Whatcom County, WA Outdoor Lighting: Light Trespass & Shielding (2026)
Key Facts
- County standard
- Direct light away, WCC 20.80.523
- Residential cap
- None countywide
- Bellingham cap
- About 1 foot-candle
- Remedy
- Code compliance or nuisance suit
Summary
Whatcom County zoning requires outdoor lights be arranged to direct light away from adjoining property and public roads. There is no countywide residential foot-candle cap. Bellingham limits light trespass to about one foot-candle at property lines through design review.
Any parking area which is intended to be used primarily during nondaylight hours shall be properly illuminated to avoid accidents. Any lights used to illuminate a parking lot shall be so arranged as to direct the light away from the adjoining property and the public road.
Full Breakdown
In unincorporated Whatcom County, light-trespass control runs through zoning conditions rather than a single spillover standard. WCC 20.80.523 requires parking-area lighting arranged to direct light away from adjoining property and the public road, and conditional-use approvals like battery-storage facilities repeat the direct-light-away requirement. There is no countywide foot-candle limit at residential property lines, so a homeowner bothered by a neighbor's floodlight relies on code compliance for permitted uses and on common-law private nuisance, where a court can order an unreasonable light shielded or redirected. Bellingham is stricter inside the city, requiring shielded fixtures and capping light trespass at roughly one foot-candle at property lines in design review. Shoreline lighting near Lake Whatcom must minimize reflected light.
Violations & Fines
Whatcom County Planning and Development Services can act on glare tied to a permitted use, typically ordering a fixture reshielded or redirected. Absent a specific standard, a resident's remedy is a private-nuisance suit; Bellingham enforces its own cap.
Frequently Asked Questions
Can I make my neighbor shield a bright light?
Does Whatcom County limit light spillover at all?
Sources & Official References
Other rules in Whatcom County
Compare Whatcom County to another location·View the Washington outdoor lighting overview
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