Columbia, MO Sign Regulations: Garage Sale Signs (2026)
Key Facts
- Max sign size
- 4 square feet per sign
- Max number
- 1 per abutting street
- Display window
- only during the sale
- Permit needed
- no: exempt under § 29-6.4
Summary
Columbia, Missouri allows one on-premises garage sale sign per street frontage, up to 4 square feet, displayed only during the sale: no permit required under the Unified Development Code's sign standards in Boone County.
Table 4.8-2: Residential Use Signs - Other ... Garage Sale ... Type: Advertise garage sale conducted on premises. Maximum Number: 1/each street abutting the premises. Maximum Area: 4 sq. ft./sign. Location: On premises. Other: Signs are only permitted during the time of the sale.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 138).
Full Breakdown
Columbia's Unified Development Code exempts garage sale signs from the city's sign permit requirement under City Code § 29-6.4(f)(1)(ii)(J), but Table 4.8-2 (§ 29-4.8(d)(1)(iii)) still sets the standard: one sign per street the property abuts, a 4-square-foot maximum, placement on the premises being advertised, and display only during the time of the sale. That's a looser allowance than the code gives solicitation-prohibition signs (1 sq. ft., one per property) on the same residential-signs table, reflecting the city's narrow tolerance for temporary yard signage in Boone County neighborhoods.
Violations & Fines
Signs exceeding 4 square feet, posted before or after the sale, placed off the seller's own property, or left up past closing violate § 29-4.8's residential sign standards and can be ordered removed by the city.
Frequently Asked Questions
Do I need a permit for a garage sale sign in Columbia, MO?
How big can my garage sale sign be in Columbia, Missouri?
Sources & Official References
Other rules in Columbia
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