Mass timer buildings are prefabricated structures made of (hopefully renewable) wood. The pieces are made in a factory and then able to be quickly constructed together on-site.
This can hopefully greatly reduce the amount of carbon in the atmosphere from producing a building. The cost of producing buildings in this method is also going down. Additionally, these mass timer buildings are typically more dense than single family homes, which can lead to more sustainable communities.
Excuse me if I’m wrong but central hvac system, the word ‘complex’ instead of just ‘apartment building’, no junkies, soundproofed walls… doesn’t sound like ‘working class high density housing’ to me. At least that’s not a thing where I’m from.
Now a ‘major city’ without rats and roaches??? It has to be a cold as fuck city, definitely not a thing in temperate climates.
It sounds like your arbitrarily gatekeeping this.
It’s temperate.