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Commercial Building Permit (including Tenant Improvements) in Winslow, Arizona

Required for new commercial construction, and for commercial alterations, additions, repairs, and changes of occupancy or use (including tenant improvements) in the City of Winslow, reviewed against the 2018 International Building Code and 2018 International Existing Building Code as adopted and amended by the City (Winslow Municipal Code § 15.04.040(A)). Winslow uses a single Building Permit application for both residential and commercial work, but the commercial track is genuinely distinct in its published fee schedule: a dedicated Commercial Plan Review Fee (Ordinance No. 637, Schedule 3, Section 3-7 — $250 deposit vs. $100 residential), commercial fire-code plan review and inspection fees (Section 3-9), and a licensed-contractor requirement for all commercial and multi-family work stated on the City's Community Development page. Tenant improvement is NOT a separate permit type — see tips.

Verified 2026-08-01 · Source

When you need this permit

  • Building permit required to construct, enlarge, alter, repair, move, demolish, or change the occupancy or use of a commercial building or structure (Winslow Municipal Code § 15.04.040(A), 2018 IBC Section 105.1; restated on the City's Permit FAQs page)
  • Work in commercial and multi-family housing will require a licensed contractor — stated verbatim on the City of Winslow Community Development page Contractor
  • Construction documents must be prepared and sealed by an Arizona Registered Design Professional when total building square footage exceeds 3,000 sq ft, total occupancy exceeds 20 persons, or any required structural member exceeds 14 feet in length (Winslow Municipal Code § 15.04.040(A), IBC [A] 107.1 as amended)
  • Application must include a completed Building Permit Application and three (3) complete sets of scaled plans and specifications (site plan showing all buildings and distances from property lines, foundation detail, floor plan, framing detail/cross sections, roof detail, truss specifications and layout, electrical/plumbing/mechanical plans, and elevations), plus a copy of the completed septic permit where applicable
  • Plans must comply with the City of Winslow Climatic and Geographic Design Criteria (30 psf ground snow load; 115 mph ultimate design wind speed, Exposure C; 18-inch frost depth; Seismic Zone B; 1,500 psf assumed soil bearing unless verified otherwise)
  • Alterations, repairs, and changes of occupancy in existing commercial buildings are governed by the 2018 International Existing Building Code, adopted by reference (Winslow Municipal Code § 15.04.040(A), IBC 101.4.10); fire prevention/suppression/alarm matters reference the 2018 International Fire Code (IBC 101.4.5)
  • Historic-district gate: the City Inspector shall NOT issue a building, grading, or demolition permit for new construction, any alteration affecting the exterior appearance of an existing building, sign installation/alteration, or parking lot construction/enlargement within a historic district (Historic Overlay Zone) or on a property containing a historic building, without plan approval by the Development Review Committee and the Historic Preservation Commission (Winslow Municipal Code § 17.96.040(A)); design must follow the Secretary of the Interior's Standards for Rehabilitation, and interior-only work and ordinary maintenance/in-kind repair are excepted (§ 17.96.050(E))
  • All electrical equipment rated 1,000 amps or more must pass a certified hi-pot (high-potential voltage) test performed in the presence of a City Building Inspector by a testing firm approved by the Building Official (Winslow Municipal Code § 15.04.040(F), NEC 110.7 as amended)
  • No certificate of occupancy will be issued to any water-consuming addition or dwelling until all water tap fees and the plant investment fee have been paid (City of Winslow Ordinance No. 637, Schedule 5, Section 5-13)

