Ganxi House is located in Qinhuai District of Nanjing City, also known as the former residence of Ganxi or Ganjia Courtyard. It was built in the Qing Jiaqing period. It is commonly known as nine and a half and a half and is the largest private residence in China. Known as the three major landscapes of Nanjing, Ming and Qing Dynasties, the city wall has a high historical, scientific and tourism value. It is the largest and most intact private residence in Nanjing. Ganxi's former residence is not a Huizhou architecture, nor a complete Soviet-style architecture. It is the same as Nanjing Gaochun and Liuhe. It has Nanjing's own architectural style. The whole building reflects the cultural taste of the Jinling family. Ethical concept. The layout of the building is strictly arranged in accordance with the patriarchal concepts and family system of the feudal society. The children and grandchildren are involved in the same period. The size of the house is huge and the grade is strict. The location, decoration, area and shape of all kinds of houses are unified. The level of regulation.