Design drawing of an open sunken courtyard

Quick answer：

An open sunken courtyard design typically involves creating a courtyard at a lower level than the surrounding ground, which can be accessed through stairs or ramps. This design is often used to create a serene and private outdoor space within a building or a complex, offering a retreat from the hustle and bustle of daily life. Key elements in such a design might include landscaping, water features, and architectural features that enhance the sense of seclusion and tranquility.