§ 1. [Required.]
No land shall be occupied or used and no building hereafter erected or structurally altered shall be occupied or used in whole or in part for any purpose whatsoever until a certificate is issued by the building commissioner, stating that the building and use comply with the provisions of this ordinance and the building and health ordinances of the City of Ballwin. No change of use shall be made in any building or part thereof now or hereafter erected or structurally altered without a permit being issued therefor by the building commissioner. No permit shall be issued to make a change unless the changes are in conformity with the provisions of this ordinance.