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Ever wondered what it feels like to live in a house with over a hundred rooms, personal airports, or even a private zoo? These massive homes aren’t just about space—they’re about making a statement. Some of them look like royal palaces, others feel more like entire cities.
This list of the biggest houses in the world 2025 isn’t based on just size. It’s about how extravagant, over-the-top, and jaw-dropping these homes really are. From India to the U.S., these are the largest residential homes globally that still manage to surprise us, year after year.
Let’s jump into the world’s biggest mansions list—2025 edition.
Table of contents
- 1. Antilia – Mumbai, India
- 2. Biltmore Estate – North Carolina, USA
- 3. Safra Mansion – Sao Paulo, Brazil
- 4. The One – Bel Air, California
- 5. Witanhurst – London, UK
- 6. Istana Nurul Iman – Bandar Seri Begawan, Brunei
- 7. Fair Field Estate – The Hamptons, New York
- 8. Pensmore – Highlandville, Missouri
- 9. Xanadu 2.0 – Washington, USA
- 10. Taohuayuan – Suzhou, China
- 11. La Reverie – Palm Beach, Florida
- 12. Villa Leopolda – French Riviera, France
- 13. Modern Versailles – Windermere, Florida
- 14. Sky Garden House – Mumbai, India
- 15. Casa Encantada – Bel Air, Los Ángeles
- Why These Homes Keep Getting Bigger
- Final Thoughts
- Looking To Bring That Celebrity-Style Charm Into Your Own Home?
- FAQs
1. Antilia – Mumbai, India
Size: ~400,000 sq ft
Still holding its spot as the biggest houses in the world 2025, Antilia is owned by Mukesh Ambani, chairman of Reliance Industries. Located in South Mumbai, this 27-story building has everything—three helipads, a snow room, a ballroom, nine elevators, multiple lounges, a spa, a temple, and a garage that holds over 150 cars. It's not just big—it’s legendary.
2. Biltmore Estate – North Carolina, USA
Size: ~178,926 sq ft
Built in the 1800s by the late George Vanderbilt, the Biltmore Estate is a classic. It’s the largest privately owned house in the United States and is still used today. The mansion has 250 rooms, a bowling alley, a massive library, and more fireplaces than you can count.
3. Safra Mansion – Sao Paulo, Brazil
Size: Estimated 117,000 sq ft
This estate belongs to the Safra family, known for banking. The house is heavily guarded and not much is known about the inside, but it’s believed to have dozens of rooms, private gardens, and an underground bunker. It’s one of the top luxury homes in the world when it comes to privacy and scale.
4. The One – Bel Air, California
Size: ~105,000 sq ft
Designed as the “most expensive house in the U.S.,” The One includes a nightclub, salon, bowling alley, gym, movie theatre, and a garage for 30 cars. With a panoramic view of Los Angeles, it’s still among the largest residential homes globally.
5. Witanhurst – London, UK
Size: ~90,000 sq ft
Hidden in London’s posh Hampstead area, Witanhurst is the second-largest house in the city after Buckingham Palace. The home includes a ballroom, a swimming pool, and many secret rooms. The current owner? Still unknown to the public.
6. Istana Nurul Iman – Bandar Seri Begawan, Brunei
Size: ~2.15 million sq ft
Technically, this is the biggest residential palace in the world, belonging to the Sultan of Brunei. It has 1,788 rooms, including 257 bathrooms. Though it’s a royal palace, it’s still counted as the biggest houses in the world 2025 rankings due to its use as a home.
7. Fair Field Estate – The Hamptons, New York
Size: ~110,000 sq ft
Owned by billionaire Ira Rennert, this beachfront property has 29 bedrooms, 39 bathrooms, a private theatre, and three swimming pools. It’s also known for having one of the largest home electricity bills in the U.S.
8. Pensmore – Highlandville, Missouri
Size: ~72,000 sq ft
This house isn’t just big—it’s built to last. Designed to survive earthquakes, tornadoes, and even bomb blasts, Pensmore is part mansion, part fortress. It’s one of the most unusual entries in the world’s biggest mansions list.
9. Xanadu 2.0 – Washington, USA
Size: ~66,000 sq ft
Bill Gates’ futuristic mansion is packed with smart technology. The home has an indoor swimming pool with underwater music, a massive library, and changeable art on the walls. It’s not the biggest, but definitely one of the smartest homes on the list.
10. Taohuayuan – Suzhou, China
Size: ~72,000 sq ft
This lakeside villa blends modern luxury with traditional Chinese architecture. Surrounded by water and gardens, Taohuayuan includes 32 bedrooms, all facing a private lake. Among the top luxury homes in the world, this one is a hidden gem.
11. La Reverie – Palm Beach, Florida
Size: ~84,000 sq ft
One of the largest homes in Florida, La Reverie was originally built for events and charity galas. Now, it’s a private residence. Marble floors, crystal chandeliers, and sea views make this a dream home by all standards.
12. Villa Leopolda – French Riviera, France
Size: ~80,000 sq ft
Overlooking the Mediterranean, this villa has been home to kings and billionaires. With terraced gardens, 19 bedrooms, and antique interiors, it’s often called one of the most beautiful houses in Europe—and a staple on any world’s biggest mansions list.
13. Modern Versailles – Windermere, Florida
Size: ~90,000 sq ft (still under construction)
Inspired by the French Palace of Versailles, this American version includes a ballroom, a 30-car garage, and multiple indoor pools. Once completed, it’ll be among the biggest houses in the world 2025 contenders.
14. Sky Garden House – Mumbai, India
Size: ~70,000 sq ft
Not as famous as Antilia, but still massive. This Mumbai home blends greenery with glass and steel. Designed to feel like a vertical garden, it features open-air terraces, a pool, and eco-friendly features. A rising name in top luxury homes in the world.
15. Casa Encantada – Bel Air, Los Ángeles
Size: ~75,000 sq ft
This historical home has been remodelled multiple times, but still holds its charm. Huge lawns, ocean views, and gold-accented interiors make this estate one of LA’s most iconic.
Why These Homes Keep Getting Bigger
The idea of the biggest houses in the world 2025 isn’t just about space. It’s also about what space means—privacy, power, and personal style. These homes are built for families, guests, staff, events, and sometimes, just for legacy.
Every few years, someone tries to outdo the last big mansion. More rooms. Bigger pools. Wackier features. What used to be wild (like having an indoor cinema) is now standard. The future of residential architecture is heading toward homes that feel like private worlds—safe, self-sufficient, and sometimes, a little surreal.
Final Thoughts
The biggest houses in the world 2025 might not stay at number one for long. New estates are always being planned, and old ones are being expanded. But the charm of these homes isn’t just their size—it’s how they push the limits of what a home can be.
From traditional palaces to glass-covered hilltop villas, the largest residential homes globally are more than buildings. They’re statements. Some of them might never be fully lived in. Others are passed down for generations. But every one of them reminds us how far architecture and ambition can go.
Whether it’s Antilia’s vertical tower or Villa Leopolda’s sweeping gardens, this world’s biggest mansions list gives a peek into how the world’s wealthiest choose to live—and how they define “home.”
Looking To Bring That Celebrity-Style Charm Into Your Own Home?
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