Mark Zuckerberg Is Reportedly Building an Underground Bunker in Hawaii. Here’s What to Know

Mark Zuckerberg Is Reportedly Building an Underground Bunker in Hawaii. Here’s What to Know

Meta CEO Mark Zuckerberg and his wife Priscilla Chan, co-founder and co-CEO of the Chan Zuckerberg Initiative, plan to build a 5,000-square-foot underground shelter on their Hawaii ranch with its own energy and food supplies, according to a Wired investigation published earlier this month.

The plan is that the shelter’s door will be made of metal and filled in with concrete—common in bunkers and bomb shelters, the news outlet reported in its extensive article citing planning documents and interviews.  

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The bunker-like construction is just one part of the sprawling 1,400-acre compound, named Koolau Ranch, on the island of Kauai. Planning documents obtained by Wired show the partially-completed compound is set to include more than a dozen buildings with at least 30 bedrooms and 30 bathrooms, including two stand-alone mansions. There are also plans for 11 treehouses, as well as a fitness center, guest houses and operations buildings. 

It was not clear from reports of planning documents what the intent of the underground shelter is. TIME has reached out to the Chan Zuckerberg Initiative for further information about the project and the purpose of the shelter.

Brandi Hoffine Barr, spokesperson for Mark Zuckerberg and Priscilla Chan, declined to comment to Wired on the bunker, but told the outlet the family considers the ranch their home. 

There continues to be high interest on social media surrounding Zuckerberg’s reported bunker plans. Speculative posts have argued that Zuckerberg and Chan may be building the bunker for natural disasters or even the “apocalypse” with some remarking on the rising trend among billionaires. One TikTok video, which has racked up 2 million views, looks at Wired‘s report on the cited bunker plans and asks viewers: “What’s Mark Zuckerburg [sic] prepping for?”


Whats Mark Zuckerburg prepping for? Put your thoughts in the comments! #leavetheworldbehind #markzuckerberg #bunker #prepping

♬ original sound – MaybeSeanC


Mark Zuckerberg is building a mega-compound that will include an underground bunker on his Hawaiian estate — and it will cost more than $270 million, according to Wired. It will reportedly have some 30 bedrooms, 30 bathrooms and 11 treehouses. #markzuckerberg #meta #facebook #hawaii #kauai

♬ original sound – CBS Mornings

Silicon Valley’s elite have been buying up property and trying to build bunkers for years, The Guardian has reported. Venture capitalist Peter Thiel’s much-publicized plans were not approved by a local council in New Zealand in 2022, as authorities cited concerns that the bunker-like home would negatively impact the surrounding landscape. Entrepreneurs are reportedly selling luxury underground apartments in case of a catastrophe, while super-rich doomsday preppers asked Douglas Rushkoff, author of the book Survival of the Richest, how to guard their own food supply, among other end times survival concerns, he has shared.

Whatever the purpose, the cost to build the new Zuckerberg-Chan compound is expensive––along with the land, it is pegged at upwards of $270 million, Wired reported. Construction and other workers on the property were reportedly made to sign strict non-disclosure agreements, according to the news outlet.

TIME asked the Chan Zuckerberg Initiative about the NDAs. Hoffine Barr did not comment to Wired about NDAs.

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