(a)
Purpose and Intent. It is the purpose of this section to establish regulations and standards which will reduce light pollution generated by, including, but not limited to, residential, commercial, and industrial lighting fixtures and devices, minimizes light pollution which has a detrimental effect on the environment and they enjoyment of the night sky, reduce and minimize lighting and lighting practices which cause unnecessary illumination on adjacent properties, correct problems of glare and light trespass, reduce energy use, and comply with the regulations set forth in the California Building Efficiency Standards Code or successor statute.
(b) Abandoned or vacant property Community Development Director Day Disabling glare Foot-candle Glare Light trespass Lumen Luminaire Nuisance glare Watt
Definitions. The terms and definitions used in this Section, are incorporated herein, and shall have the meanings set forth in this section, except as provided as follows:
includes their designee.
means calendar day.
means glare that: (1) impairs the visibility and creates a potential hazardous situation for either pedestrians or motorists; or (2) precludes or interferes with the operation of nearby business or the provision of activities, programs or services, or enjoyment of the use on nearby property.
means a unit of light measurement equal to one lumen per square foot.
means the brightness of a light source that causes annoyance, discomfort, or loss in visual performance or visibility to the eye.
means light emitted by a lighting installation, bulb, or other light device which shines beyond the boundaries of the property on which the light is installed.
means a unit of measurement of light. One lumen equals one foot-candle falling onto one square foot of area.
means a lighting fixture complete with the light source or lamp, the reflector directing the light, an aperture (with or without a lens), the outer shell or housing for a lamp alignment and protection, an electrical ballast, if required, and connection to a power source.
means a glare that: (1) creates an annoyance, discomfort, or hazard; or (2) creates an annoyance, discomfort, or impairs or impedes on a person's right to peacefully enjoy their property.
means a standard unit of power (energy per unit time), the equivalent of one joule per second.
(c)
Exempt Lighting. The following outdoor lighting and lighting fixtures are exempt from this chapter:
(1)
Fossil fuel (e.g. gas or kerosene) lamps;
(2)
Temporary holiday or seasonal lights or decorations, for the time period commencing 30 days prior to the holiday, and extending not later than 30 days after the holiday;
(3)
Flag lighting of 150 watts or less and which does not cause a nuisance glare as defined herein;
(4)
Exposed string or solar outdoor lighting, provided: (i) they consist exclusively of white light with a clear bulb; (ii) the installation of such lights shall be limited to the lighting of living landscape features (shrubs and trees); and (iii) all such lighting is installed in accordance with applicable safety regulations, including this chapter;
(5)
Interior lighting, provided that overly bright interior light emitted outdoors from any structure will be subject to control by this chapter if it is determined by the community development director that the indoor lighting creates light trespass, nuisance glare, or disabling glare.
(d)
Prohibited Lighting. The following lighting systems are prohibited except as otherwise indicated:
(1)
Aerial lasers, "search light" style lights, and flashing lights, unless they are allowed pursuant to another section of this Code.
(2)
Lighting fixtures mounted in such a way as to illuminate a roof, or aimed towards a neighboring property line or which causes disabling glare or light trespass, as determined by the Community Development Director.
(e)
Lighting Plan Required. Except for lighting on an existing single-family residence, the submittal of a lighting plan is required as part of a development application or land use permit or clearance.
(f)
Performance Standards Applicable to all Zones. The following performance standards are applicable in all zones:
(1)
All lights shall be directed, oriented, and shielded to prevent light trespass or glare onto adjacent properties, onto public right-of-way, other public areas, and/or driveway areas.
(2)
Lighting shall not be directed toward or seen from any highway, freeway, or public street, alleyway, or other public path in such a manner that would result in disabling glare for drivers.
(3)
Motion detector lighting fixtures are allowed provided that: (i) there is no light trespass or spillover onto adjacent properties; (ii) fixtures are mounted within five feet of an entrance or exit door, garage door, or alcove of a structure; (iii) installed no more than eight feet above the ground; and (iv) illuminated with a maximum of two light bulbs of no more than 75 watts each.
(4)
Exterior lighting shall be turned off during daylight hours—hours between sunrise (dawn) and sunset.
(g)
Lighting in Residential Zones. General requirements in all residential zones:
(1)
All outdoor lighting shall be installed and operated in conformance with this chapter, all other applicable provisions of this Code, California Code of Regulations Title 24, Part 6, and the Uniform Building and Electrical Codes. In the event of any conflicts between this chapter and any other provision of this Code, the more stringent regulation shall apply.
(2)
In multifamily residential dwellings or buildings, lighting for safety and/or security purposes shall be provided at entryways, along walkways, between buildings, and within parking areas.
(Ord. 26-981, 3/9/2026)