The competition was about rethinking the border between the natural park of Collserola and the City of Barcelona. The area is located in the north side, which is one of the main entrances by car of the city. All these highway lanes have fragmented the urban weave and isolated the neighborhood of la Trinitat from the city. At the same time the green spaces system has been broken up by the road system and lost its flow.

Our concept aims to define the edge between the city and the mountains as a surface, a space occupied by domesticated fields, a place between nature and city where you can find community vegetable gardens, and open air green spaces. The other part of the proposal was to recover the flow of the green spaces system of Barcelona metropolitan area, connecting the Collserola natural park with Besòs river and Serra Marina, the mountain system on the other side of the highway. Recovering the valley section of the place and getting a stronger and continuous ecosystem.