Developed by American film producer and real estate developer Nile Niami in collaboration with architect Paul McClean, the trio have set out build the most expensive house ever built. Priced at $500 million (approx. £350m), this 100,000 square-foot Bel Air mansion (twice the size of the White House) will include five swimming pools, a Monaco-style casino, a 5,000-square-foot master bedroom, a two-storey waterfall, a nightclub with VIP access, a 40-seat cinema, a 30-car garage, jellyfish tank walls, and a four-lane bowling alley.

"We're trying to sell a lifestyle, a sense of how people imagine they would live," says McClean. Way to rub it in, McClean. But in case you're getting any funny ideas, the home comes with security "straight from the Death Star" and additional corridors so all the staff can get around.

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