(A) On any structure devoted in whole or in part to any non-conforming use or which itself is non-conforming, work may be done in any period of 12 consecutive months on ordinary repairs, or on repair or replacement of non-bearing walls, fixtures, wiring, or plumbing, to an extent not to exceed 10% of the then current replacement value of the structure, provided that the volume of such building or the size of such structure as it existed at the effective date of adoption or amendment of this chapter shall not be increased.
(B) Nothing in this subchapter shall be deemed to prevent the strengthening or restoring to a safe condition of any structure or part thereof declared to be unsafe by any official charged with protecting the public safety, upon order of such official.
(Prior Code, 7 TCC 1-35(i))