(a) Subsequent to the effective date of this Zoning Ordinance, no change in the use or occupancy of land nor any change in the use or occupancy of an existing building shall be made, nor shall any new building be occupied, until a certificate of occupancy has been issued by the City Building Inspector. The certificate of occupancy shall state that the land and/or building complies with the provisions of this Zoning Ordinance.
(b) No excavation, erection, or alteration of any building shall be permitted before an application has been made and approved for a building permit, and no building or premises shall be occupied until a certificate of occupancy is issued.
(c) A record of all certificates of occupancy shall be kept on file in the office of the Zoning Administrator. Copies shall be furnished for $2 on request by any person having an interest in the land or building affected.