This study, based on the survey of a given number of buildings - both monumental and of the current - construction type, that have undergone partial consolidation interventions either recently or spread out in time - has taken into account the economic incidence of the executed projects and the static-structural performance obtained. The study has taken into account how the apparent economy of the initial cost is unconvincing and most of all how the choices made have determined the static conditions of a high percentage of fabrics examined as well as the acceleration of the decay. The listing of buildings also has, amongst other things, evidenced: the epoch of construction of the buildings and their transformation in time, the morphology as well as the constructive typology, the incidence of the seismic damage, the general conditions and the current utilization.