The work has as objective the reordering of existing material (cards, in trade and on-site surveys) concerning the condition of the grants of public land for use PLATEATICO throughout the city of Venice and return on digital mapping. Specifically data layers have been achieved with regard to PLATEATICI; COURTS BUILDING; UNITA’; VIEW CONES; It was also done a study on the criteria for the granting of public spaces in the historic center of Venice and design of the areas under study.