Architecture, Building and Structure Design House D Living Space by Gangrong He House D is a reconstruction of an old house in China, planned for a family of three. The first floor holds the dining room, a Chinese kitchen, a Western kitchen, a courtyard and a space for pottery firing. The second floor contains the living room, a guest room and a laundry space. The third floor holds the master bedroom and a children's bedroom, and the fourth floor is a studio. Sunlight and airflow are used to improve the comfort of the interior. The layout supports continuous interaction between the residents and close contact with nature.