You would think that with a real estate market as hot as Texas’ and the ability to get a McMansion for only half a million dollars in plenty of suburbs, one of the richest men in the world would have some pretty sweet digs.

But multi-billionaire Elon Musk is apparently living in almost a literal box in Starbase, Texas.

Musk revealed earlier this month that he only owns one house in the Bay Area now after selling off most of his real estate assets and is currently renting a home worth $50,000 from SpaceX while he does all his space things in Boca Chica.

Teslarati’s Simon Alvarez reports that Musk’s rented home is actually a mass-produced, 20 feet x 20 feet “foldable, prefabricated home” from Boxabl, a housing start-up company. The “Boxabl Casita” Musk reportedly lives in is set up like a studio apartment, with one large room partitioned into a living room and bedroom area, a fully equipped kitchen band a bathroom with a tub shower.

Boxabl posted a video in November from inside the Casita, announcing the company had just built it for a “high-profile” and “top secret” customer in Boca Chica. But while the company didn’t name names, Boca Chica isn’t exactly teeming with celebrities, especially ones who would have a poster of a SpaceX Falcon 9 rocket on the door.

The company has since stayed very “wink-wink” about the fact that a billionaire calls one of its Casitas home and said it was “kinda awesome.”

But perhaps when humanity makes its way to Mars, we’ll all live like billionaires in Boxabl Casitas.