Antioch, CA Sign Regulations: Digital Billboards (2026)
Key Facts
- Location
- Flashing/digital signs allowed only Downtown
- Approval
- Design Review Board must OK design, color, flash rate
- Rotating signs
- Capped at 8 revolutions per minute
- Appeals
- Written appeal to Planning Commission
- Elsewhere
- No approval path outside Downtown District
Summary
Antioch treats digital and changeable-message displays as 'flashing' or 'moving' signs under AMC § 9-5.505, and § 9-5.508(H) confines them to the Downtown District. Anywhere else a scintillating, flashing, or digitally animated sign cannot be permitted at all, and even downtown it needs Design Review Board sign-off on design, color, and flash rate.
(H) Flashing signs. Flashing, scintillating, and similar signs may be erected only in the Downtown District and then only with the approval of the Design Review Board as to design, color, degree of flashing, and the like.
(1) Applications for flashing signs shall be submitted to the Department of Development Services, accompanied by colored drawings to scale adequate to reflect the operating details of the proposed sign.
(2) The Design Review Board shall review the application at its next regularly scheduled meeting and may approve, deny, or conditionally approve the application.
(3) Any person aggrieved by the decision of the Design Review Board may appeal in writing to the Commission, and the appeal shall be heard at the next scheduled Commission meeting.
Full Breakdown
505, captures the technology directly: a FLASHING ILLUMINATION SIGN is any sign illuminated by electricity, luminous tubes, gas flames, or similar sources when the illumination is not maintained constant in intensity, color, or pattern, and a MOVING SIGN is any sign in or on which any visible portion rotates or moves in any way. Both definitions cover LED billboards that cycle images or brightness. 508(H), states that flashing, scintillating, and similar signs may be erected only in the Downtown District and only with Design Review Board approval as to design, color, and degree of flashing.
An applicant must submit colored drawings to scale to the Department of Development Services showing the sign's operating details; the Board reviews the application at its next regular meeting and may approve, deny, or conditionally approve it. Anyone aggrieved by the Board's decision can appeal in writing to the Planning Commission, which hears the matter at its next scheduled meeting. 508(I). Outside the Downtown District, a digital or flashing billboard has no path to approval under this article at all, distinguishing Antioch from cities that permit digital billboards commercially citywide subject only to brightness curfews.
Violations & Fines
Installing a flashing, scintillating, or digitally animated sign without Downtown District Design Review Board approval violates § 9-5.508(H) and is enforceable as any other municipal code violation: a misdemeanor under § 1-2.01 unless the City Attorney reduces the charge to an infraction, with the unpermitted sign itself declared a public nuisance subject to removal at the owner's expense.
Frequently Asked Questions
Can I put an LED digital billboard on my Antioch business?
What counts as a 'flashing' sign under Antioch's code?
How do I appeal if the Design Review Board denies my digital sign?
Sources & Official References
Other rules in Antioch
California rules heatmap·Compare Antioch to another location·View the California sign regulations overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.
Digital Billboards in Nearby Cities
How other cities in Contra Costa County handle digital billboards.