St. Peters, MO Environmental Rules: Flood Zones (2026)
FEMA flood zone rules in St. Peters, MO, also called floodplain regulations or special flood hazard area (SFHA) rules, determine flood insurance requirements and elevation standards for new construction.
Key Facts
- Permit required for
- All construction or development in mapped flood zones
- Issued by
- Board of Aldermen or its designated representative
- Floodplain Manager
- City Engineer or City Administrator designee
- Maximum fine
- $500 per day of violation, plus costs
- Flood maps
- FEMA FIRM panels for St. Charles County, dated 2016 and 2021
Summary
In the City of St. Peters, Missouri, Section 410.110 of the Municipal Code requires a floodplain development permit for every proposed construction or development in the flood hazard areas mapped for the city, including placing manufactured homes. No person, firm, corporation, or unit of government may start any development or substantial improvement without first getting a separate permit for each structure.
Section 410.110. Floodplain Development Permit (Required). ... A floodplain development permit shall be required for all proposed construction or other development, including the placement of manufactured homes, in the areas described in Article II, § 410.040. No person, firm, corporation, or unit of government shall initiate any development or substantial improvement or cause the same to be done without first obtaining a separate floodplain development permit for each structure or other development. ... Section 410. ... 250. Violations And Penalties. ... Violation of the provisions of this Chapter or failure to comply with any of its requirements (including violations of conditions and safeguards established in connection with granting of variances) shall constitute an ordinance violation. Any person who violates this Chapter or fails to comply with any of its requirements shall, upon conviction thereof, be fined not more than five hundred dollars ($500.00) and, in addition, shall pay all costs and expenses involved in the case. Each day such violation continues shall be considered a separate offense.
Full Breakdown
The Board of Aldermen adopted this floodplain management chapter under authority the Missouri Legislature delegated in Section 79.110, RSMo, per Section 410.010. The permit requirement in Section 410.110 covers the special flood hazard areas described in Section 410.040, which includes numbered and unnumbered A zones and AE zones on the FEMA Flood Insurance Rate Maps for St. Charles County, including panels dated January 20, 2016 and March 9, 2021. Under Section 410.040, the Board of Aldermen or its designated representative issues the permit and may impose safeguards and restrictions to promote the general welfare and health of residents.
The City Engineer, or another person designated by the City Administrator, serves as Floodplain Manager under Section 410.120 and reviews every permit application under Section 410.130 to confirm the site is reasonably safe from flooding and that other required federal, state, and local approvals are in hand. Applicants must describe the land, the proposed work, the existing and proposed elevations, and the assessed and fair market value of the improvement under Section 410.140. Violating the chapter, including violating the conditions of a granted variance, is an ordinance violation under Section 410.250, punishable by a fine of up to $500 plus costs, with each day of continued violation charged as a separate offense.
Violations & Fines
Section 410.250 makes any violation of Chapter 410, including breach of variance conditions, an ordinance violation punishable by a fine of not more than $500, plus all costs and expenses of the case. Each day the violation continues counts as a separate offense, and the City may still pursue other lawful remedies.
Frequently Asked Questions
Do I need a permit to place a manufactured home in a St. Peters flood zone?
Who reviews floodplain development permit applications in St. Peters?
What is the penalty for developing in a St. Peters flood zone without a permit?
Sources & Official References
Other rules in St. Peters
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