Effect.
Any special exceptions, variances or appeals authorized or granted by the Board of Adjustment either under the provisions of the Zoning Ordinance or under the authority granted to the Board of Adjustment under the statutes of the State of Texas, as may be amended, shall authorize the issuance of a building permit, or a certificate of occupancy, as the case may be, for a period of 180 days from the date of the favorable action on the part of the Board of Adjustment, unless said Board of Adjustment in its minutes shall, at the same time, grant a longer period. Provided, however, no building permit shall be issued pursuant to the granting of a special exception, variance or appeal by the Board of Adjustment until the expiration often days after the filing of the decision granting such special exception, variance or appeal in the office of the board. In the event any person entitled to do so should, within said ten days, appeal the decision of the Board of Adjustment to the courts, no permit shall be issued by the building official pursuant to such special exception, variance or appeal until the action of the courts supporting the decision of the board becomes final, and the issuance of a building permit or certificate of occupancy, as the case may be, is authorized for a period of 180 days from the date the action of the courts became final. If the building permit and/or certificate of occupancy shall not have been requested and issued within said 180-day period, or such extended period as the board may specifically grant, then the special exception, variance or favorable appeal shall be deemed waived and all rights thereunder terminated. Such terminating and waiver shall be without prejudice to a subsequent appeal to said board in accordance with the rules and regulations herein contained.