9. The One – Bel-Air, California – 74,000 square feet
In ninth place in the ranking we find the so called “The One“. This big house was envisioned and built by the film producer Nile Niami in Bel Air, California. With a value of $500 million, it is considered as the most expensive home in America. Some people will say it’s an exaggerated price and this probably it’s true but one thing is certain: it offers everything you need and definetly more. It boasts 4 swimming pools, a garage for no less than 30 cars and also a night club. So, The One looks much more than just a house.