Solarpunk

Some issues are solvable with better architecture but developers don't make money on it, many only build for the landlords. Stuff like good soundproofing between separate units, both a lift and multiple staircases in bigger buildings, visual variation between buildings or parts of buildings so people don't get lost or stir crazy, outdoor spaces with both vegetation and useable areas.

Depends on your city, but many need more medium-density, not go straight from terraced housing to seven floor buildings.