If the Chief or Health Officer finds that any building or structure, or any portion thereof, is a fire or health hazard or dangerous building as defined in § 15.56.020, he or she shall report the same to the Director. If the Director finds that any building or structure, or portion thereof, is unsafe, hazardous or dangerous as defined in § 15.56.020, or if the Chief or Health Officer has reported to him or her that any building or structure, or portion thereof, is a fire or health hazard or dangerous as defined in § 15.56.020, he or she shall prepare a notice in writing stating in detail the conditions which render the building or structure, or portion thereof, a nuisance as defined in § 15.56.020.
(`78 Code, § 15.56.040.)