Despite being a billionaire, Elon Musk is living in a home that is worth less than some of his Tesla car models. Photo / Getty Images

Elon Musk is one of the richest men in the world, yet it's been revealed that he lives in a pop-up home worth just $US50,000 (NZ$71,000).

The billionaire owner of electric car manufacturer Tesla has amassed a fortune that sits at $233 billion, according to Forbes, but his humble home is worth less than some Tesla models.

From a nine-bedroom mansion to living in a pop-up house this size. Photo / Boxabl
From a nine-bedroom mansion to living in a pop-up house this size. Photo / Boxabl

The SpaceX CEO revealed he had sold most of his $143m real estate portfolio, flagging back in May 2020 that he was starting to sell all his physical possessions, with his final nine bedroom mansion being listed just last month.

The size of Elon Musk's rumoured house. Photo / Boxabl
The size of Elon Musk's rumoured house. Photo / Boxabl

He said he had put his San Francisco home on the market on June 14, with the mansion rented "out for events", for a whopping $53.6m. Musk had initially purchased the home in 2017 for $33m.

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A view of Boxabl from above and potentially what Elon Musk is living in. The kitchen inside the Boxabl. Photos / Instagram, Boxabl
A view of Boxabl from above and potentially what Elon Musk is living in. The kitchen inside the Boxabl. Photos / Instagram, Boxabl

But he revealed in a tweet that he is now living in a humble home worth $71,000 that he reportedly rents from SpaceX on its launch site in Boca Chica, Texas.

Elon Musk lives very modestly by billionaire standards. Only 1 residential house (plus 1 for events).@ElonMusk uses less resources than most multi-millionaires despite working way harder.

Plus $ sitting in stocks, makes each $ outside worth more exactly proportionally.

— Matt Wallace ⚠️ (@MattWallace888) June 9, 2021

The house, which is constructed from a box in just one day, measures a modest 35sq m and includes the bare essentials such as a living area, bathroom, bed and kitchen.

Musk's tiny house is believed to have been produced by Boxable. The Las Vegas-based company's houses are designed for affordability and ease of construction and look like a studio apartment, although they are also customisable.

The living room is adjacent to the bathroom and laundry area. Photo / Boxabl
The living room is adjacent to the bathroom and laundry area. Photo / Boxabl

The company's co-founder, Galiano Tiramani, said the idea for the first house was initially to overcome shipping issues but they soon realised its huge potential.

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The bathroom even includes a tub. Photo / Boxable
The bathroom even includes a tub. Photo / Boxable

"The goal of the company is to mass-produce housing on a scale and at a cost that's never been done before," Galiano told The New York Post.

"We want to make housing dramatically more affordable for the world."

A Boxabl being folded and shipped. Photo / Boxabl
A Boxabl being folded and shipped. Photo / Boxabl

Boxabl's first design, called the Casita, was pulled by a Tesla Model X in a promotional video although the company warned viewers not to try this at home.NZ