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Glenn County, CA Home Business: Signage Rules (2026)

Light Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Signs allowed
One on-site sign only
Maximum size
2 square feet total
Lighted signs
Not allowed
Governing section
Glenn County Code § 15.78.020
Applies to
Home occupation permit holders

Summary

A home business permitted under Glenn County's home occupation rules gets exactly one sign. Glenn County Code Section 15.78.020 caps that sign at two square feet of total aggregate area and bars any lighted sign outright, keeping the advertising as unobtrusive as the business itself is supposed to be inside a residential or agricultural zone.

These county ordinances apply to unincorporated areas of Glenn County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

One on-site sign is permitted advertising the home occupation, not to exceed two (2) square feet in total aggregate area. No lighted signs are allowed;

View official code

Full Breakdown

020. The rule is short and absolute: "One on-site sign is permitted advertising the home occupation, not to exceed two (2) square feet in total aggregate area. " That two-square-foot limit is a hard ceiling on the sign's total area, not a per-face allowance, and it applies whether the home occupation sits in one of the residential zones (RZ, RE, RE-NW, R1, RM) or one of the agricultural zones (FA, AP, AE, AT) where home occupations are permitted. The same chapter requires that the home occupation itself stay screened from public view and that the structure housing it not be "reasonably recognized as serving a nonresidential use," so the two-square-foot sign cap works alongside those visibility rules rather than as a standalone sign ordinance. 020's inspection clause.

Violations & Fines

Putting up a larger or lighted sign than Section 15.78.020 allows is a violation of the home occupation permit's conditions, enforced the same way as any other code violation under Glenn County Code Section 1.12.010: an infraction for a first offense, a misdemeanor after a third violation of the same standard within 12 months, and a separate offense for each day the noncompliant sign stays up.

Frequently Asked Questions

How big a sign can I put up for a home business in Glenn County?
Two square feet, total. Glenn County Code Section 15.78.020 allows "one on-site sign... not to exceed two (2) square feet in total aggregate area," and that is the entire allowance regardless of how many sides or faces the sign has.
Can I light up my home business sign at night?
No. Section 15.78.020 states plainly that "no lighted signs are allowed" for a home occupation, whether the light source is internal, spotlit, or otherwise illuminated after dark. The rule applies regardless of the zone the home occupation sits in, agricultural or residential.
What happens if my sign is bigger than allowed?
It puts your home occupation permit at risk, not just the sign. The planning authority can revisit compliance any time it inspects the premises under Section 15.78.020, and an oversized or lighted sign is enforced as a code violation like any other permit condition.

Sources & Official References

Other rules in Glenn County

Noise Ordinances: Construction HoursLight RestrictionsCustomer Traffic RestrictionsSome RestrictionsZoning & Home Occupation PermitsSome RestrictionsNoise Ordinances: Leaf Blower RulesLight RestrictionsNoise Ordinances: Barking DogsSome RestrictionsParking Rules: EV ChargingLight RestrictionsParking Rules: Driveway RulesSome RestrictionsFence Regulations: Material RestrictionsLight Restrictions

All Glenn County rules

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