A. Normal maintenance of a noncon-forming use is permitted provided there are not major structural alterations.
B. Alterations to nonconforming use may be approved when the following conditions are satisfied:
1. The alteration of the structure or physical improvements are reasonably necessary in order to continue the existing use; and
2. The alteration in the structure or physical improvements will have no greater adverse impact on the neighborhood than the existing structure and physical improvements.
C. If a nonconforming use or structure is damaged or destroyed by fire, other casualty or natural disaster, to an extent exceeding eighty (80) percent of its fair market value as indicated by the records of the county assessor and is not returned to use within twelve (12) consecutive months, from the date of destruction, a future structure or use on the site shall conform to this title.
D. The alteration, expansion, replacement or restoration of a nonconforming use may be authorized by the planning commission using the procedure for conditional uses as set forth in Chapter 16.88. (Prior code § 10.550)