Sustainable places in urban settings: abandonments and returning at the time of Agenda 2030

If we consider the theme of abandoned places on the one hand and their rebirth on the other one soon realizes how this issue must necessarily be traced back to the great question of sustainability, which goes beyond the borders of States, uniting all the peoples of the Earth in the difficult path that should lead them to the achievement of shared goals. It is no coincidence that Agenda 2030 set sustainable settlements as one of its seventeen strategic sustainability objectives. With the aim of providing useful food for thought for the debate on the principles and values to be applied in the planning and construction of sustainable settlements, the contribution will then focus on the theme of abandoned sites and the processes of return and re-signification that are manifesting in recent times, with particular reference to the urban context.