Chapter 17.20
EXTERIOR LIGHTING
Sections:
17.20.030 Exterior Lighting Standards
17.20.040 Lighting Configuration
17.20.010 Purpose
A. This chapter establishes lighting levels, in order to promote visual surveillance, reduce the potential for criminal activity, and meet energy constraints.
B. The goal of CPTED exterior lighting standards is to enable that a driver, pedestrian, or observer looking at the brightest spot in the field of view will also be able to detect an object, or threat, in the darkest areas within the field of view. This detection can only occur if the maximum-to-minimum illuminance is limited to a range that the human eye can see and is related to the uniformity of light on the property. (Ord. 03-1033 § 11)
17.20.030 Exterior Lighting Standards
The installation of exterior lighting shall conform to the following requirements:
A. New exterior lighting installations shall include timers, dimmers, and/or sensors for automatic lights.
B. If existing exterior lighting fixtures are modified, extended, expanded, or added to, the altered portion shall comply with this title.
C. Expansions, additions, or replacements to exterior lighting installations shall be designed to avoid harsh contrasts in color and/or lighting levels.
D. Alternate lighting installations not covered by this chapter may be approved only if the Director of Community and Economic Development determines the following:
1. They are designed to minimize glare;
2. They do not result in excessive lighting levels. (Ord. 11-1002 § 3; Ord. 03-1033 § 11)
17.20.040 Lighting Configuration
The height and configuration of building-mounted and freestanding light fixtures shall conform to the following:
A. Transitional lighting should be incorporated in exterior areas going to and from the building(s) or use(s) within the site. Transitional lighting shall be provided for recreation/office buildings, swimming pools, laundry and mail rooms, covered breezeways, and similar areas.
B. All exterior lighting shall be directed downward and away from adjoining property with luminaries shielded.
C. All exterior fixtures on multi-family housing units that are directed toward common areas shall be illuminated from dusk until dawn.
D. Trees and shrubs shall not interfere with the distribution of lighting required by CPTED. The Director of the Department of Community and Economic Development may waive the landscape requirements of Chapters 15.445 and 17.56 SMC to conform to this requirement. (Ord. 16-1007 § 32; Ord. 11-1002 § 2; Ord. 03-1033 § 11)