We’ve blogged about this massive newly built home a couple of times before and have just found a model that was built of it! The 30,000+ (38,000 rumored) square foot gated mega mansion is being built at the intersection of River and Norton Roads in Potomac, MD. It was designed by Chatelain Architects. It has been under construction for over 3 years now and is almost finished (or may be completely finished). The main house features a grand 2-story rotunda foyer with double staircase, formal reception rooms, library, home office, wine cellar, home theater, two 5-car garages and more. The grounds features a Japanese style tea house, swimming pool with gazebo and a 5,000 square foot guest house complete with 4 bedrooms and a 3-car garage.