[kkfx]

I call individual homes intermixed with small buildings the ideal density. Like in some (not so much) EU areas, where for instance you have few schools in ~10km (~6 miles) radius, a couple of restaurant, maybe a small grocery shop, perhaps a pharmacy and so on. People still need to travel but being spread there are not much traffic nor parking issues and the ability to integrate remote workers and many in person workers keep the model functional.

When some tech change there is space to change. Let's say there is room for a water-water geothermal heat pump instead of a previous methane combustion based heating, there is room for p.v., domestic charging for cars and so on. Something that can't be done in a dense city.