Peri-urban spaces are often considered the project element on which founding the development of sustainable urban systems. Within the territorialist approach this is possible only if the areas object of intervention could include local territorial systems, i.e. if they are able of express their own identity and ability of selforganization in relation to these projects. This paper aims to explore whether in the local system of Chieri, in the Turin metropolitan area, there are these requirements.
Keywords: Peri-urban, local territorial system, sustainable urban system, Chieri local system.