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Mechanical / HVAC Permit (Trade Permit) in Tucson, Arizona

Required for heating, ventilation, and air conditioning installations in Tucson, governed by the 2024 International Mechanical Code (IMC) and International Fuel Gas Code (IFGC) as adopted by the City of Tucson (effective 1/1/2026). Issued as a Trade Permit, priced per item.

Verified 2026-07-03 · Source

When you need this permit

  • Mechanical permit (Trade Permit) required for central HVAC installation/replacement, mini-split (distributed) HVAC systems, ductwork installation/replacement/modification, and non-portable evaporative coolers in most cases
  • Governed by the 2024 IMC and IFGC as adopted by the City of Tucson
  • Load and sizing calculations are required for BOTH new and replacement HVAC equipment
  • Evaporative cooler replaced with the same type/size does NOT require a permit unless the property is in a Historic Preservation Zone or Neighborhood Preservation Zone
  • Portable heating/cooling equipment plugged into a standard outlet with its original factory cord does NOT require a permit
  • Trade Permit categories include Air Conditioner/Heater Repair/Replace (max 2 units per item) and Fixed Appliance
  • Falls under the Express Lane (Residential Trade: 24-hour performance goal)

Required documents

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Fee schedule

Trade Permit — first item (e.g., Air Conditioner/Heater Repair/Replace, max 2 units)City of Tucson FY27 Fee Schedule (Section 4-02.9.1); includes up to 1/2 hour of staff review and permit processing plus 2 inspections
$150.00
Trade Permit — each additional item beyond the firstCity of Tucson FY27 Fee Schedule (Section 4-02.9.2)
$50.00 per additional item
Digital Filing FeeCity of Tucson FY27 Fee Schedule (Section 4-01.5.1)
1% of the total fee, minimum $18.54

Review timeline

Plan reviewTucson’s published plan-review target
1–1 business days

How long did your Mechanical / HVAC Permit (Trade Permit) permit actually take in Tucson?

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

Inspection process

  1. 1

    Rough-In

    Ductwork and equipment rough-in before walls closed; gas piping pressure test before concealment

  2. 2

    Final

    Equipment operational and load/sizing calculations verified against installed unit; may be completed via Remote Video Inspection for most residential work

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

Tips

  • Load and sizing calculations are required even for a straight like-for-like HVAC replacement, not just new installations.
  • A same-type/same-size evaporative cooler swap is exempt from permitting UNLESS the property sits in a Historic Preservation Zone or Neighborhood Preservation Zone.
  • Air Conditioner/Heater Repair/Replace is billed as a single Trade Permit item covering up to 2 units.
  • Ductwork changes of any kind (layout, sizing, full replacement) always require a Trade Permit.

Frequently asked questions

Yes. PDSD requires load and sizing calculations for both new AND replacement HVAC equipment, not just new installations. Source: City of Tucson PDSD Residential Permits page.

In Tucson, the published Trade Permit — first item (e.g., Air Conditioner/Heater Repair/Replace, max 2 units) is: $150.00. Additional published fees: Trade Permit — each additional item beyond the first — $50.00 per additional item; Digital Filing Fee — 1% of the total fee, minimum $18.54. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Tucson's published plan-review target for a mechanical / hvac permit (trade permit) is 1–1 business days.

You'll need: Trade Permit Application. Depending on your project, Tucson may also ask for: Mechanical Upgrade Template. See the required-documents checklist on this page for details on each.

Tucson requires 2 inspection(s) for a mechanical / hvac permit (trade permit), in order: Rough-In, Final. Schedule each through City of Tucson Planning & Development Services Department (PDSD) ((520) 791-5550).

Apply through City of Tucson Planning & Development Services Department (PDSD) at Tucson Development Center, 201 N. Stone Avenue, 1st Floor, Tucson, AZ 85701. Phone: (520) 791-5550, email: PDSDinquiries@tucsonaz.gov. Office hours: Tucson Development Center, 201 N. Stone Avenue, 1st Floor: Mon.-Thur. 8 a.m.-4 p.m. (closed Fridays). Staff available by email/phone Mon.-Fri., 8 a.m.-4:30 p.m.. Official information: https://www.tucsonaz.gov/Departments/Planning-Development-Services.

Tucson, Arizona has adopted: Arizona has no mandatory statewide building code — code adoption is entirely a local (city/county) decision. The City of Tucson adopts its own model building codes, published by the International Code Council (ICC) and the National Fire Protection Association (NFPA), on a six-year cycle, with local amendments authorized by Ordinance #12171. Source: City of Tucson Planning & Development Services, Building Codes page (tucsonaz.gov/Departments/Planning-Development-Services/Codes/Building-Codes).; 2024 International Building Code (IBC) — effective January 1, 2026, as adopted by the City of Tucson with local amendments; 2024 International Residential Code (IRC) — effective January 1, 2026, as adopted by the City of Tucson with local amendments; 2024 International Existing Building Code (IEBC) — effective January 1, 2026; 2024 International Fuel Gas Code (IFGC) — effective January 1, 2026; 2024 International Mechanical Code (IMC) — effective January 1, 2026; 2024 International Plumbing Code (IPC) — effective January 1, 2026 (Tucson/Pima County use the International Plumbing Code, not the Uniform Plumbing Code); 2024 International Swimming Pool & Spa Code (ISPSC) — effective January 1, 2026; 2024 International Energy Conservation Code (IECC) — effective July 1, 2026 (the energy code follows the other 2024 model codes on a delayed effective date); 2023 National Electrical Code (NEC) — effective January 1, 2026; 2024 International Fire Code (IFC) — current adopted edition per City of Tucson Building Codes page; All permit applications and related submittals received on or after July 1, 2026 must comply with the 2024 International Codes and amendments as adopted by the City of Tucson and in effect as of that date, including the 2023 NEC where applicable. Applications submitted before July 1, 2026 continue to be reviewed under the code editions in effect at the time of submittal, unless approved by the Building Official. Source: City of Tucson Building Codes page.; Other adopted building regulations (updated less frequently than the six-year model code cycle): Arizona Administrative Code Title 18, Chapter 5 (Public and Semi-Public Swimming Pools); 2012 City of Tucson/Pima County Outdoor Lighting Code; ICC A117.1-2017 Accessible and Usable Buildings and Facilities (effective 1/1/26); Inclusive Home Design Ordinance. Source: City of Tucson Building Codes page.; Previously adopted (superseded) editions include the 2018 International Building/Residential/Mechanical/Plumbing/Fuel Gas/Existing Building/Swimming Pool & Spa Codes, 2017 NEC, and 2012-cycle International Codes with 2011 NEC. Source: City of Tucson Building Codes page.; Sustainability and related codes: City of Tucson Riparian Vegetation Preservation; Commercial Rainwater Harvesting (Engineering Code); EV Charging - Commercial and Multifamily (Zoning Code); Landfill Development Ordinance (Engineering Code); Native Plant Preservation Ordinance (Landscaping Code); Prohibition on Ornamental Turf (Zoning Code, UDC 7.6.4.D); WaterSense Plumbing Fixtures (Building Code). Source: City of Tucson Building Codes page.. Local amendments apply — see the Tucson overview page for the full list.

Sources & verification

Verified against official sources. Last reviewed 2026-07-03.

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

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Mechanical / HVAC Permit (Trade Permit) in other cities

Apache Junction, ArizonaAvondale, ArizonaBenson, ArizonaBisbee, ArizonaBuckeye, ArizonaBullhead City, ArizonaCarefree, ArizonaCasa Grande, Arizona

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