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Commercial Building Permit (New Construction / Tenant Improvement) in Thatcher, Arizona

Required for new commercial construction and for remodels/tenant improvements of existing commercial space within Thatcher town limits. Thatcher administers commercial building permitting itself through its own Community Development/Engineering Department (Building Inspector, vested as Building Official under Code of Ordinances § 150.15) — it does NOT route commercial building safety or plan review to Graham County or a third-party contractor. There is no separate commercial application: the Town's iWorq Citizen Portal (verified live 2026-08-01) offers exactly five application categories, and its single 'Building, Addition, Remodel, Outbuilding, and Pool Permit Application' is described by the Town as covering 'a residential or commercial building, addition, remodel, outbuilding, or pool permit.' New commercial work is reviewed under the 2015 IBC as amended by the Town; alterations/tenant improvements to existing buildings fall under the 2015 International Existing Building Code, adopted with no local amendments (§ 150.08).

Verified 2026-08-01 · Source

When you need this permit

  • Building permit required for new commercial construction, commercial additions, and remodels/tenant improvements, administered by the Town's own Building Inspector (Code of Ordinances § 150.15 vests the Building Official/Administrative Authority in the Office of the Building Inspector) — not Graham County
  • Apply via the iWorq Citizen Portal's combined 'Building, Addition, Remodel, Outbuilding, and Pool Permit Application' (thatcherpermitting.portal.iworq.net/THATCHER/new-permit/600/4522) — the same application used for residential; required uploads are plans in PDF format plus contractor documentation and licenses
  • New commercial construction reviewed under the 2015 IBC as adopted and amended (§ 150.01): automatic fire sprinklers required for occupancy areas of all new structures with total floor area exceeding 7,500 sq ft, AND for occupancy areas within existing structures when additions or alterations result in a gross floor area of 7,500 sq ft or more of the total floor area (this does not exempt occupancies for which the adopted IBC itself requires sprinklers below 7,500 sq ft)
  • Town-wide height caps (§ 150.01(B)(2)): no building may exceed 45 feet from grade to the highest point, or 30 feet from grade to the top of the highest outside wall
  • Tenant improvements / alterations of existing buildings are governed by the 2015 International Existing Building Code, adopted by reference with no local amendments (§ 150.08)
  • Trade work under the 2014 NEC (§ 150.03), 2015 IPC (§ 150.02), 2015 IMC (§ 150.04), and 2015 IFGC (§ 150.07) as adopted/amended; fire-safety review under the 2015 IFC as amended (§ 150.05) — no new building permits for shake/wood shingle roofing except repairs or additions under 20% of existing floor area
  • Accessibility (§ 150.13): standards applicable to public accommodations and commercial facilities under Arizona's disability-access statute (A.R.S. § 41-1492.03) are incorporated into the Town's building codes, applying to new construction and alterations
  • The building must conform to the Zoning Ordinance in addition to Chapter 150 building codes (§ 150.14); commercial zones carry specific rules such as the cargo-container appearance/site-plan-review requirements in Zoning Ordinance § 13.8.C
  • No energy-code compliance path is locally enforced: the 2009 IECC was explicitly rescinded (§ 150.09) and IBC § 110.3.7 (Energy Efficiency Inspections) was deleted

Required documents

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Fee schedule

Commercial Building Permit / Plan Review FeeCode of Ordinances § 150.98 ('Permit fees will be set by a resolution of the Town Council from time to time') — section text re-fetched directly from the amlegal code library 2026-08-01. No commercial-specific fee, plan-review fee, or valuation-based fee table exists anywhere in the published code, and a fresh 2026-08-01 web search for a Thatcher fee-schedule resolution again found nothing published. This is the same confirmed, exhaustively-chased gap documented on every other permit type in this file (prior chases 2026-07-07 and 2026-07-20 covered the Document Center, Forms Center, Finance page, agendas archive, and Wayback Machine). Call the Building Inspector (928-428-2290) or use the iWorq portal's live application flow for current figures.
Set by Town Council resolution — no fixed dollar figure or valuation-based fee table is published anywhere

Review timeline

Plan reviewThatcher’s published plan-review target
0–10 business days

How long did your Commercial Building Permit (New Construction / Tenant Improvement) permit actually take in Thatcher?

