[cornholio]

A baseline of housing - for example, a Japanese style capsule or ultra-tiny home, that you can lock and store your belongings safely - costs close nothing. Of course, nobody would want the hobo-hotel in their neighborhood, but it has nothing to with scarcity.

> the limited availability of land zoned for housing.

A limited area of land is zoned for housing because those with the power to expand it are already housed. This explains how scarcity is created, not that there is any intrinsic scarcity.

[bloppe]

It's a limited area of desirable land zoned for housing. You could build all the tiny homes in the world in bum frick nowhere, but the unhoused would rather be homeless in a big city for various reasons. I probably would too.

[cornholio]

This is another reframing of the problem. What makes the area desirable is previous investment society has made there, to the benefit of some and the exclusion of others; the scarcity is created by political choices, not intrinsic.