A local account identifies Hengyugong Residence Museum in Dayan’s Wensheng Lane as a protected historic house displaying the form called Four Wings and Five Courtyards. The name counts a central courtyard and four smaller corner light wells within a compound enclosed by four building ranges. A wing can contain several rooms; the term does not mean a house with only four rooms.
This arrangement makes the spaces between buildings as important as the buildings themselves. The main court provides a shared centre, while the smaller courts bring openings into the corners of the compound. Seen as a plan, the house becomes a relationship between enclosed rooms and open sky, with different scales of light and movement.
