The static situation of Palazzo Bono (1605), open to the public and used as a kindergarten and formerly used as private property of a noble family, presents deficiencies that make it necessary to proceed with a consolidation intervention. The simplest and most decisive intervention has been found in the insertion of new steel chains which will be an efficient link between the male walls so that the horizontal thrust of the times is counteracted. Therefore, we have chosen an intervention that takes account of the many functional needs and constraints at the four levels.