When uncertainty exists as to the boundaries of districts shown on the Official Zoning Map, the following shall apply:
(A) Boundaries indicated as approximately following the center lines of streets, highways or alleys shall be construed to follow such center lines;
(B) Boundaries indicated as approximately following platted lot lines shall be construed as following such lot lines;
(C) Boundaries indicated as approximately following city limits shall be construed as following such city limits;
(D) Boundaries indicated as following railroad lines shall be construed to be midway between the main tracks;
(E) Boundaries indicated as following shore lines shall be construed to follow such shore lines and in the event of change in the shore line shall be construed as moving with the actual shore line; boundaries indicated as approximately following the center lines of streams, rivers, canals, lakes or other bodies of water shall be construed to follow such center lines;
(F) Boundaries indicated as parallel to or extensions of features indicated in divisions (A) through (E) above shall be so construed. Distances not specifically indicated on the Official Zoning Map shall be determined by the scale of map;
(G) Where physical or cultural 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 (F) above, the Board of Appeals shall interpret the district boundaries;
(H) Where a district boundary line divides a lot which was in single ownership at the time of passage of this chapter, the Board of Appeals may permit the extension of the regulations for either portion of the lot not to exceed 500 feet beyond the district line into the remaining portion of the lot.
(`00 Code, § 11-304)