In this paper we intend to detect spatial valorization trends and their territorial "weight" in the fluvial and estuarial front of the Metropolitan Region of Buenos Aires as a way to differentiate coastal subspaces elucidating the "weight of heritages".We start by reflecting on the space in motion, defined from its complexity. This makes us think about the metropolitan coast as a process that leads to morphological changes, due not only to the structuring cycles present in every metropolis but also to the characteristics transmitted by "territorial heritages" and the new emerging configurations (Carut, 2003 b). Thinking about the motion and complexity of a territory allows us to conceptualize the space through the work of Doreen Massey (2005), based on three propositions: * Space results from interrelationships, regardless of the scale. * Space is the sphere of possibility for the existence of multiplicity. * Because space is the product of "interrelations", it is always being made, becoming, never finished and never closed.