Residential Addition / Alteration Permit in Tucson, Arizona

Tucson requires a residential addition / alteration permit for: Building permit required for additions, remodels, and alterations affecting structural, fire, or life-safety elements, including porches, additions, and garages; Applicants must provide a signed contract identifying the value of work performed as the fee basis; if unavailable, valuation is assigned per the ICC Valuation Table based on the IEBC alteration level; Level 1 Alteration (5% of standard valuation): removal and replacement of existing materials, equipment, or fixtures; Level 2 Alteration (15% of standard valuation): reconfiguration of space, addition/elimination of any door or window, reconfiguration/extension of any system, or installation of additional equipment; Level 3 Alteration (30% of standard valuation): alterations where the work area exceeds 50% of the building area; A site plan showing lot lines, setbacks, and existing/proposed structures is required; Interior finish work (paint, tile, carpet, cabinets, countertops) that does not affect plumbing or electrical systems does NOT require a permit; Falls under the Standard Lane permit review track (20-business-day performance goal). If your project isn't listed, confirm with City of Tucson Planning & Development Services Department (PDSD) at (520) 791-5550 before starting work.

PDSD applies a percentage of the standard ICC valuation based on the IEBC alteration level: 5% for Level 1 (like-for-like replacement), 15% for Level 2 (reconfiguration, new doors/windows, added equipment), or 30% for Level 3 (work area over 50% of the building). Applicants should provide a signed contract stating project value as the fee basis. Source: City of Tucson FY27 Fee Schedule, Section 4-02.8.

Tucson's published plan-review target for a residential addition / alteration permit is 20–20 business days.

You'll need: Residential Building Permit Application Checklist - Addition/Alteration; Construction Drawings. Depending on your project, Tucson may also ask for: Residential Building Permit Application Checklist - Addition/Alteration (Interior Only); Signed Contractor/Client Contract. See the required-documents checklist on this page for details on each.

Tucson requires 3 inspection(s) for a residential addition / alteration permit, in order: Footing/Foundation, Framing, 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.