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 of area, lot coverage, height, yards, its location on the lot or other requirements concerning the structure, such structure may be continued so long as it remains otherwise lawful, subject to the following provisions:
A. No such nonconforming structure may be enlarged or altered in any way which increases its nonconformity, but any structure or portion thereof may be altered to decrease its nonconformity.
B. Should such nonconforming structure or nonconforming portion of structure be destroyed by any means to an extent of more than 75% of its replacement cost at the time of destruction, it shall not be reconstructed except to the exact or more conforming dimensions as it existed on the date of its destruction, which reconstruction shall be commenced and completed with due diligence; provided, however, that if and when the principal place of residence of a citizen of the Town of Brutus is destroyed by accidental fire, hurricane, tornado or other act of God, said homeowner may rebuild said residence to the original type and size of the structure, or said homeowner or mobile home owner may rebuild or replace with a superior type of construction. This applies only to property occupied by the homeowner at the time of the disaster.
C. Should such structure be moved for any reason to any district whatever, it shall thereafter conform to the regulations for the district in which it is located after it is moved.