Edmond de Rothschild’s $54 Million Château d’Armainvilliers: A Whispering Sale for the Most Expensive House in the World

In 2008, a Middle Eastern owner purchased the sprawling estate, which spans 100 rooms across three floors and includes three elevators, 17 themed bedroom suites, and five salons. The property boasts amenities such as stables for 50 horses, a beauty parlor, hammam, and housing for staff members.

After Edmond’s death, the home was passed down to various members of the Rothschild family before Edmond’s grandson sold it to the King of Morocco in the 1980s. However, the property has never been utilized since its sale to an owner from the Middle East in 2008.

Ignace Meuwissen, cofounder of Whisper Auctions who is handling the sale, told Mansion Global that if Château d’Armainvilliers goes for anywhere near its reported asking price of $54 million, it will easily claim the crown as the most expensive house in the world. The home is currently believed to be owned by an anonymous buyer.

Meuwissen also mentioned that most properties they sell are on a whispering basis; properties change owners mostly confidentiality. There has already been interest from potential buyers including one from East Europe, three from Asia, and one from Mongolia.