17.09.064 Outdoor lighting – Total light output.
A. For commercial developments in the C-1, C-2, C-3, C-4, and RC Zones, the total outdoor light output shall not exceed fifty thousand lumens per developed acre. Such developments shall be permitted a minimum of five thousand lumens regardless of parcel size.
B. For commercial developments in the A-2, C-5, SAR, and I-1 Zones, for mixed-use commercial and residential developments, and residential multihousehold developments in all zones, the total outdoor light output of any such development shall not exceed twenty thousand lumens per net acre. Such developments shall be permitted a minimum of five thousand lumens regardless of parcel size.
C. For residential development of single-household, two-household, and ADUs in all zones, the total outdoor light output shall not exceed ten thousand lumens for parcels one-half acre or larger in size. Parcels smaller than one-half acre shall be permitted five thousand lumens.
1. Residential units used for overnight accommodations or other commercial uses shall comply with the residential standards for total light output.
D. Unshielded lighting shall not be permitted unless exempt, which unless expressly exempt, shall be incorporated into the total outdoor light output calculation.
1. Total outdoor light output exceptions:
a. Street lights used for the express purpose of illumination of public rights-of-way are excluded from total outdoor light output calculations.
E. A property may exceed the total light output limits if one hundred percent of the proposed lighting is comprised of the minimum, qualifying, and required safety lighting, given the fixture lumens are the minimum required to meet safety illumination standards. No additional lighting, or nonqualifying safety lighting, may be proposed beyond the required safety lighting if that required safety lighting meets or exceeds one hundred percent of the total light output calculation. (Ord. 23-14, 2023; Ord. 19-03 Att. 1 (part), 2019)