Winnebago County, IL Home Business: Signage Rules (2026)
Key Facts
- Signs allowed
- One nameplate sign only (§18.3.8(I))
- Maximum size
- 2 square feet
- Illumination
- Non-internally illuminated only
- Sign permit
- Exempt if it meets the cap (§22.8.14)
- First zoning fine
- $75 (§4-4(j)(6))
Summary
A home occupation in unincorporated Winnebago County may display exactly one nameplate sign, mounted on the wall or a window, capped at 2 square feet and never internally illuminated, under UDO § 18.3.8(I). The same 2-square-foot cap for nameplate/occupational signs is repeated in the county's separate sign code at § 22.8.14, which expressly cross-references back to § 18.3.8 for home occupations.
I.No exterior alteration that changes the residential character of the principal building shall be permitted. However, one non-internally illuminated wall or window (1) nameplate sign not exceeding two (2) square feet is permitted.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 64).
Full Breakdown
Section 18.3.8(I) provides that "no exterior alteration that changes the residential character of the principal building shall be permitted," but then carves out one exception: "one non-internally illuminated wall or window (1) nameplate sign not exceeding two (2) square feet is permitted." That is the only exterior identification a home occupation is allowed to add to the dwelling. The county's Article 22 sign standards independently exempt this same category from a separate sign permit at § 22.8.14: "Nameplate/occupational signs not exceeding two (2) square feet in area denoting only the name, address and profession of an occupant shall be exempt from sign permit requirements," adding that "Nameplate/occupational signs are further regulated in section 18.3.8." Together the two sections mean a home business owner gets one small, unlit identification sign without needing to apply for a sign permit at all, but cannot exceed the 2-square-foot cap or add illumination without violating both the home-occupation standards and the sign code.
Violations & Fines
Installing an illuminated sign, a second nameplate sign, or one larger than 2 square feet for a home occupation violates § 18.3.8(I) and forfeits the § 22.8.14 exemption from sign-permit requirements, exposing the owner to a Chapter 90 zoning violation under § 4-4(j)(6): $75 for a first offense, $150 for a second, $350 for a third, and a required personal hearing appearance for a fourth or later offense.
Frequently Asked Questions
How big can my home business sign be in Winnebago County?
Can my home business sign be lit up at night?
Do I need a separate sign permit for my home business nameplate?
What if I want a bigger sign than 2 square feet for my home business?
Sources & Official References
Other rules in Winnebago County
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