A. A nonconforming use may be extended through the same building, provided no structural alteration of the building is proposed or made for the purpose of the extension. Installation of solar energy devices to a building is not a structural alteration.

B. A non-complying building or structure or nonconforming use of land may be continued to the same extent and character as that which legally existed on the effective day of the applicable regulations.

C. A nonconforming structure may not expand. A nonconforming structure may be allowed to reconstruct a portion of the building subject to the conditions established in Section 17.12.040 of this code.

D. Allowed dwellings that are nonconforming as to the required minimum building square footage at the time of the adoption of the ordinance codified in this chapter, shall be allowed to construct additions, expansions, and remodels without having to come into full compliance with the minimum square footage requirement. In any case, such addition, expansion or remodel shall in all other ways fully comply with the requirements of the zoning district. (Ord. 10-15, 2010)