Different socialist systems have had different levels of development, policies, and social wealth, so there's no one comparison to a presumably western country. For starters, western countries have inflated social wealthy due to imperialism, which is not a benefit for socialist countries. Countries like the USSR had different systems from modern Cuba, the PRC, etc, but all have different houses, and different wages depending on jobs worked.

I don't have anything in-depth on hand, but surely you can see that eliminating usury from housing makes housing more affordable without needing to compromise on quality.