Recently, vibration in buildings in old residential districts has been increasing.These buildings are brick-concrete structures, and are multi-story residences, generally with 6 ~ 7 floors.In this study, the natural frequency of buildings in a district is empirically estimated.Combining with the in-situ test results, the vibration caused by heavy vehicle traffic or braking and starting of vehicles at bus station, whose frequency is close to the natural frequency of buildings in the district, is the main reason of vibration in buildings.Considering the characteristics of the study district, popular methods to reduce the vibration here are analyzed to obtain the most suitable method for the district.Cast-in-place bored piles in rows are selected for this district and a preliminary solution for vibration reduction is presented.