On any building devoted in whole or in part to any nonconforming
use, work may be done in any period of twelve (12) consecutive months
on ordinary repairs or on repair or replacement of nonbearing wall,
fixtures, wiring or plumbing, to an extent not exceeding ten (10)
percent of the current replacement value of the building; provided,
that the cubic content of the building as it existed at the time of
passage of amendment of this chapter shall not be increased, churches
and schools excepted.
Nothing in this chapter shall be deemed to prevent the strengthening
or restoring to a safe condition of any building or part thereof declared
to be unsafe by any official charged with protecting the public safety,
upon order of such official.
(Prior code § 30-24)