They wouldn't, and that's the point. They would build housing for purchase and make their profit on the sale. Pretty simple.

Under those conditions I think only the state begrudgingly would build large blocks of cookie cutter but pragmatic flats. Something ala eastern block country estate housing.

I don’t think we want that. Although some do want that. S better alternative is Tokyo or Singapore (though they had their state built flats too —which inspired state built flats in Brazil.)