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Madison, WI Home Business: Signage Rules (2026)

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

Key Facts

Governing section
MGO § 28.151(l)
Sign type allowed
Non-illuminated nameplate only
Max size
2 square feet
Other exterior signs
Prohibited entirely
Penalty
$1–$1,000 forfeiture, § 28.207(1)

Summary

Madison restricts home-business signage to almost nothing: Sec. 28.151(l), MGO says the only exterior sign a home occupation may display is a non-illuminated nameplate no larger than two square feet. Everything else, window displays, illuminated signs, banners, larger placards, is off the table for a home business operating under the home occupation standards.

(l)The only exterior indication of the home occupation shall be a non-illuminated nameplate a maximum of two (2) square feet in area.(m)A home occupation of an individual with a disability, who is incapable of employment outside the home by reason of significant physical or mental disability, as verified by a signed physician statement verifying the disability, is exempt from the requirements of subparagraphs (g) through (k).

Source: MGO 31 Sign CodeView official code

Full Breakdown

The Home Occupation standard in Sec. " That phrasing does more than set a size cap, by naming the nameplate as the ONLY exterior indication permitted, it rules out every other form of exterior advertising for a home occupation, including illuminated signs, window displays, banners, sandwich boards or larger placards, regardless of what a business might display if it operated from a commercial storefront instead. The two-square-foot nameplate is also tied to the broader home occupation requirement in subsection (b) that the business stay "clearly incidental and secondary" to the dwelling's residential use, a prominent or illuminated sign undercuts that showing and puts the whole home occupation's by-right status at risk, not just the sign itself.

The disability exemption in subsection (m) does not reach the sign rule: it only exempts qualifying operators from subsections (g) through (k), so even an exempt home occupation must still comply with the (l) nameplate limit. Enforcement runs through the Zoning Administrator, and any exterior sign that exceeds the two-square-foot cap or uses illumination is a violation of Chapter 28, subject to the general zoning penalty in Sec. 207(1), MGO.

Violations & Fines

Installing anything beyond a single non-illuminated, two-square-foot nameplate, an illuminated sign, a larger sign, a banner or a window display, violates Sec. 28.151(l), MGO. Sec. 28.207(1), MGO makes any Chapter 28 violation punishable by a forfeiture of not less than $1 and not more than $1,000 upon conviction, and the oversized signage can also jeopardize the home occupation's underlying by-right status.

Frequently Asked Questions

Can I put up a sign advertising my home business in Madison?
Only a small one. Sec. 28.151(l), MGO limits a home occupation to a single non-illuminated nameplate no larger than two square feet: illuminated signs, banners, or larger advertising displays are not allowed.
Is the nameplate sign limit waived for the disability exemption?
No. Sec. 28.151(m), MGO exempts qualifying disabled operators only from subsections (g) through (k); the nameplate limit sits in subsection (l), outside that exemption, so it still applies.
What happens if I install an illuminated or oversized sign?
It violates Sec. 28.151(l), MGO and exposes you to the Chapter 28 penalty in Sec. 28.207(1), MGO, a forfeiture of $1 to $1,000 upon conviction, and can also undercut the "incidental and secondary" status the home occupation needs to remain by-right.

Sources & Official References

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