Anonymous — one question, no email. Answers are combined and only shown once at least 5 people have reported.

Inspection process

  1. 1

    Foundation/Footing

    Before concrete pour, per the 2015 IBC as adopted

  2. 2

    Underground Plumbing/Electrical

    Below-slab plumbing (12-inch minimum sewer depth per the Town's amendment) and any under-slab electrical before cover

  3. 3

    Framing / Rough Trades

    Structural framing plus rough electrical (2014 NEC), plumbing (2015 IPC), and mechanical (2015 IMC) before walls are closed

  4. 4

    Final

    Completed work verified against approved plans, including fire-safety items under the 2015 IFC as amended and accessibility items per § 150.13, before occupancy

See the full Thatcher inspection guide — scheduling & re-inspection fees →

Tips

  • Tenant improvement is NOT a distinct permit type in Thatcher — verified live 2026-08-01: the iWorq Citizen Portal offers exactly five application categories (Building/Addition/Remodel/Outbuilding/Pool; Infrastructure; Sign; Underground Work; Solar/Electrical/Gas/Plumbing), and no TI-specific or commercial-specific application, fee, or timeline is published anywhere. A commercial TI is applied for as remodel scope on the same combined building permit application and is reviewed under the 2015 IEBC, which the Town adopted with no local amendments (§ 150.08). No separate commercial-tenant-improvement-permit entry is warranted for this jurisdiction.
  • TI planners: the Town's sprinkler amendment (§ 150.01(B)(1)) is triggered by additions or alterations that result in a gross floor area of 7,500 sq ft or more of TOTAL floor area — an alteration/expansion that pushes an existing building past that threshold makes automatic sprinklers mandatory for its occupancy areas, on top of anything the unamended 2015 IBC already requires below the threshold.
  • No commercial site-plan checklist is published — the only checklist linked from the portal's building-permit application is the 'Single Residence Site Plan Checklist' (verified live 2026-08-01). Confirm commercial site-plan submittal expectations directly with the Building Inspector (928-428-2290) before drawing.
  • The inspection sequence listed here reflects the adopted 2015 IBC/trade-code framework; Thatcher publishes no commercial-specific inspection-sequence document — confirm required hold points with the Building Inspector when the permit is issued.
  • Roofing: the Town's IFC amendment bars new building permits for shake/wood shingle roofing except repair/replacement of existing shake roofs or additions under 20% of existing floor area (§ 150.05(B)(1)).
  • Sign permits and offsite/public infrastructure work are separate iWorq applications (Sign Permit Application and Infrastructure Permit Application) — budget for those as distinct submittals alongside a commercial build-out.
  • Fee chase trail: § 150.98 (re-fetched 2026-08-01) defers ALL permit fees to an unpublished Town Council resolution; no valuation-based building-permit fee table, plan-review fee, or commercial-specific fee exists anywhere online after exhaustive chases on 2026-07-07, 2026-07-20, and 2026-08-01. This is a confirmed absence, not an unfinished lookup — get current figures from the Building Inspector (928-428-2290) or the iWorq application flow.
  • Change of use/occupancy of an existing building falls under the 2015 IEBC as adopted and may trigger the accessibility standards incorporated by § 150.13 (A.R.S. § 41-1492.03, public accommodations/commercial facilities) for the altered areas.

