Nonconforming signs. All signs erected or constructed after the effective date of this chapter shall conform to the requirements set forth herein and any amendments hereof. Any sign or billboard erected or constructed after the effective date of this chapter that does not conform to the requirements of this chapter shall be deemed an unlawful structure.
A sign in existence on the effective date of this chapter which was constructed in conformity with the ordinances and other applicable laws in effect on the date of its construction, but which, by reason of its size, height, location, design, or construction, is not in conformance with the requirements of this chapter, shall be a lawful nonconforming sign, and shall conform to the following regulations.
(1)
No increase in nonconformity. A lawful nonconforming sign may be continued and shall be permitted to remain in place, provided that no action is taken which increases the degree or extent of the nonconformity. Any sign that has been destroyed by fire, storm, or other unintentional act, or any sign that has been intentionally demolished, shall be either replaced by a conforming sign, or replaced in such a manner that does not increase its degree or extent of the nonconformity.
(2)
Repairs and maintenance. Normal maintenance shall be permitted; normal maintenance shall include painting of chipped or faded signs; replacement of faded or damaged surface panels; or repair or replacement of electrical wiring or electrical devices.
(3)
Nonconforming changeable copy signs. The message on a nonconforming changeable copy sign or nonconforming bulletin board sign may be changed provided that the change does not create any greater nonconformity.
(4)
Substitution. No nonconforming sign shall be replaced with another nonconforming sign.
(5)
Modifications to the principal building. Whenever the principal building on a site on which a nonconforming sign is located is modified to the extent that site plan review and approval is required, all nonconforming signs shall be removed, unless otherwise permitted to remain by approval of the Planning Commission during site plan review.