Unparalleled luxury custom home opportunity in one of Fairfax's most prestigious and convenient pockets. This magnificent 1.02-acre estate lot at 3100 Covington Street offers the ultimate canvas for a discerning buyer to design a private sanctuary, or for a premier builder to execute a high-end luxury spec home. Boasting a coveted R-1 zoning designation and public water/sewer access available at the street, this property pairs expansive acreage with seamless development logistics. The site features clean dimensions and substantial calculated setbacks that maximize privacy and high-end architectural design flexibility: o Frontage (East): 186.6 ft of road frontage along Covington St with a deep 48.4 ft front setback. o Side (South): 211.8 ft boundary segment providing a generous 69.3 ft setback from the neighboring lot. o Side (North): 205.4 ft boundary segment offering a massive 146.1 ft setback adjacent to the Babashaw Ct lots. o Rear (West): 214.0 ft rear property line allowing for an incredibly private, deep 162.0 ft rear setback. With a standard 35 ft buildable envelope benchmark for residential interior boundaries, the envelope easily accommodates a sprawling main estate footprint, a multi-car side-load garage, outdoor loggias, and a resort-style pool pavilion. Beyond the property lines, the location offers a perfect balance of seclusion and elite urban proximity. Residents will enjoy rapid access to the region's top destination hubs, including the vibrant shopping and dining at Tysons and the Mosaic District and the tech corridor of Reston. Commuting into Washington, DC is effortless via major nearby arteries like I-66 and Route 50. Families will benefit from the highly ranked Fairfax County Public Schools pyramid. Rarely does a full, cleared acre+ become available for a flagship custom build in this location. Bring your architect, review the mapped site specs, and claim this premium Fairfax address.