Waukesha, WI Outdoor Lighting: Light Trespass & Shielding (2026)
Key Facts
- Property-line cap
- 0.5 footcandles maximum
- Minimum parking-area lighting
- 0.4 footcandles after sunset
- Buffer yard fixtures
- Prohibited within required buffer yards
- Residential exemption
- Ag and single-family districts exempt from minimum
- Enforcement route
- Site plan review plus nuisance clause
Summary
Waukesha caps exterior lighting for parking, recreation, display and security uses at 0.5 footcandles measured at the property line, requires shielded fixtures, and bars any light fixture from a required buffer yard between commercial and residential land.
LIGHTING. No exterior lighting used for parking lots, recreational facilities, product display, or security shall interfere with the operation motor vehicles and uses of land in the vicinity of the light source. These requirements shall not apply to lighting placed in a public right-of-way for public safety. Type. Shielded luminaries, or luminaries with cutoff optics, and careful fixture placement may be required so as to insure compliance with this section. Minimum Lighting Standards. All areas designated on approved site plans for vehicular parking, loading, or circulation and used for any such purpose after sunset shall provide artificial illumination in such areas at a minimum intensity of 0.4 footcandles, exclusive of approved anti-vandal lighting. This standard shall not apply to properties in agricultural and single-family residential districts. Intensity of Illumination. The intensity of illumination, measured at the property line, shall not exceed 0.5 footcandles. Location. Light fixtures shall not be permitted within required buffer yards. Nuisances. Lighting which creates or becomes a public nuisance is not permitted.
Full Breakdown
59's LIGHTING standard applies to exterior lighting used for parking lots, recreational facilities, product display or security, prohibiting any installation that interferes with the operation of motor vehicles or the use of land nearby; public right-of-way safety lighting is exempted. To meet that standard the City may require shielded luminaries or fixtures with cutoff optics and careful placement. 4 footcandles under the section's Minimum Lighting Standards, though that floor does not apply to agricultural and single-family residential properties. 5 footcandles, and light fixtures are barred outright from any area designated as a required buffer yard.
14's buffer yard rules reinforce that limit for developments abutting residential land: where a buffer yard adjoins a parking lot, the yard must be opaque enough to block headlight glare, and overhead lighting in or near the buffer yard cannot throw rays onto adjacent residential properties. 59's own nuisance clause, giving the City a second enforcement route beyond the numeric footcandle limits. 15, where the Plan Commission checks that proposed lighting is installed in accordance with all applicable ordinances before approving new commercial or multi-family development.
Violations & Fines
Exceeding the 0.5 footcandle property-line cap, placing unshielded fixtures that let overhead lighting throw rays onto adjacent residential property, or creating a lighting nuisance violates § 22.59 and § 22.14 and is enforceable under § 22.67: a penalty under § 25.04 applies, with each day the violation continues treated as a separate offense, and the City, City Attorney, Building Inspector or an affected neighboring owner may seek injunctive relief.
Frequently Asked Questions
How bright can exterior lighting be at my Waukesha property line?
Can lighting shine onto my neighbor's residential yard from a parking lot buffer?
Are light fixtures allowed inside a required buffer yard in Waukesha?
Sources & Official References
Other rules in Waukesha
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