Nothing contained herein shall require any change in the plans, construction, size, or designated use of any building, structure, or part thereof for which a building permit has been granted by the Inspections Superintendent before April 20, 1970 or any amendment thereto; provided, however, that where construction is not begun under an outstanding permit within a period of 90 days subsequent to April 20, 1970 or an amendment thereto, or where it has not been prosecuted to completion within 18 months subsequent to April 20, 1970, any further construction or use shall be in conformance with the provisions of this chapter.
(Prior Code, § 9-4092) (Ord. passed 4-27-1970; Ord. passed - -)