If a permit is not secured within 18 months after plans have been filed for checking such plan check shall expire and no permit shall be issued until the plans are rechecked and approved and a new plan check fee paid. (Amended by Ord. No. 167,969, Eff. 7/11/92.)
EXCEPTION: The Department or the Board may grant extensions of time if a permit applicant submits in writing sufficient evidence that unusual conditions or circumstances precluded the securing of the permit within the allocated time.