Required documents

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Fee schedule

Building Permit FeeCity of Winslow Ordinance No. 637, Schedule of Rates, Fees and Charges (July 2026), Schedule 3, Section 3-4 — the same valuation-based table applies to residential and commercial building permits; no separate commercial valuation table is published
Calculated per Table 1-A of the 1997 Uniform Building Code, plus 10%
Issuance FeeCity of Winslow Ordinance No. 637, Schedule 3, Section 3-4
$40.00
Commercial Plan Review FeeCity of Winslow Ordinance No. 637, Schedule 3, Section 3-7 (Commercial Plan Review Fee) — a dedicated commercial line, distinct from the $100 Residential Plan Review Fee deposit in Section 3-6
$250.00 due at time of submission of commercial building plans (applied to the final commercial plan review fee); total fee for up to three plan review sessions is 65% of the total building permit fee (or other permit fee), or the actual city and consultant cost, whichever is greater
Fire Code Plan Review and Inspection FeesCity of Winslow Ordinance No. 637, Schedule 3, Section 3-9 (Fire Code Plan Reviews and Inspection Fees) — the modification lines explicitly say 'including TI', the fee schedule's only mention of tenant improvements. Violation fees also published: $150.00 for no approved plans on site or failure to attend a scheduled inspection (30-minute wait), $150.00 for failure to install per approved plans, $250.00 for failure to pre-test fire protection systems for acceptance
New commercial fire alarm/detection system: $350.00 (under 5,000 sq ft) or $400.00 + $0.005/sq ft (5,001 sq ft and over); new commercial automatic fire sprinkler system: $350.00 (under 5,000 sq ft) or $400.00 + $0.005/sq ft (5,001+ sq ft); modification (including TI): $100.00 (1-6 devices / 1-50 sprinklers) or $150.00 (7+ devices / 51+ sprinklers); commercial cooking hood (single system): $250.00; alternative fire-extinguishing system (foam/CO2/clean agent/chemical): $300.00; fire pump (new or modified): $450.00; spray booth: $175.00 (pre-manufactured) or $350.00 (non-pre-manufactured); LPG tank: $100.00 (250-500 gal) or $150.00 (501+ gal); high-piled combustible storage plan review: $100.00
Permit Extension / ReinstatementCity of Winslow Ordinance No. 637, Schedule 3, Section 3-4
Six-month extension of expired permit: 10% of original fee (first request), 30% of original fee (second request); building permit reinstatement fee: 50% of permit fee (not eligible if a new code year has been adopted)
Building Without a Permit PenaltyCity of Winslow Ordinance No. 637, Schedule 3, Section 3-4; consistent with Winslow Municipal Code § 15.04.040(A) IBC [A] 109.4
2x permit fee (1st offense); 3x (2nd offense); 5x (3rd and subsequent offenses), plus other fines/penalties prescribed by code or law and the City's actual cost of investigation
Development Review Board (historic-district projects only)City of Winslow Ordinance No. 637, Schedule 10, Section 10-1 (Zoning Fees) — applies when a project requires Development Review Committee/Historic Preservation Commission approval under Winslow Municipal Code § 17.96.040
$600.00 per meeting up to 1 hour, plus $100.00 per additional hour

Review timeline

Plan reviewWinslow’s published plan-review target
15–15 business days

How long did your Commercial Building Permit (including Tenant Improvements) permit actually take in Winslow?

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

  2. 2

    Framing

    Structural framing and connections per the 2018 IBC and City design criteria (30 psf snow, 115 mph wind Exposure C, 18-inch frost depth)

  3. 3

    Rough Electrical/Plumbing/Mechanical

    Rough-in inspections before wall closure; commercial wiring (outside R-3/R-4 and accessory U/S occupancies) must be in conduit or approved cable types per the City's NEC amendments

  4. 4

    Fire Protection Systems Acceptance

    Fire alarm/sprinkler and other fire protection systems must be pre-tested before the acceptance test — the City publishes a $250.00 violation fee for failure to pre-test fire protection systems for acceptance (Ordinance No. 637, Schedule 3, Section 3-9)

  5. 5

    Final

    All work complete per approved plans; hi-pot test certificate on file for any electrical equipment rated 1,000 amps or more. All inspections must be called in at least 24 hours in advance — no same-day inspections except in an emergency, per the City's published guidance

