LUXURY PROPERTY AUCTION: 5-18 DECEMBER. Accepting Starting Bids Through 4 December. Starting Bids Expected Between $7.5M-$11.5M. Earn an incentive by 4 December. Anchored along the Potomac River on over 13 private acres, this magnificent French Chateau-inspired estate exemplifies the pinnacle of architectural refinement and luxurious living. Approached by a half-mile tree-lined drive beyond an arched gate, the residence unveils breathtaking panoramas of the river and protected parkland. A masterful collaboration between architect John Ike, designer Geoffrey Bradfield, and Horizon Builders, this limestone and slate masterpiece comprises over 40,000 square feet across three meticulously crafted structures. The 25,000-square-foot main residence features coffered ceilings, floor-to-ceiling windows, and imported stone detailing throughout four levels. The entertainment-grade lower level showcases a professional theater, clubroom with magnificent bar, and wine cellar rivaling the finest restaurants. A thoughtfully designed three-level guesthouse with 11 garage bays transforms effortlessly from automotive showroom to glamorous event space, while a 4,500-square-foot staff residence ensures seamless property management. Every amenity speaks to uncompromising luxury-commercial chef's kitchen, elevator access, heated pool, generator backup, automated snow-melt systems, and reverse osmosis water throughout. Remarkably, sale proceeds benefit The American Cancer Society, making this acquisition an extraordinary legacy opportunity. Sale includes 11916 River Rd, Potomac, MD 20854