These remind me of the Forever Houses in Clifford Simak's novel, Ring Around The Sun. Those were prefab houses that never, ever wore out, and were cheaper than any house anyone could buy.

These wear out, but they're amazing: Prefab Houses by TenFold Engineering

This does tiny houses one better: a portable house that is all folded up, just the size of a trailer truck, until you bring it to the land it’s going to sit on. No foundation needed, and they work on unlevel ground too. They self-unload from the truck: Just plug them into power, I suppose, and they start putting down legs and will open up. The truck can just drive out from underneath.

Their site: TenFold Engineering

The videos of the things opening up is great. If I had money to invest, I’d either buy a house or just invest in the company.

I also like the other structures they’ve designed: instant barriers that can be used for highway construction, stages, stadium seating, small footbridges that open up and self-install, huts, display booths, etc.