Within five (5) working days after the receipt of the application for a zoning certificate, the Community Development Director or his designee shall either approve or disapprove the application in conformance with the provisions of this code. When plans are required, one copy of the plans shall be returned to the applicant after the Director or his designee has marked such copy either as approved or disapproved and so attested by his signature on the copy. One copy of the plans, similarly marked, shall be retained by the Director or his designee.