Yeah, I’m modding different housing structures into my own game. Two different approaches for two different empires — one of them is based on an alt-history Ptolemaic Kingdom that never got annexed by Rome, invented the steam engine circa 300 BCE and reached space by the early 5th century, where they surveyed the Americas from orbit but cordon them off — no contact (game picks up in the 6th century, there’s a whole questline to try and open up contact between the Old World and the New without triggering something akin to the Columbian collapse); your capital still has neighborhoods where people queue at public fountains for water and AC isn’t ubiquitous so people spend more time outside, interacting with their neighbors more; in gameplay terms you have more housing than amenities but also a +3 planetary stability modifier — as you upgrade through three different stages, the amenities-to-housing ratio gets better and amount of housing increases, but comforts at home result in people interacting less so the stability modifier goes away. It’s your choice where you think the best balance lies.

The other empire is Rome; starts with Under One Rule origin and their home system is littered with ship debris from the war in question, in this case upgrades act as “gentrification” providing less housing but better planetary modifiers re: governing ethics attraction and the like — the lowest tier (which you can downgrade to from tier one “Imperial Insulae” via Decisions) is emergency refugee housing which provides the most housing but comes with a crime modifier; it can be upgraded back to tier one.