This is PermitBase’s published record for Duncan as of 2026-07-06. It has since been superseded — see the current record. A historical record reflects what PermitBase had verified at that time; it may not capture a real-world change the jurisdiction had made but PermitBase had not yet verified, and it includes any errors we later corrected. Snapshots are never edited retroactively.

Duncan building permits

Verified

Duncan, Arizona — as published 2026-07-06.

Verified 2026-07-06 · Source

Codes adopted

Arizona has NO statewide mandatory building code floor for general construction — code adoption is a per-city/county authority under state enabling statutes (A.R.S. Title 9 for municipalities). The Town of Duncan is a small incorporated town that runs its own building-permit program directly out of Town Hall (the Town Manager's office functions as Building Official) rather than deferring to Greenlee County; this is confirmed by the Town's own Building Permits & Fees page, its Chapter 7 (Building) town code chapter, its Schedule of Fees and Charges, and its paper 'Application for Building Permit and Inspection' form, all of which are Duncan's own documents (not county documents). Source: Town of Duncan Building Permits & Fees page (duncanaz.us/home/services/building-permits-fees/) and Town of Duncan Town Code Chapter 7 — Building (Rev. 6/06).2006 International Building Code (IBC), adopted by reference as the Town's building code (Town Code § 7-1-1, Rev. 6/06). This is the only building-code edition Duncan's published town code identifies by year; the Town has not published any subsequent code-update ordinance superseding the 2006 IBC adoption. Source: Town of Duncan Town Code Chapter 7 — Building, Article 7-1, Section 7-1-1.'Adobe Code' adopted by reference as a supplement to the (Uniform) Building Code (Town Code § 7-1-3, Rev. 6/06) — reflecting the region's traditional adobe construction. Source: Town of Duncan Town Code Chapter 7 — Building, Article 7-1, Section 7-1-3.Uniform Plumbing Code, 'current edition' as published by the International Association of Plumbing and Mechanical Officials (IAPMO), adopted by reference (Town Code Article 7-2, Rev. 6/06). The ordinance text itself does not pin a specific year/edition — it self-updates to whichever edition IAPMO currently publishes, which is a town-code drafting convention rather than a fixed-year adoption. Source: Town of Duncan Town Code Chapter 7 — Building, Article 7-2.National Electrical Code (NEC), 'current edition' as published by the National Fire Protection Association (NFPA), adopted by reference (Town Code Article 7-3, Rev. 6/06). Same self-updating drafting convention as the plumbing code — no fixed year is specified in the ordinance text. Source: Town of Duncan Town Code Chapter 7 — Building, Article 7-3.Uniform Mechanical Code, 'current edition' as published by the International Association of Plumbing and Mechanical Officials (IAPMO), adopted by reference (Town Code Article 7-4, Rev. 6/06). Source: Town of Duncan Town Code Chapter 7 — Building, Article 7-4.Uniform Solar Energy Code and Uniform Sound Transmission Control Code, both adopted by reference as additional codes (Town Code Article 7-5, Rev. 6/06). Source: Town of Duncan Town Code Chapter 7 — Building, Article 7-5.The Building Official/administrative authority function for all building, plumbing, electrical, and other inspections under Chapter 7 is vested in the office of the Town Manager, who may authorize deputies to perform inspection work (Town Code Article 7-6, Rev. 6/06). Source: Town of Duncan Town Code Chapter 7 — Building, Article 7-6.Asbestos-containing materials (ACM) in older commercial buildings: any renovation, demolition, or removal of a commercial building must first obtain a Building Permit, contingent on proof of compliance with State/Federal ACM laws, including an asbestos survey and handling/removal by an Arizona State Licensed ACM Contractor, coordination with the Arizona Department of Environmental Quality, and disposal at a State-approved ACM landfill (Town Code Article 7-7, effective 6/11/2001). Source: Town of Duncan Town Code Chapter 7 — Building, Article 7-7.Floodplain/flood-damage-prevention regulations are adopted separately under Chapter 8 (Rev. 11/05), enacted under authority of A.R.S. § 48-3610, and administered by the Town Manager (or designee) acting as Floodplain Administrator, with the Floodplain Board being 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 (A.R.S. § 48-3601 definition). A separate Development Permit (the Floodplain Permit line on the combined Zoning/Building/Historic District/Floodplain Permit form) is required before construction or development begins within any area of special flood hazard. Source: Town of Duncan Town Code Chapter 8 — Floodplain Management, Articles 8-1-1, 8-1-7.2.A separate Historic District permit track exists on the Town's combined permit form ('Zoning Use, Building, Historic District and Floodplain Permit'), implying a locally designated historic district with its own review layer, but no standalone Historic District ordinance chapter or design-guideline document was found published on the Town's website to independently verify its scope or criteria. Source: Town of Duncan Zoning Use, Building, Historic District and Floodplain Permit form (Rev. 4/2006).

