A building may be erected or altered on any lot held on the effective date of this Zoning Code (Ordinance 404, Passed March 25, 1968) in single and separate ownership, which lot is not of the required minimum area or width or is of such unusual dimension that the owner would have difficulty in providing the required open spaces for the district in which such lot is situated, provided a special exception is authorized.
(Ord. 404. Passed 3-25-68.)