4Four Fairfield Pond – Sagaponack, USA
Four Fairfield Pond is the largest residential compound in the United States, located in the exclusive Hamptons region of New York. Owned by billionaire Ira Rennert, this 63-acre estate features a 62,000-square-foot main house with 29 bedrooms, 39 bathrooms, and a dining room that seats 100 people. The estate also includes multiple tennis courts, basketball courts, and a private power plant. The beachfront location and extensive grounds add to its immense value, making it one of the most expensive homes in America.