Luxurious living has no limits. Extravagant houses are a statement of the residents’ power and vision. Some grand houses feel unreal. These residences not only offer comfort, but also support people’s lifestyle without any hassle. If you are interested in knowing further about these over-the-top residences, this blog is for you. Let’s take a look at some properties that are popular for their infrastructure, beauty, and exclusivity.
Here are the top 7 Biggest Houses in the World that continue to fascinate real estate lovers globally.
Why Luxury Homes Captivate the World’s Real Estate?

Before diving into the list, we must agree that Luxury homes attract attention because they feel special. Vast real estate built with planned infrastructure boosts the real estate value of the area with its detailed work and high-end value.
- Unique and limited properties create more real estate value. These homes offer exclusivity. Fewer people can access them, which makes them desirable.
- Intentional and well-crafted influences premium living. Luxury homes showcase beautiful architecture and custom details, making them worth more.
- The elevated lifestyle of wealthy residents boosts property value. Private pools, theatres, spas, and smart features add to the property value.
- Luxury properties also hold strong investment value. Wealthy buyers trust them as long-term assets in the markets.
Most importantly, luxury homes reflect success, ambition, and personal taste. That emotional connection is why the world never stops admiring luxury real estate.
List of 7 Biggest Houses in the World
Here are the biggest houses in the world as per their property size.
| Rank | Name | Size (sq ft) | Location |
|---|---|---|---|
| 1 | Istana Nurul Iman | 2,150,000 | Brunei |
| 2 | Buckingham Palace | 828,821 | United Kingdom |
| 3 | Antilia | 400,000 | India |
| 4 | Biltmore Estate | 178,926 | USA |
| 5 | Safra Mansion | 117,000 | Brazil |
| 6 | The One | 105,000 | USA |
| 7 | Witanhurst | 90,000 | United Kingdom |
Istana Nurul Iman
The Sultan of Brunei lives in this magnificent palace. It is the largest residential palace in the world.
The estate has 1,788 rooms for the staff and residents. It also includes many ballrooms and a stable with 200 ponies.
Buckingham Palace
The house serves as the HQ and official residence of the British monarch. The house has 775 rooms, including 19 state rooms and offices. The estate is well known for its magnificent building, gardens, and ceremonies. While technically Crown property, it consistently ranks among the world’s largest inhabited residences.
Antilia
The property is owned by billionaire Mukesh Ambani. The property has over 27 floors. It is the largest private home owned by any individual in the world. The house has three helipads, a snow room, and space for 168 cars.
Biltmore Estate
The Biltmore House is America’s biggest private home. The mansion has a huge library and around 250 rooms. It also features grand and beautiful ballrooms.
Safra Mansion
A highly private estate owned by the Safra banking family. The mansion is so massive that it features both indoor and outdoor swimming pools. The property has more than 130 rooms, nine elevators, and a helipad.
The One
The One is a modern mega-mansion owned by the CEO of Fashion Nova. It is considered the largest modern house in America. It features 21 bedrooms and a unique 10,000-bottle wine cellar. The house also features a private nightclub.
Witanhurst
This home is owned by a Russian billionaire. It is the city’s second-largest private residence. The mansion has a ballroom and a theatre for entertainment. Its interiors are classic British elegance and modern luxury, which makes this home a stunning and sophisticated.
What Makes These Homes So Special?
The world’s biggest houses stand out for more than just their size. They offer:
- Unmatched privacy
- Custom architecture
- Unique designs
- Luxury amenities
- Prime locations
- Exclusive lifestyle
These homes are built to make a statement.

Conclusion
The biggest houses in the world redefine real estate. They combine comfort with art to create properties that are one of a kind. As global wealth grows, the architecture evolves as well. These massive estates remind us that real estate is an ever-growing industry. With SmartKey Realty, you can also make smart property investments. We help you find properties that complete your checklist and grow in ROI.