A.
A nonconforming zone lot of official record existing at the effective date of this chapter may be used for any purpose permitted in the zone district in which it is located, irrespective of its area or width, provided that the owner of which does not own any adjoining property which would create a conforming lot if all or part of said property were combined with subject zone lot and provided that the minimum area for such lot shall not be less than 5,000 square feet and have a minimum lot width of not less than 50 feet and that all other provisions of this chapter are adhered to. No lot or lots in single ownership shall hereafter be reduced so as to create one or more nonconforming lots.