(A) When two or more parcels of land, each of which lacks adequate area and dimension to qualify for a permitted use under the requirements of the use district in which they are located, are contiguous and are held in one ownership, they shall be used as one zoning lot for such use.
(B) Any single lot or parcel of land, held in one ownership, which was of record at the time of adoption of this chapter, that does not meet the requirements for minimum lot width or area, may be utilized for a permitted use, provided that yards, courts or usable open space are not less than 75% of the minimum required dimensions or areas.
(C) A one-family dwelling constructed prior to enactment of the zoning regulations, or amendments thereto, located in any residential zoning district, except R-6, which is nonconforming in terms of lack of width or depth in one of the yards required in the district in which it is located, is permitted to be enlarged, provided the enlargement is not constructed in the nonconforming yard and the nonconforming yard meets the following minimum width or depth:
(1) A nonconforming front yard to be no less than 50% of the front yard required for the district in which the lot is located.
(2) A nonconforming side yard to be no less than 75% of the side yard required for the district in which the lot is located.
(3) A nonconforming rear yard to be no less than 75% of the rear yard required for the district in which the lot is located.
('71 Code, § 11-4-7) (Ord. 1413, passed 9-13-60; Am. Ord. 2926, passed 10-19-94; Am. Ord. 3297, passed 2-13-01)