In Spain, most of those socialized residential housing projects were not designed with quality of life in mind. Instead, they are more in line with France's post-war operational urban planning approach mainly designed to maximize how many lower-class people could be stored in small areas. They might place a roof over your head, but apartments are extremely small with extremely small rooms, quality of life is very poor, and zoning didn't even allowed any type of non-residential use. Some neighborhoods are outright designed after prison blocks. In contrast, the middle/upper middle class residential areas often come in the form of locked up apartment blocks manned by one or more "conserges" (like a mix between a janitor and private security guard) with the ground and first floor completely locked up.