A WIRED investigation just revealed Mark Zuckerberg's years-long construction of a lavish, bunker-equipped sprawling compound in Hawaii.

The details:

The nearly completed Koolau Ranch spans 1,400 acres with over a dozen buildings, 30 bedrooms, off-grid power and food, helipads and underground bunkers with blast-resistant doors.

Costs eclipse $270 million — with reports of extreme NDAs muzzling hundreds of workers, lawsuits targeting landholders, and Zuckerberg reps allegedly clashing with press.

Political ties abound as the Chan/Zuckerberg donations flow, including hiring a former council chair and funding a former vice chair's nonprofit.

While tech entrepreneurs have a history of doomsday prepping, Zuck sounds like he’s taking this Hawaiian hideaway to the next level.