A. If a nonconforming use is discontinued and changed to a conforming use, any future use of the structure or land shall be in conformity to the regulations of the district in which structure or land is located;

B. Any structure or portion of a nonresidential structure, or parcel of land occupied by a nonconforming use which becomes vacant and remains unoccupied for a continuous period of 180 days shall not thereafter be occupied except by a use which conforms to the use regulations of the district in which it is located. Residential uses in commercial or industrial zones which are unoccupied for more than 180 days may be allowed to reoccupy if a special exception is issued pursuant to ACC 18.70.020;

C. If a nonconforming structure sustains damage or destruction which exceeds 50 percent of the current assessed valuation of the structure as established by the county assessor’s office. Reconstruction of such damaged structure or reuse of occupancy shall conform to all regulations of the district in which it is located and it shall be treated as a new building. This subsection shall not apply to single-family dwellings. (Ord. 5170 § 1, 1998; Ord. 4229 § 2, 1987.)