I heard about this second hand from some Bay Area residents in their 70s: Back in the 60s a lot of the hippy communes were able to take over old run down mansi

I heard about this second hand from some Bay Area residents in their 70s: Back in the 60s a lot of the hippy communes were able to take over old run down mansions in the Bay Area in Marin and San Francisco. These mansions got run down because, due to no illegal immigration, construction and maintenance were very expensive and keeping old houses up was astronomically expensive.