Tianjin sunken courtyard plan

Quick answer：

Tianjin sunken courtyard refers to the traditional courtyard architecture in Tianjin, China, where the courtyard is located below the ground level. The plan of such a courtyard would typically include detailed layouts of the spaces, pathways, and structures within the enclosed area. These courtyards are characterized by their unique design, which incorporates elements of Chinese garden architecture, and are important cultural heritage sites.