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

Tips

  • Tenant improvement is NOT a distinct permit type in Winslow. The City publishes no separate TI permit, application, fee line, or timeline — a TI is processed as a standard (commercial) Building Permit for alteration/change-of-occupancy work under the 2018 IBC/IEBC, with fees from the same 1997 UBC Table 1-A valuation table plus the $250-deposit Commercial Plan Review Fee. The only place the fee schedule mentions TI at all is inside the fire-code fee lines — 'Modification (including TI)' of fire alarm ($100/$150) and sprinkler ($100/$150) systems in Schedule 3, Section 3-9 — confirming TI work is contemplated but billed under the general commercial building-permit structure.
  • The commercial plan review deposit is $250.00 (vs. $100.00 residential), but both tracks end at the same total: 65% of the building permit fee for up to three plan review sessions, or actual city and consultant cost, whichever is greater (Ordinance No. 637, Schedule 3, Sections 3-6 and 3-7).
  • Route 66 / historic downtown caution: Winslow's zoning code (Chapter 17.96) superimposes Historic Overlay Zones on underlying zones — the code's own example is 'C-66 (HOZ)'. Inside an HOZ or on a property containing a historic building, the City Inspector cannot issue a building, grading, or demolition permit for exterior-affecting work, signs, or parking lots until the Development Review Committee AND Historic Preservation Commission approve the plans against the Secretary of the Interior's Standards for Rehabilitation. Interior-only tenant improvements are outside this gate (it applies to work affecting exterior appearance), but storefront, facade, and sign changes are squarely inside it — and the Development Review Board costs $600 per meeting (Schedule 10). Verify whether a parcel carries the (HOZ) designation with the Planning & Zoning Officer (928-289-1476) before submitting.
  • Work in commercial and multi-family housing requires a licensed contractor — the City states this directly on its Community Development page (single-family work only 'may' require one). Contractor
  • No A.R.S. § 9-835 licensing-time-frames document could be found on winslowaz.gov as of 2026-08-01. The City's only published review-time figure is the general 'approximately 15 working days' plan-review statement on the Community Development page. There is no verifiable online source for a commercial-specific or administrative-completeness/substantive split — confirm current timing with the Community Development Department at 928-289-1476 or comdevelopment@winslowaz.gov.
  • A certificate of occupancy will not be issued until all water tap fees and the plant investment fee have been paid (Ordinance No. 637, Schedule 5, Section 5-13) — budget City water/sewer systems-development charges into commercial project timelines.
  • Note on fee-schedule section numbers: in the current July 2026 edition of Ordinance No. 637, Schedule 3 runs 3-1 Mechanical, 3-2 Electrical, 3-3 Plumbing, 3-4 Building, 3-5 Miscellaneous, 3-6 Residential Plan Review, 3-7 Commercial Plan Review, 3-8 Mobile/Manufactured Home and Factory Built Building, 3-9 Fire Code Plan Reviews — cited here as published in that edition.

Frequently asked questions

Winslow requires a commercial building permit (including tenant improvements) for: Building permit required to construct, enlarge, alter, repair, move, demolish, or change the occupancy or use of a commercial building or structure (Winslow Municipal Code § 15.04.040(A), 2018 IBC Section 105.1; restated on the City's Permit FAQs page); Work in commercial and multi-family housing will require a licensed contractor — stated verbatim on the City of Winslow Community Development page; Construction documents must be prepared and sealed by an Arizona Registered Design Professional when total building square footage exceeds 3,000 sq ft, total occupancy exceeds 20 persons, or any required structural member exceeds 14 feet in length (Winslow Municipal Code § 15.04.040(A), IBC [A] 107.1 as amended); Application must include a completed Building Permit Application and three (3) complete sets of scaled plans and specifications (site plan showing all buildings and distances from property lines, foundation detail, floor plan, framing detail/cross sections, roof detail, truss specifications and layout, electrical/plumbing/mechanical plans, and elevations), plus a copy of the completed septic permit where applicable; Plans must comply with the City of Winslow Climatic and Geographic Design Criteria (30 psf ground snow load; 115 mph ultimate design wind speed, Exposure C; 18-inch frost depth; Seismic Zone B; 1,500 psf assumed soil bearing unless verified otherwise); Alterations, repairs, and changes of occupancy in existing commercial buildings are governed by the 2018 International Existing Building Code, adopted by reference (Winslow Municipal Code § 15.04.040(A), IBC 101.4.10); fire prevention/suppression/alarm matters reference the 2018 International Fire Code (IBC 101.4.5); Historic-district gate: the City Inspector shall NOT issue a building, grading, or demolition permit for new construction, any alteration affecting the exterior appearance of an existing building, sign installation/alteration, or parking lot construction/enlargement within a historic district (Historic Overlay Zone) or on a property containing a historic building, without plan approval by the Development Review Committee and the Historic Preservation Commission (Winslow Municipal Code § 17.96.040(A)); design must follow the Secretary of the Interior's Standards for Rehabilitation, and interior-only work and ordinary maintenance/in-kind repair are excepted (§ 17.96.050(E)); All electrical equipment rated 1,000 amps or more must pass a certified hi-pot (high-potential voltage) test performed in the presence of a City Building Inspector by a testing firm approved by the Building Official (Winslow Municipal Code § 15.04.040(F), NEC 110.7 as amended); No certificate of occupancy will be issued to any water-consuming addition or dwelling until all water tap fees and the plant investment fee have been paid (City of Winslow Ordinance No. 637, Schedule 5, Section 5-13). If your project isn't listed, confirm with City of Winslow Community Development Department at 928-289-1476 before starting work.

