The voluntary demolition, razing, or removal of a nonconforming
structure or building, or portion thereof, shall be considered an
abandonment of the nonconforming structure or building or the nonconforming
portion of such building or structure. In such an instance, a nonconforming
structure or building shall not be permitted to be replaced, reconstructed,
or rebuilt with another nonconforming structure or building or otherwise
maintain any preexisting nonconformity.