By the beginning of the 20th century, the estate had grown to 3,961 hectares. According to Mansion Global, the property spans 100 rooms across three floors and includes three elevators, 17 themed bedroom suites, and five salons. Amenities in the compound include 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. In 2008, “The property was purchased by an owner from the Middle East but has never been utilized,” Ignace Meuwissen, cofounder of Whisper Auctions who is handling the sale, told Mansion Global.
Another French residence, Château Louis XIV, is currently believed to be the most expensive house in the world. It last sold in 2015 for just under $250 million, but if Château d’Armainvilliers goes for anywhere near its reported asking price, it will easily claim the crown. Meuwissen told Mansion Global that the home will likely change hands behind closed doors. “Most properties we sell are on a whispering basis; the properties change owners mostly confidentiality,” he said. And there’s already interest from potential buyers. “One from East Europe, three from Asia, and one from Mongolia,” Meuwisse said.