Continuance of a Nonconforming Structure. Structures that were legally established and are used for a conforming use, but that are nonconforming with regard to setbacks, buffers or yards, area, bulk, height, or density may be maintained and repaired. A structure which is being or has been used for a nonconforming use may be used for a different nonconforming use only upon the approval of a shoreline CUP, which may be approved only upon finding that:
