Except in cases of emergency for the immediate preservation of life and property, before any action is taken to abate any public nuisance as defined in Section 4025 hereof, such building or structures shall be inspected by the building inspections department of the county and approval given for such abatement. In the event that the director of the building inspections department determines that such building constitutes a public nuisance, it shall be forthwith condemned and shall not be occupied or used until made safe, and its use authorized by said building inspections department. (Ord. 303 §1, 1984).