The original architectural drawings and floor plans of the four family residential quarters can be used for learning and reference. Including Room 5011, Unit 3, Building 6, Jiulong Mountain; Four rooms, two halls, one kitchen and two bathrooms. Room 502, Unit 1, Building 26, Aili Mountain; Three rooms, two halls, one kitchen and one bathroom. Room 1804, Unit 1, Building 16, Shimao West Lake; Three rooms, two halls, one kitchen and two bathrooms. Room 302, Unit 3, Building 12, Huilong Yayuan; Four rooms and two halls