Where uncertainty exists with respect to the boundaries of any of the aforesaid districts as shown on the zoning map, the following shall apply.
(A) Boundaries indicated as approximately following the centerlines of streets, highways, alleys, streams, rivers, or other bodies of water, shall be construed to follow such lines.
(B) Boundaries indicated as approximately following platted lot lines shall be construed as following such lot lines.
(C) Where district boundaries are so indicated that they are approximately parallel to the centerlines of streets, highways, or railroads, or rights-of-way of same, such district boundaries shall be construed as being parallel thereto and at such distance there from as indicated on the zoning map. If no distance is given, such dimension shall be determined by the use of the scale shown on said zoning map.
(D) Where a district boundary line divides a lot of single ownership, the district requirements for the least restricted portion of such lot shall be deemed to apply to the whole thereof, provided that such extensions shall not include any part of such lot more than 35 feet beyond the district boundary line.
(E) Where physical features existing on the ground are at variance with those shown on the official zoning map, or in other circumstances not covered by divisions (A) through (D) above, the Board of Adjustment shall interpret the district boundaries.
(Prior Code, Ch. 1 Art. VII § 703)