(the subject of a draft amendment in 2012) defined the segmentation of the commune into 9 districts: Croix de Berny / La Fontaine, Coulée verte, Centre-ville / Hôtel de ville, Centre-ville / Mounié, Pajeaud, Paul-Bert, Noyer-Doré / Baconnets, Rabats, and Industrial Zones. Antony has of streets of which are local roads, departmental and national roads for which the city is responsible for maintenance, and of private roads. Housing To cope with the increasing number of people since the 1950s two interesting Castors (self-construction cooperative) experiments took place in Antony in 1953 and 1954. The Castor was responsible to build his own home there and to pay close attention. After the Second World War, before the housing shortage, the French decided to build their own houses by joining in anonymous cooperative societies. Thus companies were created, such as "The Cricket of Île-de-France" and "The Castors of Bièvre". In 1953, the Company of Counters of Montrouge which had allotments at Antony (located behind the square Marc Sangnier on the border with Fresnes) offered its employees to sell the land at a nominal price. Nearly 150 houses were built between 1953 and 1957. Their owners were fully invested in these constructions, working on weekends and after their workday. The rules were very strict: rest was only allowed one Sunday per month and only during a week of paid leave. The allocation of houses to employees was made by lot, one each until every house was built. Many houses are still occupied by the original Castor. The housing seen in Antony today represents a diversified heritage: ancient houses in quarry stone, individual Art Nouveau house, Art Deco houses, and contemporary architecture. Buildings built in the 1960s are being renovated while in recent years small buildings have replaced the old houses along the RD920 (ex-RN20) to achieve a continuous frontage. In a survey by the weekly Le Point on the cities of France "where we saw the best", Antony is very well ranked in almost all areas studied, notably in first position for housing. In 2017 in Antony there were 28,841 housing units including 26,734 primary homes or 92.7% of all dwellings. Second homes and casual accommodation numbered 424 units or 1.5% of the total. The number of vacant houses totaled 1,684 or 5.8%. Of all of these units there were 9,275 individual houses (32.2%) and 19,394 units in shared buildings (67.2%). The average number