The old Marquis Chu Guangche moved out of Anrong Hall when he was fifteen and moved into Jin Court in the outer court. Then, he began to renovate Anrong Hall. The first, second and third houses didn't need renovation, only the furniture in the main room of the third house needed to be changed. The key was that the fourth and fifth houses needed to be renovated.
In the future, Chu Lingxuan and Chen Afu would live in the third house, their two young brothers would live in the fourth house, and Chu Hanyan and Yu'er would live in the fifth house.
Chu Hanyan, as a grown girl, should have her own courtyard, but she clearly didn't want to. Chen Afu also wanted to keep her around to learn more about the world, so she let her be until she turned twelve and then live separately.
There is no north room in the fourth house, only the east and west rooms. Yu lived in the east room and Ming lived in the west room.