Hercules, CA Home Business: Signage Rules (2026)
Key Facts
- Sign count allowed
- 1 sign only
- Max size
- 1 square foot per face
- Illumination
- Prohibited: nonilluminated only
- Placement
- Attached to residence, nonmoving
- Lettered vehicles
- Cannot park visible from lot line
Summary
A Hercules home occupation may display exactly 1 nonmoving, nonilluminated sign attached to the residence, capped at 1 square foot per face, and cannot use any outside display, window sign or lettered vehicle to advertise, per Section 13-35.270(7).
No outside display or window shall display material or products; no outside sign or window sign shall advertise or otherwise identify the home occupation except for 1 nonmoving and nonilluminated sign attached to the residence with a display surface of not more than 1 square foot on any face. No commercial or passenger vehicle carrying any sign advertising or identifying the home occupation shall be regularly parked on any portion of the lot where such sign is visible or at or near any lot line of the lot containing the home occupation.
Official source re-checked September 8, 2026: no newer edition of the code had been published (publisher’s edition: current through Ordinance 555, passed March 25, 2025).
Full Breakdown
' That means no window signage, no yard sign, no illuminated or animated sign, and only a single small placard physically attached to the house itself, capped at 1 square foot on any face, roughly the size of a sheet of paper. ' In practice this bars parking a work van with door magnets or a lettered wrap anywhere on the property, or even near the lot line, if the home occupation's signage would be visible from outside. 270 folds signage into the same administrative-use-permit standards that govern floor area and traffic, exceeding the 1-square-foot limit or adding illumination is treated as a permit violation rather than a separate sign-code infraction, giving the Community Development Director authority to require removal or revoke the permit.
Violations & Fines
Displaying more than 1 sign, exceeding the 1-square-foot display-surface limit, illuminating or animating a home-occupation sign, or regularly parking a lettered commercial or passenger vehicle visible from the lot line violates Section 13-35.270(7); the Community Development Director can order the sign removed or the vehicle relocated and may revoke the underlying administrative use permit for continued noncompliance.
Frequently Asked Questions
How big can my home business sign be in Hercules?
Can I put a sign in my window for my home business?
Can I park a work van with my company logo at my Hercules home?
Sources & Official References
Other rules in Hercules
California rules heatmap·Compare Hercules to another location·View the California home business overview
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How other cities in Contra Costa County handle signage rules.