In the event that uncertainties exist with respect to the intended boundaries of the various districts as shown on the zoning map, the following rules shall apply:
A. Where the designation of a boundary line on the zoning map coincides with the location of a street or alley, the centerline of such street or alley shall be construed to be the boundary of such district;
B. Where the district boundaries do not coincide with the location of streets or alleys, but do coincide with lot lines, such lot lines shall be construed to be the boundary of such district; and
C. Where the boundary line of a zoning district does not coincide with the location of streets, alleys, or lot lines, the district boundaries shall be determined by the use of the scale shown on the zoning map except as may otherwise be determined, as a special exception, by the board of adjustment that a zoning district delineated by such boundary line dividing a single lot, tract, or parcel of land under one ownership may be extended to the nearest property line. (Ord. 5916, 8-9-1999)