Columbia, MO Accessory Structures: Shed & Carport Rules (2026)
Shed permit rules in Columbia, MO, also referred to as storage shed, backyard shed, or accessory building regulations, set size limits, setbacks, and when a building permit is required.
Key Facts
- Max height
- 24 ft or house height, less
- Side setback
- 3 feet minimum
- Alley setback
- 1 foot minimum
- Rear yard coverage
- Max 30% of rear yard
- Spacing from other structures
- 10 feet minimum
Summary
In Columbia, Missouri, detached carports and other accessory structures on one- and two-family lots must sit behind the house, at least 3 feet from side lines, and stand no taller than 24 feet.
Detached accessory structures shall not exceed twenty-four (24) feet in height or the height of the principal structure, whichever is less, and may not occupy more than thirty (30) percent of a required rear yard;
(ii) For any dwelling there shall be permitted one garage with space for not more than one motor vehicle for each two thousand (2,000) square feet of lot area, provided that total garage space shall not exceed the total habitable first-floor floor area of the primary dwelling;
(iii) Detached accessory structures and accessory surface improvements (such as tennis courts, basketball courts, swimming pools, or paved patios) shall be located:
(A) Not forward of the principal structure,
(B) Not less than three (3) feet from any side lot line, and
(C) Not less than one foot from any alley line;
(iv) Notwithstanding the provision of subparagraph (iii) above, when the rear lot line is common to a side or rear lot line of another lot, detached accessory structures and accessory surface improvements must be located a minimum of three (3) feet from such rear lot line. For corner lots, detached accessory structures and accessory surface improvements must be located not less than the distance required for residences from side streets; and
(v) An accessory structure or accessory surface improvement constructed as an integral part of the main building shall be subject to the setback standards affecting the
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
Under UDC § 29-3.3(ii)(2), detached accessory structures on one-family, two-family, and live-work lots in Columbia, Missouri may not exceed 24 feet in height or the principal dwelling's height, whichever is less, and may cover no more than 30% of the required rear yard. They must be located no farther forward than the principal structure, at least 3 feet from any side lot line, and at least 1 foot from any alley line; on corner lots the side-street setback matches what's required for the house itself. Under § 29-3.3(ii)(1)(iii), a detached structure must also stay at least 10 feet from any other structure on the Boone County lot. A carport built as an integral part of the main house instead follows the principal building's own setback standards.
Violations & Fines
Building or placing a carport that violates these height, coverage, or setback standards is a zoning violation subject to the citations, fines, and correction orders in UDC § 29-6.6 for noncompliant accessory structures.
Frequently Asked Questions
Can a detached carport go in the front yard in Columbia, Missouri?
How close to the property line can a carport sit in Columbia?
Sources & Official References
Other rules in Columbia
How Columbia compares: Shed Permit Requirements by City·Compare Columbia to another location·View the Missouri accessory structures overview
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