Placer County, CA Outdoor Lighting: Dark Sky Rules (2026)
Key Facts
- Applies to
- Wineries and farm breweries only
- Standard
- International Dark-Sky Association compliant
- Also required
- Consistency with Rural Design Guidelines
- Enforcement
- Use-permit condition, not property-wide rule
- Max penalty
- $1,000 fine or 6 months jail, § 1.24.010
Summary
Placer County has no blanket dark-sky ordinance for every property. The one enforceable 'dark-sky compliant' standard in the code applies to wineries and farm breweries: their lighting must follow the county's rural design guidelines and meet International Dark-Sky Association standards as a condition of their use permit.
E. Development and Operational Standards. The following development and operational standards shall apply to all wineries and farm breweries, and expansions of existing lawfully operating facilities... 5. Lighting. All lighting for wineries and farm breweries shall be consistent with the rural design guidelines for Placer County and shall be dark-sky compliant as specified by the International Dark-Sky Association.
Full Breakdown
Placer County does not have a general outdoor-lighting or dark-sky ordinance that applies to every property in the unincorporated county. The 'dark-sky compliant' standard is written into specific land-use sections instead. 330(E)(5) requires that all lighting for wineries and farm breweries be consistent with the rural design guidelines for Placer County and be dark-sky compliant as specified by the International Dark-Sky Association. 36. 56 of the zoning ordinance for other specific commercial land uses, showing the county applies dark-sky design as a use-specific condition of approval rather than as a blanket property standard for homes or businesses generally.
A residential property owner installing a porch light or a security floodlight is not directly bound by this language; it is enforced through the use-permit conditions the Community Development Resource Agency attaches when it approves a winery, farm brewery, or similarly conditioned commercial project. In the Tahoe Basin, any lighting standard the county imposes sits alongside separate Tahoe Regional Planning Agency requirements that are not part of this county code chapter.
Violations & Fines
Because the dark-sky lighting standard is a condition of the winery or farm brewery's use permit, noncompliant lighting is treated as a permit violation rather than a standalone infraction. Placer County Code § 1.24.010 sets the fallback code-enforcement penalty for such violations: a misdemeanor with a fine of up to $1,000 and up to six months in county jail, or prosecution as an infraction, plus the county can pursue permit compliance action against a facility operating outside its approved conditions.
Frequently Asked Questions
Does Placer County have a dark-sky ordinance for all homes?
What lighting standard must a Placer County winery follow?
Is Lake Tahoe lighting covered by this county rule?
Sources & Official References
Other rules in Placer County
California rules heatmap·Compare Placer County to another location·View the California outdoor lighting overview
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