The document discusses a case study of retrofitting the Palazzo Gagliardi Sardi building in L'Aquila, Italy using base isolation after it was damaged in the 2009 earthquake. Tensa used a combination of 53 high damping rubber isolators and 49 free sliding pot bearings at the isolation interface to limit input forces and torsional effects while preserving the building's historical value. This approach avoided an invasive structural intervention above ground and allowed for a simple conservative restoration, protecting an important building for Italy's artistic heritage and the city of L'Aquila.