When uncertainty exists with respect to the boundaries of the various districts as shown on the zoning map, the following rules shall apply:
(A) District boundary lines are either the centerlines of railroads, highways, streets, alleys or easements, or the boundary lines of sections, quarter-sections, divisions of sections, tracts or lots of such lines extended otherwise indicated.
(B) In areas not subdivided into lots and blocks, wherever a district is indicated as a strip adjacent to and paralleling a street or highway, the depth of such strips shall be in accordance with the dimensions shown on the map from section, quarter-section or division lines, of center lines of streets, highways or railroad right-of-way unless otherwise indicated.
(C) Where a lot held in one ownership and of record on August 4, 1986, is divided by a district boundary line, the entire lot shall be construed to be within the less restricted district, provided that this construction shall not apply if it increases the less restricted frontage of the lot by more than 25 feet.
(Ord. passed 8-4-86)