In Winslow, the published Building Permit Fee is: Calculated per Table 1-A of the 1997 Uniform Building Code, plus 10%. Additional published fees: Issuance Fee — $40.00; Commercial Plan Review Fee — $250.00 due at time of submission of commercial building plans (applied to the final commercial plan review fee); total fee for up to three plan review sessions is 65% of the total building permit fee (or other permit fee), or the actual city and consultant cost, whichever is greater; Fire Code Plan Review and Inspection Fees — New commercial fire alarm/detection system: $350.00 (under 5,000 sq ft) or $400.00 + $0.005/sq ft (5,001 sq ft and over); new commercial automatic fire sprinkler system: $350.00 (under 5,000 sq ft) or $400.00 + $0.005/sq ft (5,001+ sq ft); modification (including TI): $100.00 (1-6 devices / 1-50 sprinklers) or $150.00 (7+ devices / 51+ sprinklers); commercial cooking hood (single system): $250.00; alternative fire-extinguishing system (foam/CO2/clean agent/chemical): $300.00; fire pump (new or modified): $450.00; spray booth: $175.00 (pre-manufactured) or $350.00 (non-pre-manufactured); LPG tank: $100.00 (250-500 gal) or $150.00 (501+ gal); high-piled combustible storage plan review: $100.00; Permit Extension / Reinstatement — Six-month extension of expired permit: 10% of original fee (first request), 30% of original fee (second request); building permit reinstatement fee: 50% of permit fee (not eligible if a new code year has been adopted); Building Without a Permit Penalty — 2x permit fee (1st offense); 3x (2nd offense); 5x (3rd and subsequent offenses), plus other fines/penalties prescribed by code or law and the City's actual cost of investigation; Development Review Board (historic-district projects only) — $600.00 per meeting up to 1 hour, plus $100.00 per additional hour. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Winslow's published plan-review target for a commercial building permit (including tenant improvements) is 15–15 business days.

You'll need: Building Permit Application; Site Plan; Construction Drawings (3 complete sets). Depending on your project, Winslow may also ask for: Fire Protection System Plans; Historic District Development Review submittal. See the required-documents checklist on this page for details on each.

Apply through City of Winslow Community Development Department at 102 E. Third Street, Winslow, AZ 86047 (2025 AZBO Directory lists the department's own address as 21 Williamson Avenue, Winslow, AZ 86047; the City's live website header lists City Hall at 102 E. Third Street — both are cited here as the City has not published a single reconciled address). Phone: 928-289-1476, email: comdevelopment@winslowaz.gov. Office hours: Not separately published by the Community Development Department; general City Hall contact is Monday-Friday per the City's main Contact page (102 E. Third Street, phone 928-289-2422, fax 928-289-3742). Building-permit-specific questions are directed to 928-289-1476 or comdevelopment@winslowaz.gov, per the City's Community Development page.. Official information: https://www.winslowaz.gov/page/community-development.

No. The City of Winslow publishes no distinct tenant-improvement permit type, application, fee line, or timeline. TI work is permitted as a commercial Building Permit (alteration/change of occupancy under the 2018 IBC and 2018 IEBC as adopted), with the fee calculated per the 1997 UBC Table 1-A valuation plus 10%, a $40 issuance fee, and the $250-deposit Commercial Plan Review Fee. The fee schedule's only TI reference is in the fire-code fees: 'Modification (including TI)' of fire alarm or sprinkler systems runs $100.00-$150.00 (Ordinance No. 637, Schedule 3, Section 3-9).

Commercial plans carry a dedicated Commercial Plan Review Fee: $250.00 due at submission (vs. $100.00 residential), applied to a final plan review fee of 65% of the total building permit fee for up to three review sessions, or the actual city and consultant cost, whichever is greater (Ordinance No. 637, Schedule 3, Section 3-7). Commercial and multi-family work also requires a licensed contractor, per the City's Community Development page.

If the property is in a Historic Overlay Zone or contains a historic building, yes — Winslow Municipal Code § 17.96.040(A) bars the City Inspector from issuing a building, grading, or demolition permit for exterior-affecting work, sign installation/alteration, or parking-lot construction until the Development Review Committee and Historic Preservation Commission approve the plans. The Development Review Committee hearing must be held within 10 days of a complete application, and the Development Review Board fee is $600 per meeting up to 1 hour (Ordinance No. 637, Schedule 10). Ordinary maintenance and in-kind repair are exempt.

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

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