Lee's Summit, MO Building Safety: Building Permits (2026)
Key Facts
- Governing section
- Sec. 7-127, Building Code
- Application form
- Written, Building Official form, Sec. 7-129
- Exempt: sheds
- One-story, up to 120 sq ft
- Exempt: fences
- Not over 6 feet high
- Exempt: decks
- No more than 30 inches above grade
- Hazmat permit
- Required if Fire Chief mandates it
Summary
Lee's Summit requires a permit before almost any construction, alteration, or system work on a building. Sec. 7-127 makes any owner or agent who wants to build, enlarge, alter, repair, move, demolish or change a building's occupancy, or touch its electrical, gas, mechanical, plumbing or elevator systems, apply to the Building Official first.
Any owner or authorized agent who intends to construct, enlarge, alter, repair, move, demolish, or change the occupancy of a building or structure, or to erect, install, enlarge, alter, repair, remove, convert or replace any electrical, gas, mechanical, plumbing, or elevator system, the installation of which is regulated by this Code, or to cause any such work to be done, shall first make application to the Building Official and obtain the required permit.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 55 | Unified Development Ordinance: Supplement 15).
Full Breakdown
Under Sec. 7-127 of the Lee's Summit Building Code, obtaining a permit is the default rule for any regulated construction or system work: new construction, additions, alterations, repairs, moving a structure, demolition, occupancy changes, and any electrical, gas, mechanical, plumbing or elevator installation. Projects involving hazardous materials may also need a separate hazardous materials permit before the building permit issues if the Fire Chief requires it. Sec. 7-129 requires the application to be filed in writing on a Building Official form before any permit issues.
Sec. 7-128 carves out a detailed list of exemptions so homeowners don't need a permit for minor work: retaining walls up to four feet tall, decks and walkways no more than thirty inches above grade with no roof, one-story sheds and playhouses up to 120 square feet, fences up to six feet, above-ground prefab pools under 5,000 gallons and less than twenty-four inches deep, painting and similar finish work, and swing sets. Electrical exemptions cover minor repairs like lamp replacement and connecting portable equipment to existing outlets; plumbing exemptions cover stopping leaks and replacing a water heater in a one- or two-family home.
None of these exemptions authorizes work that otherwise violates the Code, and emergency repairs still require a permit application submitted the next business day. Once a permit issues, Sec. 7-158 makes the work subject to inspection and requires it to stay accessible for the Building Official to review before it's covered up.
Violations & Fines
Building without a required permit is enforced as a Code violation, and Sec. 7-128's exemptions never authorize work that otherwise breaks the Code. Sec. 7-136 requires the permit to be displayed at the job site, and inspectors can assess reinspection fees under Sec. 7-160(K) when work isn't ready or corrections weren't made.
Frequently Asked Questions
Do I need a permit to build a shed in Lee's Summit?
What work always needs a building permit?
Can I build a six-foot fence without a permit?
Sources & Official References
Other rules in Lee's Summit
Compare Lee's Summit to another location·View the Missouri building safety overview
See something wrong?
Help us keep this page accurate. If you notice an error or outdated information, let us know.
Building Permits in Nearby Cities
How other cities in Jackson County handle building permits.