Everyone doesn’t have more spending power under UBI; some people would be paying more in taxes than they’re getting back from the pool.

But yeah, if you give everyone in a certain group more money to spend, that’s more demand and hence higher prices assuming fixed supply.

So really, to avoid that issue with housing, you’d need to reduce friction to increasing supply. Maybe that means letting people build higher density housing without having to wait for the government to re-zone from low to high density. Or removing the minimum size on apartments, whatever.

Point is your market will adapt to the newly-super-profitable endeavor of landlording, by providing more housing.

Because as long as there’s any vacant housing, landlords are not free to price fix however they see fit. I mean they could if they were all in cahoots, but they’re not. They’re in competition.