Istana Nurul Iman (Brunei):
Size: Approximately 2.15 million square feet.
Content: The Istana Nurul Iman is the official residence of the Sultan of Brunei. It includes 1,788 rooms, 257 bathrooms, a mosque, a banquet hall that can accommodate up to 5,000 guests, and a car garage that can hold over 100 vehicles.
Antilia (India):
Size: Approximately 400,000 square feet.
Content: Owned by Mukesh Ambani, Antilia is a private residence in Mumbai. It features a wide range of amenities, including multiple swimming pools, a ballroom, a spa, a temple, and a helipad.
Biltmore Estate (USA):
Size: Approximately 178,926 square feet.
Content: Located in Asheville, North Carolina, the Biltmore Estate is the largest privately-owned home in the United States. It includes 250 rooms, a banquet hall, and extensive gardens.
Versailles (USA):
Size: Approximately 90,000 square feet.
Content: Modeled after the Palace of Versailles in France, this Florida mansion features a roller rink, a two-lane bowling alley, 11 kitchens, and a 20-car garage.
Villa Leopolda (France):
Size: Approximately 80,000 square feet.
Content: Located on the French Riviera, Villa Leopolda has extensive gardens, a commercial greenhouse, a helipad, and numerous bedrooms and bathrooms.
Oheka Castle (USA):
Size: Approximately 109,000 square feet.
Content: Originally built as a private residence on Long Island, Oheka Castle has also served as a retreat for dignitaries and a setting for films. It includes 127 rooms, formal gardens, and a golf course.
Updown Court (England):
Size: Approximately 50,000 square feet.
Content: Located in Surrey, England, Updown Court features 103 rooms, five swimming pools, a squash court, a bowling alley, and a heated marble driveway.
Keep in mind that new developments may have occurred since my last update in January 2022, and rankings can change as new properties are built or existing ones are renovated
