We could even leave those things untouched. And simply build desirable, affordable public housing like Austria. In areas where it's feasible have Finland style district heating.

That would cause the collapse of said corporate land barons and ridiculous Air BNB BS. We won't do it however. Because there's no short term profits in it for said land barons. And it would reduce how much they're able to overcharge impacting their profits long and short term.