For new uses. After completion of the whole building or structure and upon sworn application by the owner or his duly authorized agent, setting forth such facts as the Zoning Officer may require, and after actual inspection of the premises by the Zoning Officer, he/she shall, upon finding the facts to be as represented, issue, in duplicate, an occupancy permit, certifying that the premises comply with the provisions of this chapter and may be used for the purposes set forth in the permit, which purposes shall conform with the requirements of this chapter. No change of use shall be made in any building, structure or premises now or hereafter erected or altered that is not consistent with the requirements of this chapter. Any persons desiring to change the use of his premises shall apply to the Zoning Officer for an occupancy permit, setting forth such facts as may be required. A record shall be kept of all occupancy permits issued, and the original applications for building permits. No owner, tenant or other person shall use or occupy any building or structure thereafter erected or altered, the use of which shall be changed after the passing of this chapter, without first procuring an occupancy permit, provided that an occupancy permit, once granted, shall continue in effect so long as there is no change of use, regardless of change in the personnel or tenants or occupants.