1215.03 CHANGES IN A NONCONFORMING USE.
   A.    Changes of Use Restricted.
      1.    Changes to a Less Restricted Use Prohibited. No change of a nonconforming use shall be made to a less restricted use.
      2.    Changes to a More Restricted Use. A nonconforming use may be changed to any use permitted in this Zoning Ordinance in a more restrictive district provided no structural changes are made. Such use would remain a nonconforming use unless the use is permitted in the district in which it is located.
      3.    Changes to a Use of Similar Nonconformity. Any change of a nonconforming use to a use of the same degree of nonconformity, as defined in Chapter 1211, Definitions and Rules of Word Usage, shall be made only upon approval of the Board of Zoning Appeals and only if the Board finds that the proposed use is not more injurious to neighborhood property values than the existing use.
   B.    Changes to a Nonconforming Structure. No significant structural changes shall be made to a nonconforming structure unless it is changed to bring the structure and use into conformity or unless the change is specifically approved by the Board of Zoning Appeals. Such changes, additions and/or improvements shall upgrade the activity and make the resulting development more compatible to the district in which it is located and more compatible with adjacent uses. Such expansion or addition shall require a total Site Plan Review for the entire parcel.