AbstractResidential building in town Pula in Croatia sustained structural damage through differential settlement, which occurred as a result of works in the nearby pit for sewage construction. Although no horizontal deflection was observed on the retaining structure of the pit, excessive vibration during installation caused consolidation of marine sediment soil on which the building rests. Building, which is more than 100 years old masonry structure, developed vertical and diagonal cracks on the outer bearing as well as inner walls, which widened from the ground floor to the top. Since differential settlements and tilting of the building continued after filling of excavation pit, remediation of the building was needed. Reinforced concrete beams were constructed under the masonry foundation strips as well as the jet grouting columns which transferred foundation loads to bedrock. Structural strengthening was done simultaneously. After the remediation, settlements and tilting soon subsided and stopped, while the monitoring equipment was left permanently on the building.