Permit types & fees

Building Permit (Construction / Alteration / Repair / Moving / Demolition)

Verified

The Town of Duncan's single, general-purpose building permit, required for construction, alteration, repair, moving, or demolition of a structure within Town limits. Reviewed against the 2006 International Building Code and Adobe Code (Town Code Chapter 7) by the Building Official function housed in the Town Manager's office. Applied for using the one-page 'Application for Building Permit and Inspection' form at Town Hall.

Verified 2026-07-06 · Source

Requirements

Building permit required for construction, alteration, repair, moving, or demolition of a structure within Duncan town limits, per Town Code Chapter 7
Work must conform to the Building, Plumbing, Gas, and Electrical Codes of the Town of Duncan as referenced on the permit application
Application must state size, wall/roof/floor materials, use, approximate cost, location/APN, owner, and contractor
Whenever a building permit is issued, the building must also conform to the Town's Zoning Ordinance (Town Code § 7-1-2)
Contractor Tax License required to be listed if estimated project valuation exceeds $50,000 (per the combined Zoning/Building/Historic District/Floodplain Permit form)
Approved in person by the Building Official; no online submittal portal is published

Required documents

RequiredApplication for Building Permit and InspectionTown of Duncan's one-page building permit application — General Description checkboxes for Construction/Alteration/Repair/Moving/Demolition, size, wall/roof/floor materials, use, approximate cost, location/APN, owner, and contractor
OptionalZoning Use, Building, Historic District and Floodplain PermitCombined multi-track permit form used when zoning use review, historic district review, and/or floodplain review also apply to the same project

Fee schedule

Fee type	Amount	Notes
Building Permit Fee	$30.00 plus $4.11 per $1,000 of valuation	Town of Duncan Schedule of Fees and Charges (Fee-Schedule-5.2026.pdf, header-labeled 'PROPOSED'), Planning and Zoning section, Building Permits item B — this figure is unchanged from the prior (2023) fee schedule revision, so it is stable across at least two published revisions
Building Permit Renewal	50% of the original permit fee	Town of Duncan Schedule of Fees and Charges, Building Permits item C
Building Plan Review	65% of the Building Permit Fee	Town of Duncan Schedule of Fees and Charges, Building Permits item D

Mobile Home Permit

Verified

A separately fee-scheduled permit for placement of a mobile/manufactured home within the Town of Duncan, distinct from the general Building Permit fee line on the Town's Schedule of Fees and Charges.

Verified 2026-07-06 · Source

Requirements

Separate Mobile Home Permit fee line applies (distinct from the standard valuation-based Building Permit fee formula)
Manufactured/mobile home construction and installation standards themselves are set at the State level (Arizona Department of Fire, Building and Life Safety / Office of Manufactured Housing, per A.R.S. Title 41), consistent with statewide practice; the Town's Mobile Home Permit covers local placement/site approval
Submitted via the same 'Application for Building Permit and Inspection' form used for general building permits (the form's 'General Description of Proposed Work' does not have a distinct mobile-home checkbox; the Mobile Home Permit is distinguished purely by its separate fee-schedule line item)

