It shall be unlawful to use or permit the use of any building, structure or premises, or part thereof, hereafter created, erected, changed, converted, altered or enlarged, wholly or partly, in its use or structure, until a certificate permitting the occupancy thereof shall have been applied for and issued therefor by the Construction Official of said Borough of Westville. Such certificate shall show that such building, structure or premises or part thereof and the proposed use thereof are in conformity with the provisions of this chapter or a determination of the Land Use Board.