1, quadrilateral connection, central courtyard, the most obvious feature of Beijing quadrangle is four in one.

2, the veranda is connected, and the privacy is strong. A family can not only have close contact, but also give themselves space.

3, the shape is regular, the center is symmetrical, the typical feature of quadrilateral is the midline symmetry, and the usage is extremely flexible.

Siheyuan is a traditional residential form in Beijing. It took shape at the beginning of Liao Dynasty, and gradually improved in Jin, Yuan, Ming and Qing Dynasties, and finally became the most distinctive residential form in Beijing. The so-called four in one, "four" means east, west, south and north, and "combination" means that all houses are surrounded together to form a "mouth" shape.

Siheyuan layout

After hundreds of years of construction, Beijing quadrangles have formed a unique Beijing style from plane layout to internal structure and detail decoration. Regular quadrangles in Beijing generally face south according to the east-west hutongs. The basic shape is the north room (main room), the south room (inverted room) and the east and west rooms, which are separated on all sides and surrounded by high walls to form a four-in-one and open a door.

The gate is located in the southeast corner of the house. Generally, the total number of rooms is 3 rooms in the north room, 5 rooms in the front room, 3 rooms in the east room, 3 rooms in the west room and 4 rooms in the south room, 17 rooms with door openings and hanging doors. If each room is 1 1 to 12 square meters, the total area is about 200 square meters.

There is a yard in the middle of the yard, which is very spacious. There are flowers and trees in the courtyard and goldfish in the fish tank. It is the center of the courtyard layout, and it is also the place where people walk, light, ventilate, enjoy the cool, rest and do housework.