A nonconforming structure may remain and be used; provided, that:
A. Changes to the structure that would alter or increase the nonconformity are not permitted.
1. Any vertical or horizontal extension of a nonconforming wall must meet the applicable standards.
2. Adding to the footprint of a nonconforming structure is permitted as long as the addition meets the requirements of BIMC Title 18;
B. If moved, the structure shall be made to conform to regulations of this code;
C. If a building is harmed or destroyed by more than 50 percent of its square footage, the building must be reconstructed in compliance with the requirements for the zone in which it is located (this provision shall not apply to any dwelling unit constructed as an affordable housing unit under Chapter 18.21 BIMC); and
D. Any structure other than a building that is damaged or removed to an extent that exceeds 50 percent of its square footage may be replaced or reconstructed in substantially the same location and of substantially the same design as the pre-damaged or pre-removed structure, if a complete application is submitted for any and all required construction permits within 180 days of the damage or removal. (Ord. 2011-02 § 2 (Exh. A), 2011)