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Dane County, WI Home Business: Signage Rules (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified April 2026

Key Facts

Residential (TR) Zones
Small, non-illuminated signs typical limit
Agricultural Zones
More permissive
Code
Dane County Chapter 10
Topic
Signage

Summary

Signage for home businesses in unincorporated Dane County is regulated through Chapter 10 zoning. Residential districts typically allow small, non-illuminated signs only.

City-specific rules exist: Fitchburg, Madison, and Sun Prairie have their own signage rules rules that differ from Dane County's county-level regulations. If you live in one of those cities, check the city-specific page instead.

(72) Home occupation. A home occupation is any activity carried on by a member of the family residing on the premises, which meets all of the following conditions: ... (i) There is no evidence, other than the sign referred to in subsection (j) below, that will indicate from the exterior that the building is being utilized in part for any purpose other than that of a dwelling; and (j) One (1) sign shall be permitted, which sign shall be attached to the building, shall not exceed two (2) square feet in area and shall not be lighted at night.

Source: Dane County Chapter 10 – Zoning OrdinanceView official code

Full Breakdown

Dane County Chapter 10 regulates signs including those for home occupations in residential zoning districts. In residential-transitional (TR) districts, home occupation signs are typically limited to small, non-illuminated signs identifying the business. Agricultural zoning districts have more permissive sign rules. Highway-visible signs may require additional review from the county or Wisconsin DOT for signs near state highways.

Violations & Fines

Oversized or illuminated signs for home businesses in residential zoning districts are violations subject to Dane County zoning enforcement.

Frequently Asked Questions

Can I put a sign in my yard for my home business in rural Dane County?
Small, non-illuminated signs are generally permitted for home businesses in residential zones. For your specific zoning district, contact Dane County Planning at 608-266-4266.
Are illuminated home-business signs allowed in Dane County TR zones?
No, residential-transitional (TR) districts typically prohibit illuminated signs for home occupations. Agricultural zones are more permissive about lighting.
Does Wisconsin DOT review home-business signs near state highways in Dane County?
Yes. Signs visible from or within the right-of-way of a state highway may require review from Wisconsin DOT in addition to any Dane County zoning approval.

Sources & Official References

Other rules in Dane County

Animal Ordinances: Dog Leash LawsSome RestrictionsHome DaycareSome RestrictionsZoning & Home Occupation PermitsSome RestrictionsCustomer Traffic RestrictionsFew RestrictionsNoise Ordinances: Barking DogsSome RestrictionsNoise Ordinances: Decibel LimitsSignificant RestrictionsNoise Ordinances: Amplified Music & Outdoor SoundSome RestrictionsParking Rules: Abandoned VehiclesSome RestrictionsAnimal Ordinances: MicrochippingSignificant Restrictions

All Dane County rules

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Signage Rules in Cities Across Dane County

Madison, WIFitchburg, WIMiddleton, WISun Prairie, WI