Submerged Street Courtyard Plan

Quick answer：

A submerged street courtyard plan refers to the layout and design of a courtyard integrated into the urban street system, where the courtyard is situated below street level. This design concept is often used in traditional Chinese urban planning, creating a unique urban space that combines public and private areas. It includes features such as stepped levels, water elements, and green spaces, which enhance the aesthetic and functional aspects of the city.