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St. Peters, MO Swimming Pools & Spas: Pool Permits (2026)

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

Swimming pool permit rules in St. Peters, MO, also covering above-ground pools, in-ground pools, and spa installations, set fencing, barrier, alarm, and inspection requirements.

Key Facts

Code adopted
International Swimming Pool and Spa Code, 2021 Edition
Enforcing official
Building Commissioner
Fee source
Appendix A Schedule of Fees, Title V
Plan-review docs
Signed/sealed by Missouri architect or engineer
Refund on unused permit
90% if no plan review, 80% if reviewed
Max penalty
$500 fine and/or 90 days jail per day

Summary

In the City of St. Peters, Missouri, building a residential swimming pool or spa requires a permit under the 2021 International Swimming Pool and Spa Code, adopted in Section 523.010 and enforced by the Building Commissioner. A permit fee under the Title V Schedule of Fees is charged before work begins, and construction documents signed by a licensed Missouri architect or engineer are required for plan review.

A certain document, one (1) copy of which has been on file for at least ninety (90) days in the office of the City Clerk of the City of St. ... Peters, being marked and designated as "The International Swimming Pool and Spa Code (ISPSC), 2021 Edition," as published by the International Code Council, Inc., as amended, and is hereby adopted as the Swimming Pool and Spa Code of the City ... 108.2 Schedule Of Permit Fees. Where work requires a permit, a fee for each permit shall be paid as required, in accordance with Appendix A, Schedule of Fees, of Title V of the Municipal Code of the City of St. Peters, Missouri.

Full Breakdown

Section 523.010 adopts the 2021 International Swimming Pool and Spa Code (ISPSC) as the City's Swimming Pool and Spa Code, with "Code Official" read as the Building Commissioner (Section 523.030) and "Jurisdiction" read as the City of St. Peters (Section 523.020). Section 523.050 amends the adopted code locally. Amendment 106.1 requires construction documents, drawn to scale and, unless waived by the Building Official for work not needing a registered design professional, signed and sealed by a Missouri-licensed architect or engineer, submitted electronically with the permit application.

Amendment 108.2 sets the permit fee under the Appendix A Schedule of Fees in Title V of the Municipal Code. Refunds follow amendment 108.6: a full refund for an erroneously collected fee, 90 percent back if no work or plan review occurred, 80 percent back if a plan review was required but no work was done, and no refund once a permit is voided or work has started, on written application within 180 days of payment. Repairs and installations caused by code enforcement must be executed in a workmanlike manner per amendment 110.90.

Appeals from a Code Official decision go to the Board of Appeals established under Chapters 410 and 505, filed on a form within twenty days of the notice, per amendment 111.1.

Violations & Fines

Section 523.060, Violations And Penalties, makes any violation of the adopted Swimming Pool and Spa Code an offense punishable by a fine of up to $500, imprisonment in the City or County Jail for up to ninety days, or both, with each day a violation is committed or permitted to continue treated as a separate, punishable offense.

Frequently Asked Questions

Does St. Peters require a permit to build a pool?
Yes. Section 523.010 adopts the 2021 International Swimming Pool and Spa Code, and Section 523.050 amendment 108.2 charges a permit fee under the Appendix A Schedule of Fees, Title V of the Municipal Code, for any pool or spa work covered by the code, before construction begins.
Who reviews residential pool permit applications in St. Peters?
The Building Commissioner reviews pool permit applications as the Code Official under Section 523.030, and can waive the requirement for a registered design professional's stamp on construction documents under amendment 106.1 if the proposed work is simple enough that plan review is not needed to confirm compliance.
Can I get a refund if I cancel a pool permit?
If no work has been done and no plan review was needed, amendment 108.6 refunds 90 percent of the pool permit fee. If a plan review was required but no work started, the refund drops to 80 percent. No refund is issued once the permit is voided or any work has begun at the site.

Sources & Official References

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