Territorios liminares. Los márgenes de la ciudad en el centro de un terreno común de la arquitectura

Despite the changes in the way we think and we live our "habitat", the physical environment continues to be intended as a platform that can be modified by the architecture and one of the first entries in the design process. Although the city has been changing its own grammar, there are a number of fertile places for the contemporary project that are still unexplored, that are nameless and not even recognized as parts of the city. The proposed research is framed in the field of urban design, trying to bring a particular type of physical territories on a common ground: the article aims to identify margin areas, recognizing their spatiality and the idea of city they potentially hold. Reviewing some marginal areas of big cities, the last part of the article focuses on some elements that have had a negative meaning for a long time, attempting to promote them to the rank of "fundamentals". Redesigning limits, rethinking boundaries, thickening the edges; these are all ways of projecting that distance between different parts of the city, a condition understood as ambiguous and disorienting until now.