Florissant, MO Swimming Pools & Spas: Pool Permits (2026)
Swimming pool permit rules in Florissant, MO, also covering above-ground pools, in-ground pools, and spa installations, set fencing, barrier, alarm, and inspection requirements.
Key Facts
- Code adopted
- 2021 International Swimming Pool and Spa Code
- Permit required
- before construction, alteration or demolition
- Exempt
- pools/spas 24 inches deep or less
- Exempt
- surface area 250 sq ft or less
- Appeals body
- Planning and Zoning Commission
- Violation penalty
- Section 100.080, daily offense
Summary
Florissant requires a building permit before constructing, enlarging, altering or demolishing a residential pool or spa under Section 105.1 of the adopted 2021 Swimming Pool and Spa Code. Small pools under twenty-four inches deep or under 250 square feet of surface area, and purely decorative ponds without a filtration system, are exempt.
Section 105.1 When required (Amended). Any owner, or owner's authorized agent who desires to construct, enlarge, alter, repair, move, or demolish a pool or spa or to erect, install, enlarge, alter, repair, remove, convert or replace any system, the installation of which is regulated by this code, or to cause any such work to be performed, shall first make application to the Code Official and obtain the required permit for the work. Exemptions: ... Pools and spas up to twenty-four (24) inches in depth or, ... A potential surface area of two hundred and fifty (250) square feet or less.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: rev 4989395; v43 updated 2026-05-26; through 05-26-2026).
Full Breakdown
1 requires any owner or authorized agent who wants to construct, enlarge, alter, repair, move or demolish a pool or spa, or to install, alter, repair, remove, convert or replace a regulated system, to first apply to the Code Official and obtain a permit before the work starts. The code carves out three exemptions from that permit requirement: pools and spas no more than twenty-four inches deep, pools or spas with a surface area of 250 square feet or less, and bodies of water not intended for swimming or bathing, such as fishponds and lily ponds, that are purely decorative or landscaping features without a recirculation or filtration system.
2. A permitted pool or spa built to an earlier code edition can keep its original forty-two inch fence so long as the structure is never repaired or replaced; once it is, the barrier has to be brought up to the current code.
Violations & Fines
Building, enlarging or demolishing a pool or spa without the required permit, or in violation of approved plans or a Code Official directive, is subject to the penalties of Section 100.080 under Section 113.4, with each day the violation continues after notice a separate offense.
Frequently Asked Questions
Do I need a permit for a small above-ground pool in Florissant?
Is a decorative fish pond regulated as a swimming pool?
Who hears an appeal of a pool permit decision?
Sources & Official References
Other rules in Florissant
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