It shall be the duty of the Building Inspector to administer and enforce the provisions of this chapter.

Should said Building Inspector be in doubt as to the meaning or intent of any provision of this chapter, or as to the location of any district boundary line on the Zoning Map, or as to the propriety of issuing a building permit or a certificate of occupancy in a particular case related to the provisions of this chapter, he shall appeal the matter to the Zoning Board of Appeals for interpretation and decision.

The Building Inspector shall adopt rules of procedure, consistent with this chapter, for the purpose of assuring efficient and uniform administration of its provisions.

If the Building Inspector should mistakenly issue a building permit which violates the provisions of the chapter, that building permit shall be invalid.