Willcox building permits

Building department

Address

101 S. Railroad Ave, Suite B, Willcox, AZ 85643

Phone

520-384-4271

Email

permits@willcox.az.gov

Office hours

City Hall general contact: (520) 384-4271. The Building Permit Application itself (submitted via the City's online iWorQ portal, willcox.portal.iworq.net) lists the Development Services Department at 101 S. Railroad Ave, Willcox, AZ 85643, phone (520) 766-4211 — the City's Building Permits page directs the public to (520) 384-4271 for general questions and to schedule inspections, while the online application form itself lists the (520) 766-4211 Development Services line; both numbers are cited here since both appear on the City's own current materials. Applications may be submitted online via the iWorQ Building Permit Application portal (willcox.portal.iworq.net/WILLCOX/new-permit/600/5244) or in person at City Hall/Visitor Center, 101 S. Railroad Ave, Suite B.

Website

Official site

Permit portal

Apply online at Willcox's portal

Inspection guide

See how inspections work in Willcox — sequence, scheduling & re-inspection fees.

Codes adopted

Arizona has no statewide building code for non-state buildings; codes are adopted locally. According to the International Code Council, codes are adopted locally in Arizona and are predominantly the I-codes, with different cities and counties choosing their own editions and local amendments. The Arizona State Fire Code (adopting the 2018 IFC) applies only to state and county buildings, public and private schools, and non-residential occupancies in areas without a locally adopted fire code — it does not establish a statewide residential or commercial building code floor. Each city and county adopts its own code editions independently, resulting in different I-Code years and amendment sets across jurisdictions. There is no state-mandated minimum edition; enforcement is entirely local. Always confirm the adopted edition and any local amendments with the specific jurisdiction before submitting plans.

• 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). The City of Willcox is a home-rule city that independently adopts and administers its own construction codes through its Community Development Department / Building Safety Division; it does not defer building permitting to Cochise County. Source: Willcox Municipal Code § 10.01.020 (Building inspector) and § 10.01.040 (Adoption by Reference of International Technical Codes), American Legal Publishing code library (current through Ord. NS374, 2026).
• 2018 International Building Code (IBC), as amended in Exhibit A to Ordinance NS374, adopted by reference (Willcox Municipal Code § 10.01.040.A). Per the City's Building Permits page, the newly adopted 2018 ICC code suite and 2017 NEC become effective and required for all applicable permit applications submitted on or after April 1, 2026; permit applications submitted before that date remain on the City's prior code cycle. Source: Willcox Municipal Code § 10.01.040; City of Willcox Building Permits page (willcox.az.gov/building-permits); '2018 Building Codes Adoption with Amendments' (Exhibits A-J to Ord. NS374).
• 2018 International Residential Code (IRC), as amended in Exhibit B to Ordinance NS374, adopted by reference (§ 10.01.040.B), effective for applications submitted on/after April 1, 2026.
• 2018 International Mechanical Code (IMC), as amended in Exhibit C to Ordinance NS374, adopted by reference (§ 10.01.040.C).
• 2018 International Plumbing Code (IPC), as amended in Exhibit D to Ordinance NS374, adopted by reference (§ 10.01.040.D), including a locally-inserted Water Conservation Code appendix (see localAmendments).
• 2017 National Electrical Code (NEC), as amended in Exhibit E to Ordinance NS374, adopted by reference (§ 10.01.040.E), published by the National Fire Protection Association — one edition behind the 2018 ICC cycle, consistent with standard NFPA/ICC release-cycle offset.
• 2018 International Fuel Gas Code (IFGC), as amended in Exhibit F to Ordinance NS374, adopted by reference (§ 10.01.040.F).
• 2018 International Fire Code (IFC), as amended in Exhibit G to Ordinance NS374, adopted by reference (§ 10.01.040.G) as the City's uniform fire code, administered by the Building Safety Division under the Community Development Department (fire-code-official references are replaced by 'Building Official' per the City's amendment).
• 2018 International Swimming Pool and Spa Code (ISPSC), as amended in Exhibit H to Ordinance NS374, adopted by reference (§ 10.01.040.H); most public/semipublic pool provisions are deleted and replaced with a reference to Arizona Administrative Code Title 18, Chapter 5, Article 2 and A.R.S. § 36-1681.
• 2018 International Existing Building Code (IEBC), as amended in Exhibit I to Ordinance NS374, adopted by reference (§ 10.01.040.I).
• 1997 Uniform Code for the Abatement of Dangerous Buildings (UCADB), as amended (no amendments) in Exhibit J to Ordinance NS374, adopted by reference (§ 10.01.040.J), published by the International Conference of Building Officials (ICBO).
• Uniform Standard Details and Specifications for Public Works Construction, developed by the Maricopa Association of Governments (MAG) and adopted by reference as the City's own public-works construction standard, with 'City of Willcox' substituted for 'Maricopa Association of Governments'/'Maricopa County' throughout (Willcox Municipal Code § 10.01.060; Ord. NS289 § 2, 2008; made public record by Resolution No. 2008-74).
• Manufactured homes, mobile homes, and factory-built buildings: construction/installation standards are regulated directly by the State of Arizona (Department of Fire, Building and Life Safety / Office of Manufactured Housing, A.R.S. § 41-4001 et seq.); the City separately charges a $400.00 Manufactured Homes fee and $90.00 Factory Built Buildings fee under its own Development Services Fee Schedule (Table, Other Fees), confirming the City issues its own local placement permit layered on the state process. Source: City of Willcox Development Services Fee Schedule (Resolution No. 2006-10 / 2008-75), Section F.
• Whether a Registered Design Professional (architect/engineer per A.R.S. Title 32) is required to prepare and stamp plans is governed entirely by state law, not city ordinance — the City has published a dedicated 'Requirement for Architect or Engineer' guidance document explaining the A.R.S. § 32-144 factors (building size ≤3,000 sq ft, occupant load <21, structural spans ≤20 ft) and giving worked examples; residential (detached single-family) construction is exempt from the RDP requirement under A.R.S. § 32-144(A)(3). Source: City of Willcox 'When is a Registered (Licensed) Architect or Engineer Required for a Building Project' (Community Development Department / Building Safety Division).

