No buildings or other structures shall be constructed, improved, or altered, enlarged or moved, nor shall any use or occupancy of premises within the city be commenced or changed, nor shall any condition of or upon real property be caused or maintained, after the effective date of this code except in conformity with conditions prescribed for each of the several zones established hereunder. It shall be unlawful for any person, firm or corporation to erect, construct, establish, move into, alter, enlarge or use, or cause to be used, any building, structure, improvement or use of premises located in any zone described in this code contrary to the provisions of this code. Where this code imposes greater restrictions than those imposed or required by other rules or regulations or ordinances, the provisions of this code shall control. This code shall apply to all actions which have not reached the following steps:
A. Site review: final approval by city staff or the planning commission;
B. Partitioning and subdivision: approval of preliminary (tentative) plat;
C. Planned unit developments: final approval by the planning commission;
D. Signs: final permit approval;
E. Variances and conditional use permits: approval by the planning commission;
F. Zone change: ordinance enactment.
(Ord. 89-O-446 § 1)