A. The minimum yard space required for one structure shall not again be considered as yard space for another adjoining structure.
B. No lot shall be reduced in area so that the yards or other open spaces and lot area become less than required by this title.
C. Except as may be otherwise required for setbacks along federal, state or county highway rights of way, the setback requirement for a front yard shall be as follows:
1. The depth required by the zoning district in which the lot is located.
2. In the event that forty percent (40%) or more of the lots fronting one side of a street within a block have established building setbacks, of a depth other than required for a front yard by the zoning district in which the lot is located, the front yard depth for each remaining lot, except for corner lots, shall be as follows:
a. Extend a line from the closest front corner of the nearest principal building adjacent to one side of the lot to the closest front corner of the nearest principal building adjacent to the other side of the lot.
b. Extend a line, at a point equidistant between the side lot lines the shortest distance between the front lot lines to a point where the said line intersects the line mentioned in subsection C2a of this section.
c. Extend a line at said point of intersection to the side lot lines, parallel to the front lot line. This line is the required setback line.
d. If no principal building exists on one side of the lot to the end of the block, then extend the line described in subsection C2a of this section to the point of intersection of the closest side lot line and front yard line of the corner lot on such street frontage.
D. On a through lot, either of the lot lines abutting a street right of way line in a given block may be established as the front lot line. However, when the front lot line of a lot in a block containing through lots has been established by an existing building, such front lot line shall be the front lot line for the remaining lots in the block. (Ord. 89-04, 4-3-1989)