Where a lawful structure exists at the effective date of adoption or amendment of this chapter that could not be built under the terms of this, chapter by reason of restrictions on area, lot coverage, height, yards or other characteristics of the structure or its location on the lot, such structure may be continued so long as it remains otherwise lawful, subject to the following provisions:
(A) No such structure may be enlarged or altered in a way which increases its nonconformity;
(B) But any structure or portion thereof may be altered to decrease its nonconformity;
(C) Should such a structure be destroyed by any means to an extent of more than fifty percent (50%) of its replacement cost at time of destruction, it shall not be reconstructed except in conformity with the provisions of this chapter;
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(D) Should such a structure be moved for any reason for any distance whatever, it shall thereafter conform to the regulations of the district in which it is located after it is moved.
('74 Code, § 25-105) (Ord. 89-08, passed 4-27-89)