Permit types & fees

• Residential Building Permit (New Construction)

  Required for new single-family and two-family dwelling construction in the City of Willcox. Reviewed against the 2018 IRC and City of Willcox amendments (Exhibit B to Ordinance NS374), effective for applications submitted on/after April 1, 2026. Applications are submitted via the City's online iWorQ Building Permit Application portal or in person at City Hall/Visitor Center.

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• Residential Addition / Remodel Permit

  Required for room additions, remodels, and structural alterations to existing one- and two-family dwellings in Willcox that exceed the City's minor-work exemptions. Reviewed against the 2018 IRC as adopted and amended by the City of Willcox (Exhibit B to Ordinance NS374).

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• Electrical Permit

  Required for electrical installation, alteration, or repair work in Willcox, governed by the 2017 National Electrical Code (NEC) as adopted and amended by the City (Exhibit E to Ordinance NS374). Willcox has an unusual amendment explicitly permitting Type UF cable in mortar joints of adobe construction, reflecting the region's building stock.

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• Plumbing Permit

  Required for plumbing installation, alteration, or repair work in Willcox, governed by the 2018 International Plumbing Code (IPC) as adopted and amended by the City (Exhibit D to Ordinance NS374), including the City's inserted Water Conservation Code appendix.

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• Mechanical / HVAC Permit

  Required for heating, ventilation, and air conditioning installations in Willcox, governed by the 2018 International Mechanical Code (IMC) as adopted and amended by the City (Exhibit C to Ordinance NS374). The City mandates residential cooling capability and exempts several common like-for-like HVAC replacements from permitting.

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• Re-Roofing Permit

  Willcox has an unusually broad no-permit exemption for re-roofing: unlike most Arizona jurisdictions, the City exempts re-roofing of existing buildings with similar materials 'regardless of value' under its IBC amendment, and separately exempts residential re-roofing with no structural changes under its IRC amendment.

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• Residential Rooftop Solar Photovoltaic (PV) Permit

  Required for installation of rooftop residential solar photovoltaic systems in Willcox. The City's own published Building Plan Guidelines give small residential rooftop solar PV systems (10 kW or less) a fast-track 4-business-day review — the City's fastest published review timeline outside of counter-issued miscellaneous permits.

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• Demolition Permit

  Required for demolition of any structure in Willcox, billed at an hourly rate rather than the standard valuation table.

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• Manufactured Home / Factory-Built Building Installation Permit

  Required for placement of manufactured/mobile homes and factory-built buildings within Willcox city limits, in addition to the separate State of Arizona-mandated installation permit. The City charges its own flat local fee layered on top of the state process.

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• EV Charger Installation Permit

  Required for installation of an electric vehicle charging station (Level 2 or DC fast charger) in Willcox. Governed by the 2017 NEC as adopted and amended by the City (Exhibit E to Ordinance NS374). EV charging has no dedicated permit category or fee line in the City's Development Services Fee Schedule — it is billed as a standard Electrical Permit (see electrical-permit entry), the same treatment already documented for this file's solar-pv-permit entry.

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