All special use permits and variances shall expire and terminate ninety (90) days after the date of the granting of such special use permit or variance unless a building permit has been issued for the construction authorized by such special use permit or variance, or if no construction is authorized, then unless a certificate of zoning compliance has been issued for such authorized use. The board of adjustment may, upon written request of the affected person, extend the time for the issuance of a building permit or certificate of zoning compliance for sixty (60) days. In the event the building permit for the construction so authorized is canceled, such special use permit or variance shall thereupon expire and terminate. (Ord. 876, 1-17-2008)