A. Shielding. All exterior light fixtures, shall be fully shielded and maintained in a manner that retains the fully shielded characteristics. Building interior lighting that causes outdoor glare shall be screened in a manner that eliminates glare that is visible from a public roadway. Light trespass and glare onto adjoining properties shall be minimized.
B. Adjacent Residential Zone Shielding Requirement. Lighting shall be oriented to direct light away from adjoining residential zone districts. Where standard light shielding is insufficient to protect adjoining residential properties from light trespass, additional house-side shielding may be required, as determined during the site plan review.
C. Height
1. The maximum overall height of lighting fixtures, including the base, shall not exceed the height allowed in the applicable zone district (including reductions in height mandated by proximity to adjoining residential zones, if applicable).
2. Light fixtures in a Multi-Family Residential zone district shall not exceed 30 feet.
3. Wall-mounted lighting fixtures shall not be located above the roofline and shall not exceed the applicable zone district height.
D. Minimum Lighting Requirements
1. Driveway Entrances. See Section 151.08.010.
2. Multi-family residential, commercial, and industrial development shall maintain safely lit parking lots, and walkways to units and other buildings, and shall maintain landscaping to ensure such safety over time.
3. Commercial and industrial development where parking lot islands are required shall ensure during design and construction that required landscaping will not interfere with required light fixtures over time.
E. Total Outdoor Light Output
1. Total outdoor light output shall not exceed the limits in Table 151.11-1 (with the exception of “E” below).
2. Lighting Areas.
a. Area 1 consists of all commercial and industrial zoned properties and multi- family development requiring a commercial site plan review, and is adjacent to any residential zone district or use.
b. Area 2 consists of all other commercial and industrial zoned properties and multi-family development requiring a commercial site plan review.
Table 151.11-1
Lumen Cap Limits Per Developed Acre*
Light Fixtures Using All Low-Pressure Sodium** | Light Fixtures Using Other Light Types | |
Area 1 | 200,000 Lumens | 150,000 Lumens |
Area 2 | 250,000 Lumens | 200,000 Lumens* |
* Developed acre consists of all improved surface area including buildings, structures, storage and service areas, parking, loading, driveway areas, required setback areas and required landscaping related to the use, but not areas that are only cleared.
** Low Pressure Sodium lamps are the preferred lamp type.
F. Service Station Canopy Lighting
1. Light fixtures mounted under canopies shall be recessed or fully shielded.
2. Under-canopy lighting shall be limited to 60 lumens per square foot of canopy area and shall not count toward the lumen cap levels shown in Section 151.11.004.D.
G. Light Emitting Diode (LED) Lighting
1. LED lights used in private development shall conform to the lighting requirements in this Code and shall be filtered to have a Correlated Color Temperature (CCT) maximum of 3,000K.
2. LED lights used on public roadways shall conform to the requirements of Development Code Section 151.08.010 and shall be filtered to have a Correlated Color Temperature (CCT) maximum of 3,000K.
('76 Code, Art. 12-1) (Ord. 743, passed 4-10-86; Am. Ord. 875, passed 1-10-91; Am. Ord. 2008-004, passed 1-24-08; Am. Ord. 2015-003, passed 5-28-15)