10. Four Fairfield Pond
Location: Sagaponack, New York, USA. Estimated value: $248 million.
Four Fairfield Pond, also known simply as Fairfield Pond, is a sprawling estate located in Sagaponack, a prestigious village in the town of Southampton on Long Island, New York. Sagaponack is known for its expansive oceanfront properties and is one of the most exclusive and affluent areas in the Hamptons. Four Fairfield Pond is one of the largest residential properties in the United States, spanning approximately 63 acres of land. The estate features meticulously landscaped gardens, lush lawns, and multiple bodies of water, including a vast man-made pond that gives the property its name. The centerpiece of Four Fairfield Pond is a grand mansion that boasts over 64,000 square feet of living space. The mansion features luxurious amenities such as multiple bedrooms and bathrooms, spacious living and dining areas, a gourmet kitchen, a library, a home theater, a wine cellar, and staff quarters.
The mansion at Four Fairfield Pond is designed in a classic and elegant architectural style, with a stately façade, columns, balconies, and intricate detailing. The interior spaces are finished with high-quality materials and craftsmanship, including marble, hardwoods, and custom millwork. The estate offers a wide range of amenities for recreation and entertainment, including indoor and outdoor swimming pools, tennis courts, a basketball court, a bowling alley, a spa, a fitness center, and a guest house. The manicured grounds also feature walking paths, sculptures, and lush gardens. Four Fairfield Pond was originally built for Ira Rennert, a billionaire investor and businessman, in the 1990s. Rennert made his fortune in industries such as mining and manufacturing. The estate has remained in his ownership since its construction. The estate offers residents the utmost privacy and security, with gated entrances, extensive landscaping, and surveillance systems to ensure discretion and safety.