Any building or structure, existing and in use, or land devoted to a nonconforming use on the effective date of this chapter may not be altered or enlarged in a manner and form resulting in the extension of such nonconforming use; provided, however, that the Village Board of Zoning and Building Appeals shall have the power to grant a variance under the provisions of §§ 153.425 through 153.434 hereof, allowing such extension under conditions as follows.
(A) The total alteration, enlargement or extension of existing structure or structures or the erection of additional structures shall not increase the nonconforming area of such original structures by a total of more than 25%.
(B) Such enlargement and/or extension shall not be detrimental in consideration of the surrounding neighborhood, but that the granting thereof shall remove an unnecessary hardship as to the owner thereof.
(C) The extension of such nonconforming use shall not reduce the area of a contiguous or adjacent conforming use.
(Ord. 16-79, passed 10- -1979)