“The One” in Bel Air, Los Angeles, is the largest private residence in Los Angeles and California, spanning 105,000 square feet. Originally priced at $500 million, it includes 21 bedrooms, 42 bathrooms, five swimming pools, a private nightclub, and a 30-car garage. This modern mega-mansion sets a new standard in luxury living with panoramic city views and state-of-the-art amenities.