Mark Zuckerberg’s Hawaii compound includes a 5,000 sq. ft. underground shelter

Meta founder Mark Zuckerberg is spending a reported $270 million building the ultimate home in Hawaii.

According to an report from WIRED, Zuckerberg’s super compound sits on 1,400 acres of land on the Koolau Ranch in Kauai, complete with top-notch security and a 5,000-square-foot underground shelter that’s packed with its own food and energy supplies.

While the location of the compound is public knowledge, only a select few have seen the project up close, and they’re usually unable to speak about the project due to iron-clad non-disclosure agreements (NDAs). According to the WIRED’s reporting, there’s a 6-foot wall blocking views from all nearby roads.

“It’s fight club. We don’t talk about fight club,” said David — a former contract employee whose identity is being withheld — to WIRED. “Anything posted from here, they get wind of it right away.”

According to documents and sources, the compound consists of 12 buildings that will include:

While some locals have expressed concern about the scale of the project, a representative for the Zuckerbergs said the project was actually preventing over-development, saving the land from becoming a much more intensely developed luxury neighborhood project.

“When they acquired the property, they rescinded an existing agreement that would have allowed for portions of the property to be divided into 80 luxury homes,” a spokesperson for the couple told PEOPLE. “Under their care, less than one percent of the overall land is developed, with the vast majority dedicated to farming, ranching, conservation, open spaces, and wildlife preservation. This includes a large cattle ranching program, organic ginger and turmeric farms, a nursery dedicated to native plant restoration, and partnering with Kauai’s foremost wildlife conservation experts to protect native birds and other endangered or threatened wildlife populations.”