In recent times, new forms of urbanization are breaking up with the traditional understanding of urban growth, urban models and layout, and the meaning of public space, among others factors. These new forms of urbanization include the gated communities, which this paper aims to define and characterize, discussing how they have transformed the socio-spatial components of the municipality of Metepec (Mexico). The changes can be identified by the recurrence of urban projects that currently define and redefine the urban image in Metepec. Gated communities also transform what has traditionally been understood as a street, breaking its continuity and its mobility, as well as installing atmospheres of fear in them. Both aspects are discussed in detail in different sections of the document.