How many ancient houses have entered the quadrangle?

An old bungalow with several rows of houses in front and back. A row called "Jin" and "Jin" is the level of old houses and quadrangles.

Once in the courtyard, also known as the basic courtyard, it is a quadrangle or three-in courtyard surrounded by four or three houses. This courtyard is characterized by three main rooms (north rooms), with a wing on each side of the main room, which makes it three main rooms with two ears and five rooms.

The three main rooms can be equipped with half-wing rooms on both sides, with four breaks and five breaks. There are three east and west wing rooms on the south side of the main house, which are arranged zigzag with the finished products of the main house. Opposite the main room is the south room, also called the inverted room, with the same number of rooms as the main room.

The second courtyard is formed on the basis of the first courtyard and extends along the longitudinal direction. When a quadrangle is expanded from a primary courtyard to a secondary courtyard, a partition wall is usually built between the Nanshan walls on the east and west wings to divide the courtyard into two parts.

Sanjin Courtyard was formed on the basis of the Second Hospital, and then developed in depth. Generally, a row of back rooms is added behind the main room, and the back room and the main room form a long and narrow backyard.

Jin Si Courtyard is a further extension of Sanjin Courtyard in the depth direction. The general practice is to add a row of buildings on the central axis of Sanjin compound behind Sanjin compound.

The first entrance, the hanging door, the second entrance, the main room or hall, the third entrance, the main room, the fourth entrance and the back building. Jin Si quadrangle is a large-scale residence and a typical empty quadrangle.