(A)   Nothing herein contained shall require any change in the plans, construction or designated use of a building, the foundation for which has been completed constructed at the time of the adoption of this subchapter, and the remaining construction of which shall have been completed within one year of the date of the adoption of this subchapter.
   (B)   In addition, any commercial or industrial building or structure, for which a building permit has been approved by the city not more than 12 months prior to the adoption of this subchapter may be constructed according to the terms of that building permit.
(2005 Code, § 12-11-5)