Some of the top billionaires across the globe spent huge money to build their homes. Their homes are so expensive that some of them represent the GDP of a few countries. Whether it is Mukesh Ambani's $ 2 billion Antilla or Bill and Melinda Gates's $43 million mansion, their homes have gained massive popularity. Below is the list of world's most expensive houses:
1. Buckingham Palace, London, UK: This is one of the most expensive houses in world. Its value is approximately $2.9 billion. It is a Crown property that is equipped with 775 rooms, 188 staff rooms, 52 royal and guest bedrooms, 92 offices, 78 bathrooms and 19 staterooms, according to an India Times report. All these things make it the most expensive house in the world.

2. Mukesh Ambani's Antilla: Mukesh Ambani's house is touted as second most expensive house in the world. Antilla is located in Mumbai and has 27 floors and 9 high speed elevators. The house is equipped with a multi-storey garage that has the capacity of accommodating nearly 168 cars. The business tycoon's home has a huge ballroom, a theatre, 3 helipads, a spa, a temple, and multiple terraced gardens, among others. Antiall has been valued at $2 billion in 2014.
3. Ken Griffin's Penthouse, New York: Ken Griffin is the owner of one of the most expensive houses in the world. The hedge fund manager and CEO of Citadel spent nearly $ 240 million on quadruplex penthouse at 220 Central Park South in New York, as per Robb Report in 2019. The vast 23,000 square feet penthouse houses three floors, 16 bedrooms, 17 bathrooms, and 5 balconies, among others.
4. The Manor, LA: It is one of the largest houses in LA. It houses 123 rooms, 27 bathroom, and 14 bedrooms. It is spread in nearly 56,000 square feet area. It also includes a beauty salon, nightclub, a bowling alley, and a barbershop, among others. It is equipped with extra 5 acres of garden space and tennis court. It is reported that the new owner spent approximately $120 million in all cash deal to purchase the mansion. It belonged to Formula One heiress Petra Ecclestone until 2019.
5. Garrett Camp's Mansion, Beverly Hills: According to Robb Report, the co-founder of Uber Garrett Camp purchased the huge house in 2019. He had reportedly spent nearly $71 million on the mansion situated in Trousdale Estates, Beverly Hills, California. It is spread nearly 12,000 square feet. The house has a semi-subterranean car gallery. It also has an additional acre of land and a zero-edge pool.
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