React 63 VIV.PROM.PÚBL.EDIF.PTE.COLGANTE The action consists of the rehabilitation of 63 public development homes, “Puente Colgante” building, Valladolid, with the aim of improving energy efficiency in the building, as well as the use of renewable energy and the reduction of polluting emissions and greenhouse gases. The houses will be incorporated into the public rental park of the Community of Castilla y León