Repair or replacement of non-bearing walls, fixtures, wiring, or plumbing may be performed in or on a nonconforming structure or portion of a structure containing a nonconforming use provided:
(a) During any consecutive twelve-month period, extent of repair or replacement shall not exceed ten percent of the current replacement cost of the nonconforming structure.
(b) Cubic contents of the structure shall not be increased.
(c) If the nonconforming structure or portion of the structure containing a nonconforming use becomes physically unsafe or unlawful by reason of physical condition, such structure shall not be restored, repaired, or rebuilt, except in conformity with the current regulations of the district in which it is located. (Ord. 52. Passed 6-16-97.)