The decline of the role of the State in urban development planning and the participation of the private sector in the production of urban space offers the possibility of new forms of urbanization, modifying traditional territorial structures. Changes generated by these dynamics are evident in the case of major Chilean cities, which show obvious traces of political discourses and strategies. By taking the city of Nueva Ciudad de Curauma as reference, the present article addresses the context in which the processes of urbanization in the Metropolitan Area of Valparaíso take place. To that effect, the circumstances that made possible the creation of Curauma; its current state; the typology of gated residential community that the city represents; and its current role in the Metropolitan Area of Valparaíso are contextualized. The article ends with reflections on territorial exclusion processes triggered by these new forms of urbanization.