This is an intervention that, beyond meeting the demands of contemporary social housing - compact, economical, sustainable - achieves involved in building the place sensitively: a careful implementation where the complicity between the built and the free space emphasizes the quality of the environment - the Garraf Natural Park making it the main value to build both the urban boundary as the space community relationship. The arrangement in three buildings generates open spaces linked to urban fabric, converted into public squares that link the environment and neighboring interventions. Furthermore, this fragment allows solving the problem of slope of the plot. A slightly sloping retaining walls as the natural slope of the land and the street configured patios, plazas and other open spaces, creating a development strongly linked to the site. In this topographical character of free space chromatic proposal which identifies the new intervention with the natural park becoming complicit in its natural beauty adds. Thus, the limestone facades color cubes assimilates the local stone. The three main facades, each of a different green, are abstracting the native trees.