“The Neighborhood City” introduces the concept of “neighborhood” as a social and physical construct that plays a crucial role in shaping social and cultural life in urban areas. Here, the distinction between the concepts of “distric” and “neighborhood” within complex urban contexts is examined. While the district is associated with a space of deep and deep-rooted social interactions, driven by cultural, ethnic or historical connections, the neighborhood is presented as a more functional dimension of urban life, linked to the organization of daily activities and accessibility to essential services, showing how both concepts, although linked, manifest distinct urban dynamics that may or may not match. From a critical analysis, the text explores the theoretical thoughts of several authors to illustrate which processes affect the proper shaping of a district and how effective neighborhoods combine varied uses that promote safety and vitality. In addition, it discusses processes and phenomena that directly affect the shaping of such a duo and that directly influence social integration and the implementation of urban policies. The proposal presented here suggests a return to the neighborhood from a model of units as nuclei of community cohesion and urban functionality toward the conformation of the district and neighborhood from the local level with a view toward global articulation.