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The 9 Most Expensive Houses in the World (2021)

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We're talking about billionaire homes, and homes that alone can represent the GDP of some countries. From castles to mansions, historic palaces to contemporary villas; here are the 9 most expensive houses in the world:

9. Xanadu 2.0, Washington DC – $ 125 million 

Xanadu 2.0

Source: PostOat

If one of the richest men on earth won’t live in the costliest house in the world, then what’s the point, right? Home to Bill Gates and Melinda Gates, this is a 66,000 sq. ft property. To design and build it, it took him 7 years and invested almost $65 million in it! 

A 60-foot-pool, 2100 square-foot library, a secret bar, and even remote-controlled wall artwork are a few of its distinguished and unique features. Currently valued at $125 million, it is no surprise that it is part of the costliest house on the world list.

If you didn't know, Bill Gates and Melinda have officially divorced after a 27-year marriage, which means that this futuristic smart house could actually potentially go on sale!

 

8. 18-19 Kensington Gardens – $ 128 Million

18-19 Kensington Gardens

Source: Price Action Guide

Owned by Lakshmi Mittal, the Indian business boss of Arcelor Mittal and the world’s largest steel manufacturer, stands this property so elegantly on Billionaires Row. Just next door to Prince William and Kate Middleton, this home boasts 12 bedrooms, 20 parking spaces, an indoor pool and an immaculately-presented garden. Valued at approximately £97million ($128 million), wouldn’t it be lovely and not over-the-top to live here? 

18-19 Kensington Gardens is roughly 55,000 square-foot and was first built in the 19th century. Before Mr Mittal purchased the property, it was owned by some pretty famous and wealthy families; i.e. the Rothchilds, Free Poles, David Khalili and Bernie Ecclestone. It was originally two semi-detached houses, later being converted into a single dwelling by, developer, David Khalili. 

 

7. Palazzo di Amore – $ 195 Million

Palazzo di Amore

Source: Forbes

It’s no surprise that one of the most expensive homes in the world can be found in Beverly Hills, California.

Palazzo di Amore is owned by successful real estate entrepreneur, Jeff Green, and is approximately 53,000 square feet. This Mediterranean-style villa has 12 bedrooms, 23 bathrooms, numerous swimming pools, tennis courts, waterfalls and theatres, and also a 27-car garage.

Palazzo di Amore looks more like a holiday resort than someone’s home, but we can assure you that it is one of the world’s most expensive homes. 

Check out this video for a house tour here:

 

6. Ellison Estate, California - $ 200 million

Ellison Estate, California

Source: The Wall Street Journal

This massive Japanese style of house is owned by Larry Ellison, the co-founder of Oracle, who is also one of the leading property collectors. It took almost 9 years to build!

It has 3 cottages, a gymnasium, a five-acre man-made lake, and a koi pond. This estate also holds 10 different properties, a tea house and bathhouse, all with an immaculate lodge-like design in and out with outstanding lake views. It is highly inspired by the design & decor style of Japan.

 

5. Fair Field Mansion, New York - $ 249 million

Fair Field Mansion

Source: The Wall Street Journal

Owned by an American billionaire, Fair Field Mansion is the home of Ira Renner, owner of the Renco Group (a holding investment company in auto manufacturing and smelting).

It is a 63-acre estate, with 29 bedrooms, 35 bathrooms, 3 dining rooms, 3 light-up swimming pools and a private theatre. And the fun part? It has its very own onsite power plant to ensure the continuous supply of electricity. Not at all over-the-top.

 

4. Les Palais Bulles, France - $ 390 Million

Les Palais Bulles

Source: The Milliardaire

Coined the “Bubble Palace”, Le Palais Bulle was designed by Hungarian Architect, Antti Lovag, and was built somewhere in the region of 1975-1989. Its nickname comes from a series of round rooms that look out over the Mediterranean sea.

Lovag's inspiration for the design of the property came from man’s earliest dwellings. But has obviously been seriously upgraded with some really nice features. For example, the property has three swimming pools, numerous gardens and a 500-seat amphitheatre built into the hillside grounds. 

Bubble Palace is currently owned by Pierre Cardin, an Italian-born French fashion designer. The estimated value of the house is nearly $390 million. 

 

3. Villa Leopolda, Cote D’Azure, France – $ 500 Million 

Villa Leopolda, Cote D'Azur,

Source: amazing.zone

Valued over $750 million, Villa Leopolda is the third most expensive house in the world and most expensive in Europe.

It was built in 1906 by King Leopoldo II of Belgium and is currently the residence of Russian billionaire Mikhail Prokhorov, owner of the Brooklyn Nets. The mansion once served as a military hospital during the First World War.

Housing 19 rooms, it has architecture in the belle époque style and is surrounded by gardens and woods, where over a thousand olive trees and fruit trees are planted.

This 50-acre countryside estate includes a huge greenhouse, a pool house, an outdoor kitchen and a guest house. It is owned by Lily Safra, a Brazilian philanthropist! In comparison to the other homes, it doesn’t offer as much despite its price. But it is situated in a stunning, peaceful countryside location in France. 

 

2. Antilia, Mumbai, India – $ 1 Billion 

Antilia, Mumbai, India

The second most expensive house in the world is located in Mumbai, India, and has 27 floors. Owned by Mr Mukesh Ambani, the 10th richest man on the planet.

Valued at over a whopping $1 billion, the house features an architecture that follows the principles of the ‘Vastu Shastra’ philosophy, to become an immense portal of positive energy. The Antilia has a lounge, a grand garden, and demands over 600 employees for its maintenance. 

It was designed and constructed by Chicago-based architecture firm, Perkins & Will, and hospitality design firm, Hirsch Bender Associates. 

The 400,000 square foot building is positioned in Mumbai’s Cumballa Hill neighboured and stands at an impressive 27 stories high. It’s also been built to withstand an earthquake of magnitude 8 on the Richter scale. Inside the house, you can find six floors that are purely devoted to car storage, a service station for the cars, a temple, a 50-seat movie theatre and nine elevators. 

It also has a health spa, three helipads, a salon, a ballroom and yoga studio, an ice-cream room and multiple cinemas. 

 

1. Buckingham Palace, UK – $2.9 Billion

Buckingham Palace

Coming in at number one on the list and claiming the title of the most expensive house in the world, is Buckingham Palace. The palace is owned by the British Royal family and is one of a number of lavish properties in their portfolio. It is located in the city of Westminster, London, and comprises 775 rooms, 78 bathrooms, 92 offices and 19 staterooms. It’s been the official residence of the monarchy since 1873.

In terms of size, the palace checks in at approximately 828,000 square feet and the garden alone is 40 acres. However, despite its impressive size and taking the title of the most expensive house in the world, it’s still not the largest palace in the world!

It’s estimated that if the palace were to be put up for sale; it would be somewhere in the region of $2.9 billion, but it’s highly unlikely it will ever happen. 


The most expensive homes in the world are built based on the owners' tastes and preferences. Why not find one of your own and invest in it like them too?

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