At the time of Soviet Union's collapse, 70-80%+ of all housing stock belonged to the government. New independent countries privatized it all as fast as they could for peanuts (could get an apartment for the price of a Sony VCR), because their condition was horrible and there was no money for repairs in state budget.
https://en.m.wikipedia.org/wiki/List_of_countries_by_home_ow...
all ex socialist countries