7The One – Bel Air, Los Angeles, USA

  • Value: $500 million

“The One” is an ultra-modern megamansion located in Bel Air, Los Angeles, developed by real estate mogul Nile Niami and designed by architect Paul McClean. At over 100,000 square feet, it is the largest house in the United States.

The estate has 21 bedrooms, 42 bathrooms, a private nightclub, a bowling alley, a cinema, and five swimming pools. The One also offers panoramic views of the Pacific Ocean, downtown Los Angeles, and the San Gabriel Mountains. Despite its grandeur, the mansion faced financial difficulties and legal battles during its development.

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