In the design process, attention is paid to historical research, sorting out historical materials including the Shanghai Urban Construction Archives, the British Archives' historical drawings and archives, and various historical records, and preparing a project history research report to accurately grasp the historical context. At the same time, attention is paid to the survey of the cultural heritage building itself, and laser point cloud scanning is fully adopted to collect accurate data and establish a large database to ensure the accuracy of the design benchmark drawings. These measures aim to strengthen the protection of historical buildings, respect the historical spatial pattern, and ensure that the original style of historical buildings is preserved