In the analysis of building sunshine, if winter solstice is adopted, what percentage should be satisfied from what time to what time? What should I do with the great cold?

The winter solstice is from 9: 00 am to 3: 00 pm, and the sunshine hours should be more than one hour. If it is a bad cold, it is from 8 am to 4 pm, and the sunshine time should be more than or equal to two hours.

According to Chapter 4, Point 9, Standard for Planning and Design of Urban Residential Areas, the spacing of residential buildings shall meet the provisions in Table 4.0.9, and in some cases, the following provisions shall also be met:

1, the sunshine standard of residential buildings for the elderly should not be less than 2 hours in winter;

2. Adding any facilities outside the original design building shall not reduce the original sunshine standard of adjacent houses, except for the barrier-free renovation of existing residential buildings and the installation of elevators;

3. The sunshine standard for new residential buildings in old urban reconstruction projects should not be lower than the sunshine hours 1h on cold days.

The main body of rights protection of lighting right is: the house developer, the owner of the house before the house is sold, the buyer who has not obtained the real estate license and has paid the money, and the lessee of the house can all be the main body of rights protection of lighting right; The key of lighting right is that the owner's lighting is substantially affected.

The construction of buildings shall not violate the relevant national engineering construction standards, and shall not interfere with the ventilation, lighting and sunshine of adjacent buildings.