Required documents

RequiredApplication for Building Permit and InspectionSame general-purpose Town of Duncan building permit application used for mobile home placement

Fee schedule

Fee type	Amount	Notes
Mobile Home Permit	$50.00	Town of Duncan Schedule of Fees and Charges (Fee-Schedule-5.2026.pdf, header-labeled 'PROPOSED'), Planning and Zoning section, Building Permits item A. Flagged for confidence: an earlier (2023) fee schedule revision lists this same line item at $400.00 rather than $50.00 — a substantial change between the two published revisions found. The 5.2026 version is the most recently dated document currently linked from the Town's live site, so its $50.00 figure is used as current, but this is a genuine downward revision worth re-confirming directly with Town Hall given the size of the discrepancy between the two source documents.

Zoning Use Permit

Verified

Required whenever a proposed use or structure must be confirmed against the Town's Zoning Ordinance (Town Code Chapter 15), administered through the combined Zoning Use, Building, Historic District and Floodplain Permit form and, where the requested use is not permitted outright, routed to the Planning & Zoning Commission or, on appeal/variance, the Board of Adjustment.

Verified 2026-07-06 · Source

Requirements

Zoning Use Permit required to confirm a proposed use/structure complies with existing zoning (Town Code Chapter 15, Zoning Regulations)
A 'Use Permitted on Appeal' (variance) route exists through the Planning & Zoning Commission, with a further Board of Adjustment hearing route for amendments (changed use)
A Zoning Use Permit becomes void six months after issuance unless substantial utilization has begun
The permit must be posted on-site during construction
Property may be subject to erosion hazards and other unmapped floodplains beyond what is shown on FEMA mapping; the floodplain data the Town relies on is the best available, and the owner is responsible for providing additional technical floodplain information

Required documents

RequiredZoning Use, Building, Historic District and Floodplain PermitTown of Duncan's combined permit form covering Zoning Use Permit, Use Permitted on Appeal (Variance), Amendment (changed use), Building Permit, Septic System Permit, and Floodplain Permit (NFIP) tracks on a single document

Fee schedule

Fee type	Amount	Notes
Amendment Application	$200	Town of Duncan Schedule of Fees and Charges, Planning and Zoning section, item 2
Appeal to Board of Adjustments	$200	Town of Duncan Schedule of Fees and Charges, Planning and Zoning section, item 3
Administrative Permits	$50	Town of Duncan Schedule of Fees and Charges, Planning and Zoning section, item 4
Petition Exception	$200	Town of Duncan Schedule of Fees and Charges, Planning and Zoning section, item 5
Reversion of Acreage or Abandonment	$300	Town of Duncan Schedule of Fees and Charges, Planning and Zoning section, item 6

Floodplain Development Permit (NFIP)

Verified

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

Requirements

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

RequiredZoning Use, Building, Historic District and Floodplain PermitTown of Duncan's combined permit form; Floodplain Permit (NFIP) section requires Date of Approval and confirms whether blueprints are approved
RequiredDevelopment Permit plan setPlans in duplicate, drawn to scale, per Town Code § 8-1-7.1 requirements (site elevations, structures, fill, drainage, floodproofing certification where applicable)

Fee schedule

Fee type	Amount	Notes
Floodplain Permit (NFIP)	Non-refundable fee (amount not separately itemized on the Town's published Schedule of Fees and Charges)	The combined Zoning Use/Building/Historic District/Floodplain Permit form has a 'Non-refundable fee received by' line under a general 'Fees' section, but the Town's Schedule of Fees and Charges does not list a distinct dollar figure specifically labeled for the Floodplain Permit (NFIP) line, separate from the general Building Permit valuation-based fee. Source: Town of Duncan Zoning Use, Building, Historic District and Floodplain Permit form; Town of Duncan Schedule of Fees and Charges (no distinct Floodplain Permit fee line found).

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.

Later version (2026-07-07) →View current record →All versions →