(a) Where an error in judgment or procedure resulted in granting an improper variance or in denying an appeal, a motion to reconsider made by a board member or upon motion of any interested party, may be considered and the prior action of the Board rescinded if vested rights are not violated.

(b) A petition for a variance having been denied or a decision or order of the Department of Planning and Development having been affirmed, a petition seeking a similar variance or relief shall not be entertained by the Board of Adjustments until the expiration of a minimum of one year. [Code § 12.36-19.]