Complete right out of the box, the Boxabl Casita Folding House is literally what it says it is: a house in a box. This folding, affordable house has a full-size kitchen, bath room, living area and promises low utility bills with LED lighting. It’s the size of a studio apartment. It’s fire, water, wind, mold and bug resistant. It’ll set you back $49,500 just for the Casita house unit as of 2021.