Valle Galeria is a territory deeply stressed not only by the presence of Malagrotta landfill (the biggest in Europe, which treated more than 50 million of waste), but also by the outnumbered plants classified as potential serious risk to public health in the context of “SEVESO II” (Dlgs n.334 of 1999.08.17) and concentrated in a narrow space, definitely compromising the air, soil, aquifers quality and the Rio Galeria. The aim of the project is the restitution of an area based on a self-renaturalization. Far away from an artificial “park”, our idea emphasizes the creation of a site focusing on gradually nature changes. The project assumes the thesis that the environmental damage can’t be repaired by who generated it. Our plan brings to a pure natural restoration, usable for scientific research purposes. But, there is an only limited human intervention and no maintenance at all afterwards in the buffer areas, necessary to the connections between the damaged zones.