family Homes in Fort Washington, MD; Prince Georges County, DC Metro Area. Affordable luxury homes in a quiet enclave surrounded by trees. Less than 5 minutes from I-495, with easy access to Northern Virginia and Washington, Stonegate Estates offers spacious home designs to fit the life you live today. Enjoy the privacy of homesites backing to woods or located on a quiet cul-de-sac. Experience National Harbor with its award-winning restaurants and endless shopping opportunities or take advantage of all that Washington has to offer. Perfect location plus exceptional homes equals a dream come true! NOTE: Selling Offsite at Beechtree 15501 Chiddingstone Circle, Upper Marlboro, MD 20774.