Mechanical / HVAC Permit in Avondale, Arizona

Avondale requires a mechanical / hvac permit for: Mechanical permit required for installation, replacement, or relocation of HVAC equipment, furnaces, and ventilation systems not covered by the code's portable-appliance exemptions; Governed by the 2024 IMC as adopted by the City of Avondale; Interior occupied spaces must be capable of maintaining minimum 68°F and maximum 82°F (AC) or 88°F (evaporative cooling) at 3 ft above the floor (IBC 1203.1, Amended); Manual J, D, and S calculations and duct layout (size, insulation R-value, register sizes, CFM) required per the Residential Submittal Checklist's Mechanical section; Apply via the Avondale Citizen Portal (Accela Citizen Access), Application Type 'Residential' or 'Commercial', Purpose of Work 'Mechanical'. If your project isn't listed, confirm with City of Avondale Development Services Department — Building Services Division at 623-333-4000 before starting work.

$90.00 flat, per the City of Avondale FY2026 Rates and Fees Schedule (Mechanical/Plumbing/Electrical category), plus the $102.00 Application Processing Fee.

Avondale's published plan-review target for a mechanical / hvac permit is 16–24 business days.

You'll need: Building/Mechanical Permit Application; Manual J/D/S Calculations and Duct Layout. See the required-documents checklist on this page for details on each.

Avondale requires 2 inspection(s) for a mechanical / hvac permit, in order: Rough Mechanical (HVAC), Final Mechanical HVAC. Schedule each through City of Avondale Development Services Department — Building Services Division (623-333-4000).

Apply through City of Avondale Development Services Department — Building Services Division at 11465 W. Civic Center Drive, Avondale, AZ 85323. Phone: 623-333-4000, email: buildingservices@avondaleaz.gov. Office hours: 7:00 AM – 6:00 PM (Building Services Division, per the City's Building Services Division page); City Hall / Development Services counter hours are Monday–Thursday 7:00 AM – 6:00 PM per the City's Contact Us footer (City Hall operates a compressed 4-day, 10-hour workweek). Applications are submitted electronically via the Avondale Citizen Portal (Accela Citizen Access). Building Official: Benjamin Carr (bcarr@avondaleaz.gov), per the 2025 Arizona Building Officials (AZBO) Directory.. Official information: https://avondaleaz.gov/government/departments/development-services/building-division/.

Avondale, Arizona has adopted: Arizona has NO statewide mandatory building code floor for general construction — code adoption is a per-city/county authority under state enabling statutes (e.g., A.R.S. Title 9 for municipalities). The City of Avondale independently adopts and administers its own construction codes through its Development Services Department / Building Services Division; it does not defer permitting to Maricopa County. Source: City of Avondale Building Services Division page (avondaleaz.gov/government/departments/development-services/building-division/).; 2024 International Building Code (IBC), as published by the International Code Council, adopted by reference with City of Avondale amendments. Effective January 1, 2026 (per the City's 'Current Adopted Building Codes (effective January 1, 2026)' list). Source: City of Avondale Building Services Division page; City of Avondale Building Code Adoption ordinance document ('Building-Code-Adoption-Final.pdf').; 2024 International Residential Code (IRC), adopted by reference with City of Avondale amendments, effective January 1, 2026. Source: City of Avondale Building Services Division page; City of Avondale Building Code Adoption ordinance document.; 2024 International Existing Building Code (IEBC), adopted by reference with City of Avondale amendments, effective January 1, 2026. Source: City of Avondale Building Services Division page.; 2023 National Electrical Code (NEC), as published by the National Fire Protection Association, adopted with City of Avondale amendments (note: electrical code cycle is one edition behind the 2024 ICC set), effective January 1, 2026. Source: City of Avondale Building Services Division page; City of Avondale Building Code Adoption ordinance document (Avondale Amendments to the 2023 National Electrical Code).; 2024 International Mechanical Code (IMC), adopted by reference with City of Avondale amendments, effective January 1, 2026. Source: City of Avondale Building Services Division page.; 2024 International Plumbing Code (IPC), adopted by reference with City of Avondale amendments, effective January 1, 2026, including a burial-depth amendment to G2415.12/IFGC 404.12 and added stub-out/push-to-connect-valve provisions (P2605.1.1, P2605.1.2). Source: City of Avondale Building Code Adoption ordinance document.; 2024 International Fuel Gas Code (IFGC), adopted by reference with City of Avondale amendments, effective January 1, 2026. Source: City of Avondale Building Services Division page.; 2024 International Energy Conservation Code (IECC), adopted by reference with City of Avondale amendments, effective January 1, 2026 (Manual J design criteria: elevation 1,101 ft, latitude 34°, outdoor summer design dry-bulb 108°F, outdoor winter design dry-bulb 33°F). Source: City of Avondale Building Services Division page; City of Avondale Building Code Adoption ordinance document.; 2024 International Property Maintenance Code (IPMC), adopted by reference, effective January 1, 2026. Source: City of Avondale Building Services Division page.; 2024 International Swimming Pool and Spa Code (ISPSC), adopted by reference with City of Avondale amendments (including an amended barrier-height provision requiring a minimum 60-inch/5-foot barrier height, up from the model code's 48 inches), effective January 1, 2026. Source: City of Avondale Building Services Division page; City of Avondale Building Code Adoption ordinance document (Avondale Amendments to the 2024 ISPSC, Section 305.2.1); City of Avondale Swimming Pool Requirements handout (rev. 10.26.2023).; All work must be performed by a contractor licensed with the Arizona Registrar of Contractors (ROC), unless the property owner qualifies as an owner-builder under A.R.S. § 32-1121 (Building Permit Application, Standard Conditions and Applicant Certification, rev. 05.06.2026). Source: City of Avondale Building Permit Application.. Local amendments apply — see the Avondale overview page for the full list.

Avondale's amended IBC Section 1203.1 requires interior occupied spaces to be capable of maintaining a minimum of 68°F and a maximum of 82°F if cooled by air conditioning, or 88°F if cooled only by an evaporative cooler — so evaporative cooling alone can satisfy the requirement, unlike jurisdictions that mandate true refrigerated AC.