Grey Green Blue. Compose with nature the landscape-city

Climate change, environmental decay, widespread pollution, rapid consumption of resources, radical modification of ecosystems are among the emerging issues for the contemporary project. Do they have the potential to alter the urban form and the design culture? The territorial dimension of the settlements, which incorporate and are incorporated by nature, requires the transformation of the point of view on the phenomena, establishing connections between apparently irreconcilable elements. In order that the figures of artifice can weave new resilient relationships with nature, the project is called to identify resources within the figures themselves, re-conceptualizing the accumulated artificial residues and existing stagnant structures as an instrument of ecological evolution, a resource to be exploited and enhanced. Urban nature - here understood as quality green and blue spaces and infrastructures - is at the top of the list of materials on which to base the composition of the contemporary “landscape-city” and the re-generation of parts-places of it. This issue is investigated through the case study of an Alpine urbanized landscape marked by numerous low-tech and low-spatial articulation gray spaces. The topographical, anisotropic, complex context allows us to recognize the heterogeneity and discontinuity of these regenerated spaces as a value, different things that can be together and cohabit in archipelagos and networks, to produce ecologies and repair landscapes within an idea of large-scale architecture built through the landscape.