Any nonconforming use of land, buildings, or structures lawfully existing at the effective date of the ordinance codified in this title may be continued, subject to the provisions of this chapter. (Ord. 516 § 3 (part), 1970; Ord. 491 § 11.01, 1966).

Any building or structure conforming as to use but nonconforming as to height, lot area, lot coverage, or yards at the effective date of the ordinance codified in this title may be altered, repaired, or extended; provided that such alteration, repair, or extension shall not increase the existing degree of nonconformance. (Ord. 516 § 3 (part), 1970; Ord. 491 § 11.02, 1966).

A. Any building or part thereof containing a nonconforming use may be maintained with ordinary repair; provided that no such building or part shall be extended, expanded, or structurally altered except as otherwise required by law.
B. A nonconforming use of a part of a building shall not be extended throughout the building.
C. Any land or building or part thereof formerly used by a nonconforming use and which had been unoccupied or unused continuously for a period of at least one year shall not be reoccupied except by a conforming use.
D. No nonconforming use of land shall be extended, enlarged, or expanded.
E. Any change of a nonconforming use shall be to a conforming one. (Ord. 516 § 3 (part), 1970; Ord. 491 § 11.03, 1966).