Design of indoor sunken courtyard

Quick answer：

The design of an indoor sunken courtyard involves creating a garden space within a building by lowering the level of the garden area relative to the surrounding floors. This design can enhance privacy, create a sense of space, and bring the natural elements of a garden into an urban or indoor setting. Key considerations include waterproofing, ventilation, and ensuring sufficient natural light. The design may also incorporate features like water features, plants, and seating areas to enhance the indoor courtyard experience.