The Board of Zoning Appeals shall decide all applications and appeals within thirty days after the final hearing thereon.
A certified copy of the Board's decision shall be transmitted to the applicant or appellant, and to the Zoning Inspector. Such decision shall be binding upon the Zoning Inspector and observed by him, and he shall incorporate the terms and conditions of the same in the permit to the applicant or appellant, whenever a permit is authorized by the Board.
A decision of the Board shall not become final until the expiration of five days from the date such decision is made, unless the Board finds the immediate taking effect of such decision is necessary for the preservation of property or personal rights and shall so certify on the record.