Architecture, Building and Structure Design Jiangnan No.1 Courtyard Exhibition Hall by gad Jiangnan No.1 Courtyard is an exhibition hall located at Xiaoshan Innovation Polis in Hangzhou, China. The building stands next to a lake, and the setting recalls a Jiangnan watery town. Herringbone sloping roofs, white walls and black tiles form a continuous and rhythmic image. The interior is organized around a landscape atrium with a light well, following the spirit of the traditional courtyard. Natural light enters the rooms through the atrium glass. The entrance uses imitation wood poles that form a semi-transparent screen.