What is the floor spacing standard on the seventh floor? How can I not block the light on the first floor?

According to national regulations, the ratio of story spacing to story height is 1: 1, which means the story height must be at least the same as the story spacing. The height of this house is 3 meters. The building is seven stories high, which means 3× 7 = 2 1. Therefore, the lighting of the first floor with a floor spacing greater than 2 1 m will not be affected. So the distance between buildings is 35 meters, which is deceptive. Seven-storey buildings belong to multi-storey buildings, and the general building spacing standards are as follows:

1, generally, the distance between buildings in old urban areas is 1.7 times of the original building height;

2. In the newly-built low-rise building, the building height is 1.5 times;

3, high-rise building sunshine analysis (using special design software to make the analysis results), in cold weather full window sunshine for 2 hours;

4. There are some special cases about the fire prevention distance between multi-storey buildings, depending on the specific situation of the house.

Extended data:

Distance between the front and rear of the house: the distance between the two floors is not less than 65438+ 0.2 times of the height of the front building. According to the national regulations (design code), the sunshine time from winter solstice is not less than 1 hour (bottom window of residence). The distance is the height from the outdoor terrace of the building to the eaves of the building /tan(a)a—— the solar altitude angle at noon from winter to Sunday.

Left-right spacing of houses: 6m for multi-storey buildings (4-6 floors and below), 9m for multi-storey buildings and high-rise buildings (12 floors and above), and 13m for high-rise buildings.