All departments, official and public employees of the city vested with the duty or authority to issue permits or licenses shall conform to the provisions of this chapter, and shall issue no permit or license for uses, buildings or purposes in conflict with the provisions of this chapter and any permit or license issued in conflict shall be null and void. It shall be the duty of the Building Inspector of the city to enforce the provisions pertaining to the erection, construction, reconstruction, moving, conversion, alteration or addition to any building or structure.
(`67 Code, § 10-17-4)