In any district where dwellings are permitted a one- family detached dwelling may be erected on any lot of official record as of the effective date of this chapter, irrespective of its area or width, provided the owner of the lot does not own any adjoining property, except that no lot shall be deemed to be less than 50 feet wide for the calculation of yard requirements and provided further:
(A) The sum of the side yard widths on any such lot need not exceed 30% of the width of the lot, but in no case shall the width of any side yard be less than then 10% of the width of the lot, provided, however, that on a corner lot the width of the side yard adjoining the side street lot line shall not be less than eight feet or 20% of the frontage, whichever is the greater.
(B) The depth of the rear yard on any such lot need not exceed 20% of the depth of the lot, but in no case shall it be less than 20 feet.
(C) Where three or more contiguous unimproved lots of record with less than the required area and width are held. by one owner the Commission may require replatting to fewer lots to permit compliance with minimum yard requirements.
(Ord. 76-43, passed 12-13-1976)