Sonoma, CA Sign Regulations: Holiday Displays (2026)
Key Facts
- Holiday banner limit
- 45 total days per year
- Grand opening/event limit
- 15 consecutive days
- Permanent banner
- Requires DRHPC approval
- Advertising copy
- Never allowed on a banner
- Governing chapter
- SMC Chapter 18.20
Summary
The City of Sonoma's sign code does not single out holiday lights, but it does regulate decorative holiday banners and flags: businesses may fly them for up to 45 total days a year for holidays, or for 15 consecutive days for a grand opening or special event, without advertising copy.
Decorative banners and flags may be used for grand opening or special events for a maximum period of 15 consecutive days, or for holidays for a period of no more than 45 total days per year and may be permanently displayed if first approved by the DRHPC. In no event shall advertising copy be displayed on any banner.
Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through Ordinance 13-2025, passed December 3, 2025).
Full Breakdown
20 (Specific Regulations), governs decorative banners and flags rather than string lights or inflatables. It sets two separate duration tracks: a grand-opening or special-event banner may be displayed for a maximum of 15 consecutive days, while a banner put up for a holiday may be displayed for no more than 45 total days per year. A banner can be made permanent instead of temporary, but only if the design review and historic preservation commission (DRHPC) approves it first. The section also draws a hard content line that applies to every banner regardless of occasion: advertising copy may never be displayed on a banner, so a holiday banner that also promotes a sale or a product would fall outside this exemption entirely. 001. 130, which bar flashing, blinking, moving, or scintillating illumination on any sign or exterior business lighting citywide.
Violations & Fines
A banner left up past its 45-day holiday allotment, displayed longer than 15 consecutive days for an event, or made permanent without DRHPC sign-off is a violation of Title 18 subject to abatement under SMC 18.44.010 and the general penalty in Chapter 1.12 SMC: a first infraction draws up to a $100.00 fine, a second up to $200.00, and a third within a year up to $500.00, with a misdemeanor charge and up to six months in jail possible at the city attorney's discretion.
Frequently Asked Questions
How long can a business display a holiday banner in the City of Sonoma?
Does Sonoma's code have a rule specifically for holiday lights?
Can a holiday banner advertise a sale?
Can I keep a decorative holiday banner up permanently?
Sources & Official References
Other rules in Sonoma
California rules heatmap·Compare Sonoma to another location·View the California sign regulations overview
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