In several Latin American cities, metropolitan expansions are parallel to the densification of the central city expressed in the proliferation of real estate developments that impact the built city. Residents of those areas display protest actions because they perceive deterioration in their environment. Therefore it is important to analyze some "proximity conflicts" that arise, recovering one of the main orientations of the sociology of conflict, which is to inquire about their social productivity in three dimensions: the territorialization, the eruption of conflict in public space and local updating of the law. This article is an attempt to approach recent urban conflicts from this perspective through the analysis of the conflict that arose from the construction of new buildings in the central zone of the metropolitan area,of Buenos Aires, dialoguing with a case fiom Mexico City, where similar conflicts have emerged.