(a) Purpose. This section establishes outdoor lighting standards that are intended to balance safety and security needs for lighting with efforts to ensure that light trespass and glare have a negligible impact on surrounding property, and on residential uses in particular.
(b) Exemptions. The following are exempt from the lighting provisions:
(1) Outdoor lights associated with a temporary event for which a temporary use permit was granted.
(2) Outdoor lights used at public parks and school sites. Outdoor lights for recreational activities and special events shall be turned off between 11:00 p.m. and 6:00 a.m.
(3) Temporary lights used for holiday decorations.
(4) Emergency lighting erected for official purposes by a local, state, or federal agency.
(c) Outdoor Lighting Standards for Single-family Residential Property. Outdoor lighting is permitted in single-family residential developments as a means of deterring crime and increasing safety of residents. However, to ensure that the intensity and direction of light does not constitute a nuisance to adjacent residential dwellings, outdoor lighting shall either be motion detected, off between the hours of 11:00 p.m. and 6:00 a.m., or directed and shielded in a manner that does not constitute a nuisance to abutting residential property.
(d) Outdoor Lighting Standards for Other than Residential Property. Parking lots, driveways, pedestrian walkways, and building entrances/exits shall be illuminated for security and safety purposes during business hours of operation. Except as otherwise exempt, outdoor lighting shall be provided with shielding so that the light emitted from an outdoor light fixture is projected below an imaginary horizontal plane passing through the fixture. Where the light source from an outdoor light fixture is visible beyond the property line, shielding shall be required to reduce glare so that the light source is not visible from within any residential dwelling unit (Figure 21.70.070 D).
(e) Prohibited Lighting. The following outdoor light fixtures shall be prohibited. Existing light fixtures legally permitted or authorized prior to the effective date of this zoning ordinance may be maintained.
(1) Uplighted and back-lighted canopies or awnings.
(2) Searchlights, except as authorized for a special or temporary event authorized by a temporary use permit.
(3) Flashing lights, except as used in conjunction with a security alarm system.
(4) Roof-mounted lights.
(5) Any light that imitates or causes visual interference with a traffic signal or other necessary safety or emergency light.
(Ord. 612 Exhibit A (part), 2008).