In France, the default speed limit for cars inside built-up areas is 50 km/h unless signs indicate otherwise.
French road signs identify the beginning of a built-up area with a town-name sign, and this normally brings the urban speed limit into effect. Authorities can set lower limits, especially in residential areas, around schools, or in zones designed to reduce traffic danger.
The 50 km/h rule applies to roads within built-up areas, but it is not a universal speed for every urban street. Local signs may establish 30 km/h zones or other restrictions. Drivers must follow the posted limit rather than relying only on the general rule.
France also uses different default limits outside built-up areas. Rural roads and divided roads can have separate national or local limits, and weather conditions may affect some maximum speeds. The town sign, rather than the appearance of buildings alone, is the key legal reference.