500 Million Dollar Cottage in Bel Air

Nicknamed "The One," the opulent hilltop home sits on a gated 4-acre property. It includes 18 bedrooms and 25 bathrooms, according to the developer, Skyline Development. It's being listed with Branden and Rayni Williams of Williams and Williams.
The house's over-the-top amenities include a theater with more seats than the place that plays indie flicks, multiple swimming pools and water features, a gym that looks like it requires a membership, a library that has both floor-to-ceiling windows and built-in bookshelves, a spa with a steam room and Jacuzzi and a whole nightclub. A 20-car garage means no one needs to carpool to the house. There's also a tennis court, wine cellar, game room, billiards room, pool house and a three-bedroom guest house with its own spa and pool.