Sunken Courtyard Design Plan

Quick answer：

The 'Sunken Courtyard Design Plan' refers to a architectural blueprint or drawing that illustrates the design of a sunken courtyard in a building. This type of design often involves creating a lower level courtyard surrounded by higher level spaces, which can enhance privacy, provide a tranquil environment, and incorporate greenery or water features. The plan would typically include details such as the layout of the space, materials used, and structural elements.