The solution to the housing problem is simple but SE won't do it. Upgrade apartments to small houses utility and make houses FC only while kicking all the personal houses out. The housing areas were never meant for personal housing. Then they could even make the houses cost even more or have active subscription quota for each house size to limit/prevent one person FC houses. Anything less is a bandaid thats just going to lead to the same problem later on. Thats why additional housing hasnt solved anything.