Residential Addition / Remodel / Alteration Permit in Flagstaff, Arizona

A Building Permit is required for decks over 30 inches above finished grade, over 200 sq ft, or attached to the main structure. Smaller, detached decks can use the $80 Minor Improvement Permit (Zoning) instead. Source: City of Flagstaff Minor Improvement Permit Application checklist.

In Flagstaff, the published Building Permit Fee (valuation-based, ICC February 2017 BVD methodology) is: Gross Area x Square Foot Construction Cost x 0.01 permit fee multiplier, plus 65% plan review fee. These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

Flagstaff's published plan-review target for a residential addition / remodel / alteration permit is 20–35 business days.

You'll need: Residential Building Permit Application (PDF); Construction Drawings. See the required-documents checklist on this page for details on each.

Flagstaff requires 3 inspection(s) for a residential addition / remodel / alteration permit, in order: Footing/Foundation, Framing, Final. Schedule each through City of Flagstaff Building Safety Section (Planning & Development Services, Community Development Division) (928-213-2000).

Apply through City of Flagstaff Building Safety Section (Planning & Development Services, Community Development Division) at 211 W Aspen Avenue, Flagstaff, AZ 86001. Phone: 928-213-2000, email: BuildingPermits@flagstaffaz.gov. Office hours: City Hall is open 8:00 am to 4:30 pm. Commercial permit attachments too large for the portal: Commercial.BuildingPermits@flagstaffaz.gov. Inter-departmental submittals: FrontCounter@flagstaffaz.gov.. Official information: https://www.flagstaff.az.gov/494/Building-Safety.

Flagstaff, Arizona has adopted: Arizona has no mandatory statewide building code edition — cities and counties each adopt and amend their own codes (per Arizona Revised Statutes framework for municipal building regulation; no state building-code-adoption agency parallel to Montana's DLI exists). The City of Flagstaff independently administers its own Building Safety program within city limits, separate from Coconino County's building department, which handles unincorporated county areas. Source: City of Flagstaff Building Safety page (flagstaff.az.gov/494/Building-Safety) and Building Permits page.; 2018 International Building Code (IBC) — adopted by City of Flagstaff Resolution 2019-26 and Ordinance 2019-16 on June 18, 2019, effective July 19, 2019 (the '2018 Suite of Codes'). Source: City of Flagstaff 2019 Adopted Building Codes (PDF); 2018 International Residential Code (IRC) — adopted per Resolution 2019-26 / Ordinance 2019-16, effective July 19, 2019; 2018 International Existing Building Code (IEBC) — adopted per Resolution 2019-26 / Ordinance 2019-16, effective July 19, 2019; 2018 International Mechanical Code (IMC) — adopted per Resolution 2019-26 / Ordinance 2019-16, effective July 19, 2019; 2018 International Plumbing Code (IPC) — adopted per Resolution 2019-26 / Ordinance 2019-16, effective July 19, 2019 (Arizona/Flagstaff uses the IPC, not the Uniform Plumbing Code); 2018 International Fuel Gas Code (IFGC) — adopted per Resolution 2019-26 / Ordinance 2019-16, effective July 19, 2019; 2018 International Energy Conservation Code (IECC) — adopted per Resolution 2019-26 / Ordinance 2019-16, effective July 19, 2019; 2018 International Swimming Pool and Spa Code (ISPSC) — adopted per Resolution 2019-26 / Ordinance 2019-16, effective July 19, 2019; 2018 International Solar Energy Provisions (ISEP) — adopted per Resolution 2019-26 / Ordinance 2019-16, effective July 19, 2019; a compilation of solar energy provisions from the IBC, IRC, IECC, IMC, IPC, IFC, and ISPSC; 2017 NFPA 70 / National Electrical Code (NEC) — adopted per Resolution 2019-26 / Ordinance 2019-16, effective July 19, 2019; ICC A117.1-2017, Accessible and Usable Buildings and Facilities — adopted per Resolution 2019-26 / Ordinance 2019-16; 1997 Uniform Housing Code, 1997 Uniform Administrative Code, and 1997 Uniform Code for the Abatement of Dangerous Buildings (ICBO) — retained as adopted codes per Flagstaff City Code Title 4, Chapter 4-01; All codes amended locally by Flagstaff City Code Title 4, Building Regulations (Chapters 4-01 through 4-11), on file with the City Clerk. Source: Flagstaff City Code Title 4 Building Regulations amendments document (2019 Amendments to the Adopted Codes, PDF, rev. 05/14/2019); Statewide overlay: Arizona Revised Statutes Section 9-468 sets mandatory statewide standards for solar photovoltaic and solar water heating construction permits (limits on required plan documentation, prohibits requiring a PE stamp absent a written justification, and caps solar permit fees at actual cost of issuance) — binding on the City of Flagstaff as a municipality. Source: azleg.gov ARS 9-468; Arizona Revised Statutes Sections 9-835 and 9-836 set statutory residential building-permit plan-review timeframes (Administrative Completeness Review and Substantive Review stages) that the City of Flagstaff's published review timeframes implement. Source: City of Flagstaff Residential Building Permits Plan Review Process and Timeframes (PDF). Local amendments apply — see the Flagstaff overview page for the full list.