A. When there are existing dwellings on the lots situated immediately to each side of a given lot and each of those neighboring lots has less than the required street yard depth, the street yard of the subject property may be reduced to the average street yard of those two abutting lots.
B. When there is an existing dwelling situated on a lot immediately to either side of a given lot which fronts on the same street, and such existing dwelling has a street yard which is less than half of that required in the zone, the street yard of the subject property may be reduced to a depth which is halfway between that normally required in the zone and that of the existing dwelling on the neighboring lot.
C. If, on the effective date of the ordinance codified in this title, a lot or the aggregate of contiguous lots held in a single ownership has less than the required area or width, the lot or lots may be occupied by a permitted use subject to the other requirements of the zone; provided that if the deficiency is one of area, residential uses shall be limited to single-family dwellings; and further provided that if the deficiency is one of width, each required interior yard may be reduced by one foot for each four feet of deficient width. In no case, however, shall such reduction result in an interior yard of less than five feet.
D. Where two or more contiguous substandard recorded lots are in common ownership and are of such size to constitute at least one conforming zoning lot, such lots or portions thereof shall be so joined, developed, and used for the purpose of forming an effective and conforming lot or lots. Such contiguous substandard lots in common ownership shall be considered as being maintained in common ownership after the effective date of the ordinance codified in this title for zoning purposes. (Ord. 740 section 10.3.05(H), 1984; Ord. 1237, 2007)