An habitation à loyer modéré, is a form of low-income housing in France, Algeria, Senegal, and Quebec. It may be public or private, with rent subsidies.
HLMs constitute 16% of all housing in France. There are approximately four million such residences, housing an estimated 10 million people. The standard of living in the HLM housing projects is often the lowest in the country.
72% of French HLMs built before 2001 are small buildings or individual houses. The average size of buildings is 20 apartments. From Wikipedia