Chandler, AZ Environmental Rules: Flood Zones (2026)
FEMA flood zone rules in Chandler, AZ, also called floodplain regulations or special flood hazard area (SFHA) rules, determine flood insurance requirements and elevation standards for new construction.
Key Facts
- Floodplain authority
- Maricopa County Flood Control District, not the City
- Floodplain Administrator
- Chandler's designated City Engineer (§ 43-5.2)
- Permit rule
- No City permit until a County floodplain permit is obtained
- Governing state law
- A.R.S. Title 48, Chapter 21, Article 1
- Penalty authority
- Code § 1.8 and A.R.S. § 48-3615
Summary
Chandler doesn't run its own floodplain permitting desk. City Code § 43-5.1 hands floodplain management for flood-hazard zones inside city limits to the Maricopa County Flood Control District, so development in a mapped flood zone needs a County floodplain use permit before the City will issue anything.
In accordance with A.R.S. Article 1, Chapter 21, Title 48, floodplain management within the City is hereby declared to be vested in the Maricopa County Flood Control District; and development within areas designated as flood hazard zones located within City limits shall be subject to such rules and regulations as may be established by the State and the Maricopa County Flood Control District in conformance with the National Flood Insurance Program requirements and the provisions of A.R.S. Article 1, Chapter 21, Title 48.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 79).
Full Breakdown
S. Title 48, Chapter 21, Article 1, that floodplain management within Chandler is vested in the Maricopa County Flood Control District, and that development in designated flood hazard zones inside city limits is governed by state and County rules consistent with the National Flood Insurance Program. 2 that's Chandler's designated City Engineer, or another employee the Public Works and Utilities Director assigns. A), helping the Federal Insurance Administrator delineate special flood hazard boundaries on local maps, supplying occupancy and land-use data on request, coordinating with neighboring jurisdictions to avoid worsening flood hazards, and filing an annual progress report to the Federal Insurance Administrator.
3 is a warning-and-disclaimer clause: compliance with the flood-protection standards is 'considered reasonable for regulatory purposes' but doesn't guarantee land outside a special flood hazard area, or permitted uses within one, will stay free from flooding or flood damage, and it creates no City liability. S. § 48-3615.
Violations & Fines
Violating Chandler's floodplain development rules is a violation of both City Code § 43-5 and A.R.S. Title 48, Chapter 21, punishable under the penalty schedule in Chandler City Code § 1.8 and the state penalties set out at A.R.S. § 48-3615: enforced jointly by the City's Floodplain Administrator and the Maricopa County Flood Control District, which controls permit issuance for the mapped hazard area.
Frequently Asked Questions
Who regulates floodplain development in Chandler, the city or the county?
Can I get a Chandler building permit for property in a flood hazard zone without a county floodplain permit?
Is the City liable if my Chandler property floods despite following the rules?
Sources & Official References
Other rules in Chandler
Compare Chandler to another location·View the Arizona environmental rules overview
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Flood Zones in Nearby Cities
How other cities in Maricopa County handle flood zones.