Frequently asked questions

Thatcher requires a commercial building permit (new construction / tenant improvement) for: Building permit required for new commercial construction, commercial additions, and remodels/tenant improvements, administered by the Town's own Building Inspector (Code of Ordinances § 150.15 vests the Building Official/Administrative Authority in the Office of the Building Inspector) — not Graham County; Apply via the iWorq Citizen Portal's combined 'Building, Addition, Remodel, Outbuilding, and Pool Permit Application' (thatcherpermitting.portal.iworq.net/THATCHER/new-permit/600/4522) — the same application used for residential; required uploads are plans in PDF format plus contractor documentation and licenses; New commercial construction reviewed under the 2015 IBC as adopted and amended (§ 150.01): automatic fire sprinklers required for occupancy areas of all new structures with total floor area exceeding 7,500 sq ft, AND for occupancy areas within existing structures when additions or alterations result in a gross floor area of 7,500 sq ft or more of the total floor area (this does not exempt occupancies for which the adopted IBC itself requires sprinklers below 7,500 sq ft); Town-wide height caps (§ 150.01(B)(2)): no building may exceed 45 feet from grade to the highest point, or 30 feet from grade to the top of the highest outside wall; Tenant improvements / alterations of existing buildings are governed by the 2015 International Existing Building Code, adopted by reference with no local amendments (§ 150.08); Trade work under the 2014 NEC (§ 150.03), 2015 IPC (§ 150.02), 2015 IMC (§ 150.04), and 2015 IFGC (§ 150.07) as adopted/amended; fire-safety review under the 2015 IFC as amended (§ 150.05) — no new building permits for shake/wood shingle roofing except repairs or additions under 20% of existing floor area; Accessibility (§ 150.13): standards applicable to public accommodations and commercial facilities under Arizona's disability-access statute (A.R.S. § 41-1492.03) are incorporated into the Town's building codes, applying to new construction and alterations; The building must conform to the Zoning Ordinance in addition to Chapter 150 building codes (§ 150.14); commercial zones carry specific rules such as the cargo-container appearance/site-plan-review requirements in Zoning Ordinance § 13.8.C; No energy-code compliance path is locally enforced: the 2009 IECC was explicitly rescinded (§ 150.09) and IBC § 110.3.7 (Energy Efficiency Inspections) was deleted. If your project isn't listed, confirm with Town of Thatcher Community Development/Engineering (Building Department) — administered jointly with Planning & Zoning under the Office of the Town Manager at 928-428-2290 before starting work.

No dollar figure is published. Code of Ordinances § 150.98 sets all permit fees by Town Council resolution, and no fee-schedule resolution or valuation-based fee table has been located online after repeated exhaustive searches. Call the Building Inspector at 928-428-2290 or start the iWorq portal application to obtain current fees.

Thatcher's published plan-review target for a commercial building permit (new construction / tenant improvement) is 0–10 business days.

You'll need: iWorq Citizen Portal Building Permit Application; Construction Drawings (PDF); Contractor Documentation and Licenses; Site Plan. See the required-documents checklist on this page for details on each.

Thatcher requires 4 inspection(s) for a commercial building permit (new construction / tenant improvement), in order: Foundation/Footing, Underground Plumbing/Electrical, Framing / Rough Trades, Final. Schedule each through Town of Thatcher Community Development/Engineering (Building Department) — administered jointly with Planning & Zoning under the Office of the Town Manager (928-428-2290).

Apply through Town of Thatcher Community Development/Engineering (Building Department) — administered jointly with Planning & Zoning under the Office of the Town Manager at 3700 W. Main St., PO Box 670, Thatcher, AZ 85552. Phone: 928-428-2290, email: mpayne@thatcher.az.gov. Office hours: Monday - Thursday, 7:00 a.m. - 6:00 p.m. (Town Hall 4/10 schedule, closed Fridays). Building Inspector: Mike Payne. All residential and commercial building, addition, remodel, outbuilding, pool, solar, electrical, gas, plumbing, sign, infrastructure, and underground-work permit applications are submitted online through the Town's iWorq Citizen Portal (thatcherpermitting.portal.iworq.net), which requires uploaded PDF plans and contractor licensing documentation; a Site Plan Review Checklist (2 copies, D-size 24"x36") must accompany building plans and the permit application to the Building Inspector.. Official information: https://www.thatcher.az.gov/departments/community-development-engineering.

No. Commercial projects use the same single iWorq Citizen Portal application as residential — the Town describes it as covering 'a residential or commercial building, addition, remodel, outbuilding, or pool permit.' There is no distinct tenant-improvement permit type, fee, or timeline; a commercial TI is applied for as remodel scope on that application and reviewed under the 2015 International Existing Building Code, which Thatcher adopted without local amendments.

The Town of Thatcher itself. Code of Ordinances § 150.15 vests the Building Official/Administrative Authority in the Town's own Building Inspector for all building, plumbing, electrical, and other inspections, and the Town's economic-development materials direct developers to the Town's Planning & Zoning division for building permit applications and site plan review. Commercial building safety is not contracted to Graham County or a third party.

Sources & verification

Verified against official sources. Last reviewed 2026-08-01.

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 Thatcher building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.

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