Flat house with sunken courtyard floor plan

Quick answer：

A floor plan for a flat house featuring a sunken courtyard. This type of architectural design is commonly found in traditional Chinese homes, where the courtyard is lower than the ground level of the house. The sunken courtyard provides privacy, promotes ventilation, and is often used for gardening or leisure activities. The floor plan would typically include the layout of rooms, the position of the sunken courtyard, and any connecting paths or structures.