Zuckerberg's 1,400-acre Hawaii retreat is named Koolau Ranch.
(Image via GettyImages)

World's billionaires are rumored to build apocalypse-proof bunkers, and Wired's recent report on Meta CEO Mark Zuckerberg's 1,400-acre Hawaii estate, Koolau Ranch, sheds light on this trend. Estimated at $270 million, the property includes a self-sufficient underground bunker covering 5,000 sq ft. The report gathered details from local sources and planning documents, emphasizing the conservative nature of the estimate. Workers on the project adhere to strict nondisclosure agreements, maintaining confidentiality about the construction.

Mark Zuckerberg's Koolau Ranch, a 1,400-acre Hawaii estate, boasts over a dozen buildings with at least 30 bedrooms and bathrooms. The 5,000 sq ft underground bunker is self-sufficient, providing independent energy, food, and water. The property's estimated worth is $270 million, factoring in construction and land purchase, with confidentiality maintained among workers through strict nondisclosure agreements.

Workers on the project, including carpenters, security guards, and electricians, are under a stringent nondisclosure agreement, prohibiting them from disclosing construction details to anyone, according to Wired's report.

Zuckerberg is not the only billionaire taking precautions for doomsday scenarios. According to a 2017 New Yorker article, titled "Doomsday Prep for the Super-Rich," several billionaires and tech leaders have invested in bunkers or safe houses to secure themselves in hypothetical scenarios of civilization collapse.

Reddit founder and CEO Steve Huffman shared his own preparation, including laser eye surgery to avoid potential difficulties in obtaining contacts or glasses during troubled times. Huffman, 40, mentioned owning motorcycles, having a supply of guns and ammo, and stockpiling food as part of his doomsday readiness.

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