[seanmcdirmid]

Townhomes take up a lot space for stairs. If you want efficiency, you really want apartment buildings full of flats that can amortize shared stair and elevator costs across lots of units.

Tiny homes or…even single wide trailers can work well as housing when land is not so expensive or on land that can’t be built up on right now (the land isn’t typically sold with the tiny home in that case).