The individual house could be interpreted in the 60's and 70's as a succeeded realization of the "city in the country, whereas today, one sees there the accumulation of a set of negative and expensive elements for the society. An illustration of these phenomena is given on the base of the region of Poitiers.
SALLEZ, A. and COUTROT, B. (2009). Considérations sur les densités urbaines , et Poitiers. Revue d'Économie Régionale & Urbaine, 2, pp. 329-343.