Except as hereinafter provided, no permit pertaining to the use of land or buildings shall be issued by any officer, department, or employee of this city, unless the application for the permit has been examined by the office of the director of public services and has affixed to it a certificate of the office of the director of public services that the proposed building or structure complies with all the provisions of this chapter. Any permit or certificate of occupancy issued in conflict with the provisions of this chapter shall be null and void.
('69 Code, App. A, § 10.3-1)