What are the criteria for an attached house for immigration?

The auxiliary room is relative to the main house, and now it is usually called a miscellaneous room.

The main house refers to a house with a complete structure and used for people's residence, production, office and entertainment. Generally, the floor height is not less than 2 meters.

Miscellaneous houses refer to attached houses with complete floor slabs, four walls, doors and windows, and floor heights less than 2 meters, such as houses with eaves, side buildings, and stilted buildings on the ground floor.