Whether it is illegal or not, it is illegal as long as one of the following conditions is met:

(a) buildings built without application or approval, without obtaining the construction land planning permit and the construction project planning permit;

(2) changing the buildings built according to the provisions of the construction project planning permit without authorization;

(three) buildings built without changing the nature of use;

(four) buildings that have not been demolished into permanent buildings after the expiration of the temporary building construction period;

(5) Forging relevant materials to defraud the building approved by the competent department.