Most Expensive Houses in the World 2026: Top 10 Ranked

As of October 2026, the most expensive house in the world is Buckingham Palace in London, with estimates of about $1.6 billion, though it can never be sold. The most valuable private home is Antilia in Mumbai, owned by Mukesh Ambani and valued at about $1 billion. Both figures are estimates, not sale prices.

This list ranks ten of the world’s most expensive houses using published valuations, sale prices and past asking prices. We have stated which type of figure applies to each house. Recent sales, such as the $133 million Naples home sold in 2025, give a sense of what the top of the market pays today.

The 10 most expensive houses in the world: summary table

1. Buckingham Palace, London: about $1.6 billion (estimated)

Buckingham Palace has been the London home of British monarchs since Queen Victoria moved in in 1837. It has 775 rooms, including 19 state rooms, 52 royal and guest bedrooms and 78 bathrooms.

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The palace belongs to the Crown, not to the King personally, so it cannot be sold. Valuations are therefore rough. The Close puts it at about $1.6 billion, and other estimates vary widely. A long renovation of its wiring, plumbing and heating is due to finish in 2027.

2. Antilia, Mumbai: about $1 billion (estimated)

Antilia is the 27-storey home of Mukesh Ambani, chairman of Reliance Industries and India’s richest person. It was completed in 2010 on Altamount Road in south Mumbai.

The building has several floors of parking, a health spa, a ballroom and a 50-seat cinema. It is commonly valued at about $1 billion, with some estimates up to $2 billion, which makes it the most valuable private home in the world. For more on the Ambanis and other wealthy dynasties, see our list of the richest families in the world.

3. Villa Leopolda, French Riviera: about $750 million (estimated)

Villa Leopolda sits on about 20 hectares at Villefranche-sur-Mer, near Nice. It was built for King Leopold II of Belgium and appeared in Alfred Hitchcock’s 1955 film To Catch a Thief.

The banker’s widow Lily Safra owned it from the late 1980s until her death in 2022. Russian billionaire Mikhail Prokhorov agreed to buy it in 2008 for a reported €390 million, then pulled out. Its current ownership has not been publicly confirmed. The Close estimates its value at about $750 million.

4. Villa Les Cèdres, French Riviera: about $450 million (estimated)

Villa Les Cèdres is in Saint-Jean-Cap-Ferrat. Its history dates to 1830, and King Leopold II bought it in 1904. It later belonged to the Marnier-Lapostolle family, owners of Grand Marnier.

The drinks group Campari acquired it with Grand Marnier in 2016 and sold it in 2017. Ukrainian businessman Rinat Akhmetov is reported to be the buyer. The Close values it at about $450 million.

5. Fair Field, Sagaponack, New York: about $248 million

Fair Field is the estate of industrialist Ira Rennert in the Hamptons on Long Island. Completed in 2003, it covers about 63 acres and is reported to include its own power plant, a bowling alley and a basketball court.

Its current value is estimated at about $248 million, according to The Close. Rennert has owned it since it was built.

6. Ellison Estate, Woodside, California: about $200 million

Oracle co-founder Larry Ellison built a Japanese-style estate in Woodside, near San Francisco, with a man-made lake, tea house and koi pond. It took about nine years to complete.

The Close estimates it at about $200 million. Ellison also owns most of the Hawaiian island of Lanai, which he bought in 2012, and several other high-value homes in the United States.

7. Seven The Pinnacle, Montana: $155 million (past asking price)

This home is in the Yellowstone Club, a private ski and golf resort for the very rich in Montana. It was planned by club founder Tim Blixseth and his then wife, Edra.

It was listed at $155 million around 2008, before the club went through bankruptcy. The figure is an old asking price, not a sale.

8. 2200 Gordon Drive, Naples, Florida: $133 million

This waterfront estate sold for $133 million in April 2025, making it the most expensive home sale in the United States that year, according to Redfin. The buyer was not named.

Florida took three of the top five places in Redfin’s list of the priciest US home sales of 2025. The state has no personal income tax, which has drawn many wealthy buyers.

9. The One, Bel Air, Los Angeles: $126 million

The One is a 105,000 square foot mansion with a nightclub, a bowling alley and a 30-car garage. It was built by developer Nile Niami, who once hoped to sell it for $500 million.

After the project went into receivership, the house sold at auction in March 2022 for $126 million, before buyer’s fees, to fashion businessman Richard Saghian.

10. Xanadu 2.0, Medina, Washington: about $63 million to build

Bill Gates’s home on Lake Washington is partly built into a hillside. It took about seven years and about $63 million to build, and was completed in 1995.

It has a large library, a trampoline room, a pool with an underwater music system and a garage for many cars. Its assessed value today is much higher than the build cost, but no sale price exists.

How we ranked these houses

We ranked houses by the most reliable figure available. Royal palaces and family homes that have never been sold are ranked on published estimates. Other homes are ranked on recorded sale prices or past asking prices. Each figure’s basis is stated in the table.

Apartments and penthouses are not included here. Ken Griffin’s $238 million New York penthouse, the most expensive home sold in the United States, appears in our list of the most expensive penthouses in the world.

Sources: The Close, most expensive houses in the world, Redfin, most expensive home sales of 2025, NBC News on the US home sale record.