Floodplain Development Permit (NFIP) — Duncan, Arizona · Requirements sheet
Verified 2026-07-06 · Source: https://duncanaz.us/wp-content/uploads/2021/03/03.09.2021-TOWN-CODE-CHAPTER-8-FLOODPLAIN-MANAGEMENT-Revised-1105.pdf
PermitBase is an independent reference and is not affiliated with any government agency. Requirements change and vary by project — confirm current details with the building department before you submit.
Floodplain Development Permit (NFIP) in Duncan, Arizona
Required before construction or development begins within any area of special flood hazard in Duncan, per Town Code Chapter 8 (Flood Damage Prevention), enacted under A.R.S. § 48-3610. Administered by the Town Manager (or designee) as Floodplain Administrator, and represented as its own 'Floodplain Permit (NFIP)' line on the Town's combined permit form.
Verified 2026-07-06 · Source
When you need this permit
- Development Permit required before construction or development begins within any area of special flood hazard (Town Code § 8-1-7.1)
- Application must include plans in duplicate drawn to scale showing the nature, location, and elevation of the area in question; existing/proposed structures; fill; storage of materials; and drainage facilities
- Must show proposed elevation (relative to mean sea level) of the lowest floor (including basement) of all structures; in Zone AO, elevation of existing grade and proposed elevation of lowest habitable floor
- Must show proposed elevation to which any structure will be floodproofed, with certification by a registered professional engineer or architect where floodproofing is used
- Base flood elevation data required for subdivision proposals or other development greater than 50 lots or 5 acres
- Description required of the extent to which any watercourse will be altered or relocated as a result of the proposed development
- The Floodplain Administrator (Town Manager or designee) reviews every permit to confirm ordinance requirements are met, other required state/federal permits have been obtained, the site is reasonably safe from flooding, and the development does not adversely affect (i.e., raise base flood elevation by more than one foot at any point) the floodway's carrying capacity
Required documents
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Fee schedule
Review timeline
Inspection process
- 1
Floodplain Administrator Review
Confirms compliance with ordinance requirements, other required state/federal permits obtained, site is reasonably safe from flooding, and no adverse effect (>1 ft base flood elevation rise) on floodway carrying capacity
See the full Duncan inspection guide — scheduling & re-inspection fees →
Tips
- The Floodplain Board for enforcement purposes is either the Flood Control District of Greenlee County or the Duncan Town Council, depending on which body is engaged in enforcement at a given time — this is a joint/shared administrative structure rather than Duncan acting entirely independently of the county on floodplain matters specifically (distinct from the Town's fully independent building-code program).
- No distinct dollar fee for the Floodplain Permit (NFIP) itself was found on the Town's published fee schedule — only a general non-refundable fee line on the combined permit form. Confirm the exact amount directly with Town Hall.
- As with all Duncan permit types, no review-timeframe figure is published for floodplain development permit review.
Frequently asked questions
Sources & verification
Verified against official sources. Last reviewed 2026-07-06.
Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Duncan building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
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