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Cass County, MO Home Business: Signage Rules (2026)

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

Key Facts

No-impact exemption
Business must not be visible from the street, § 400.260(B)(2)(f)
Sign content limit
Signage may only advertise the permitted home occupation
Governing section
§ 400.790(A) footnote (4), District Regulations Table
No permit needed
For qualifying no-impact home-based businesses, § 400.260(B)
Enforcement
Zoning Officer, § 400.030(22), up to $1,000/day

Summary

A home occupation in unincorporated Cass County can only advertise itself with signage tied to that specific permitted use, and the underlying no-impact home-based business exemption in Section 400.260(B) requires the business not be visible from the street at all. Together, Sections 400.260(B)(2)(f) and 400.790(A) footnote 4 keep home-business signage minimal and out of public view.

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

Are not visible from the street; and ... Signage may only pertain to a permitted home occupation on this parcel

View official code

Full Breakdown

Cass County regulates home-business signage through two connected sections rather than a single stand-alone sign category. ' A home business that wants a physical sign therefore has to operate as a permitted home occupation rather than as a no-impact exemption, since a visible sign would put it outside the no-impact category's street-visibility condition. ' That restricts the content and use of any allowed sign at a home occupation to advertising the occupation actually permitted there, so a homeowner cannot use a home-occupation sign allowance to advertise an unrelated business, a separate rental unit, or a use that has not itself been approved.

260(C) reinforces the light-touch approach for home-based work generally: the county may not restrict the hours of operation for home-based work or require structural modifications, but that protection covers the business activity itself, not an exterior sign, which remains governed by the Article XII table and its footnote.

Violations & Fines

A home-business sign that goes beyond what a permitted home occupation allows, or that advertises a use the County has not approved for that parcel, is a Zoning Order violation under Section 400.030(22): the Zoning Officer gives written notice, the owner has 10 days to correct the signage, and an uncorrected violation can bring a misdemeanor conviction with fines up to $1,000 per day.

Frequently Asked Questions

Can I put up a sign for my home business in unincorporated Cass County?
Only if it advertises a use the County has approved as a permitted home occupation on that parcel. The District Regulations Table's footnote to Section 400.790(A) states 'Signage may only pertain to a permitted home occupation on this parcel,' so the sign's content is limited to that specific approved use, not any other business or activity.
Does a home business need a permit just to operate, without a sign?
Not if it qualifies as a 'no-impact, home-based business' under Section 400.260(B), which needs 'no permit, license, variance, or other type of prior approval,' but one of the qualifying conditions is that the business's activities 'are not visible from the street.' Putting up a visible sign takes the business outside that no-impact exemption.
Can my home-occupation sign also advertise a friend's business or a rental unit?
No. Section 400.790(A)'s footnote restricts the sign to the home occupation actually permitted on that parcel: 'Signage may only pertain to a permitted home occupation on this parcel.' A sign advertising anything else, including a separate business, a room rental, or an unapproved use, falls outside that allowance.

Sources & Official References

Other rules in Cass County

Parking Rules: Street Parking LimitsSome RestrictionsNoise Ordinances: Quiet HoursSome RestrictionsParking Rules: RV & Boat ParkingLight RestrictionsHome DaycareSome RestrictionsZoning & Home Occupation PermitsSome RestrictionsCustomer Traffic RestrictionsSome RestrictionsNoise Ordinances: Decibel LimitsSome RestrictionsParking Rules: Abandoned VehiclesSome RestrictionsParking Rules: Snow Removal Parking RulesSome Restrictions

All Cass County rules

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