§ 1.12. Repairs and maintenance.

On any nonconforming structure or portion of a structure containing a nonconforming use, no work may be done in any period of 12 consecutive months on ordinary repairs, or on repair or replacement of nonloadbearing walls, fixture, wiring, or plumbing to an extent exceeding ten percent of the current replacement cost of the nonconforming structure or nonconforming portion of the structure, as the case may be.

If 50 percent or more of a nonconforming structure containing a nonconforming use becomes physically unsafe or unlawful due to lack of repairs or maintenance, and is declared by a duly authorized official to be unsafe or unlawful by reason of physical condition, it shall not thereafter be restored, repaired or rebuilt except in conformity with the regulations of the district in which it is located.