4.2.4   Previously Issued Building Permits
   (A)   Any development for which a building permit has been issued prior to the effective date of this Ordinance, or prior to the effective date of any amendment hereto which renders the development non- conforming, may be carried out in accordance with that building permit and shall be deemed lawfully existing under the terms of this Ordinance, provided that:
      (1)   The permit was validly issued;
      (2)   The permit has not expired;
      (3)   The permit has not been revoked.
   (B)   This Section shall not apply where the property owner consents to making the development conform to the requirements of this Ordinance, or any amendment thereto, which would make the development non-conforming.