ABITARE SOCIALE is an interdisciplinary research funded by the Region of Tuscany, which deals with social housing profiles for different family and social, including the so-called band “gray” of citizens, both the rent that property. His program includes, in a model of integrated design, the various stages of planning and urban design, architecture and technology, new procedures and new models of financing and administrative management. After a survey on the state of the art in Italy and Europe, the analysis of numerous case studies and identification of best practices to build the Guidelines for the region Tuscany, research has addressed a workshop on developing a design experiment some areas of the paradigmatic Toscana.L’esito general research is to formulate appropriate settlement patterns, promote innovation in social housing, an integrated process in the legal system Tuscan and worldwide implementation, methods and equalization compensatory mode financing and management of the assets for rent.