This ignores competition between landlords though. If I get a UBI to supplement my income, maybe I can take that job in the smaller town instead of working in

This ignores competition between landlords though. If I get a UBI to supplement my income, maybe I can take that job in the smaller town instead of working in the big city. That spreads real estate demand over a much larger area. I'm still not sure whether or not UBI will be a success, but there are some reasonable arguments in its favor.