(A) Applicability. The standards of this section apply to all new development and to exterior alterations and additions that involve replacement light fixtures or systems, except as provided below.
(1) Exemptions. The following lighting is exempt from the provisions of this section.
(a) Public street lighting.
(b) Athletic field lights. Athletic field lights used within a public school campus or public park.
(c) Safety and security lighting. Safety and security lighting for public facilities.
(d) Construction and emergency lighting. All construction or emergency lighting fixtures, provided they are temporary and are discontinued immediately upon completion of the construction work or abatement of the emergency.
(B) Prohibitions. The following types of exterior lighting are prohibited.
(1) Searchlights. The operation of searchlights for advertising purposes.
(2) Mercury vapor. Mercury vapor lights.
(3) Other light types. Laser lights or any other lighting that flashes, blinks, alternates, or moves.
(C) Minimum illumination.
(1) Parking and access areas. Parking and access areas shall be maintained in compliance with § 23.20.090(K).
(2) Multi-unit residential buildings. Aisles, passageways, and recesses related to and within the
building complex shall be illuminated with an intensity of at least 0.25 foot-candles at the ground level during the hours of darkness.
(3) Non-residential buildings. All exterior doors shall be illuminated with an intensity of at least 0.5 foot-candles at the ground level during the hours of darkness.
(D) Maximum height. Light standards shall not exceed 20 feet in height and shall be appropriate in scale, intensity, and height to the use they are serving.
(1) Exceptions. The Planning Commission may allow additional height for activities, uses, or development with unique lighting needs; for accentuating historic architectural features of a building, accentuating signage and/or landscape features; or for security purposes.
(E) General requirements.
(1) Fixture types. All luminaries shall meet the most recently adopted criteria of the Illuminating Engineering Society of North America (IESNA) for "cut off" or "full cut off" luminaries.
(2) Design of fixtures. Fixtures shall be appropriate to the style and scale of the architecture. Fixtures on buildings shall be attached only to walls or eaves, and the top of the fixture shall not exceed the height of the parapet or roof or eave of roof.
(3) Timing controls. All outdoor lighting in non-residential development shall be on a time clock or photo-sensor system and turned off during daylight hours and during hours when the building are not in use and the lighting is not required for security.
(4) Trespass. All lights shall be directed, oriented, and shielded to prevent light trespass or glare onto adjacent properties. The light level at property lines shall not exceed 0.3 foot-candles.
(Ord. 4823, passed 1-22-24)