What about the property with a window behind the house?

If the property is reported to the urban management bureau, these departments will seal your door and force you to return to the original state.

I think it's no big deal. If you ask the person in charge of the property out, it is estimated that a cigarette will do nothing.

However, I still have time to go to the construction bureau to fill in the formalities. With the approval of the construction bureau, it is officially approved, and it is no problem for others to report it.