Residential Building Permit (New Construction, Addition, Remodel) in Unincorporated Yuma County, Arizona

Only if the Building Official values the addition or structure at $1,000 or more. Yuma County adopted the A.R.S. § 11-321 threshold requiring a permit for any construction or addition exceeding $1,000 in value; below that threshold, no building permit is required (though other reviews, such as zoning or floodplain, may still apply). Source: Yuma County Department of Development Services (yumacountyaz.gov/home/showdocument?id=21906); A.R.S. § 11-321.

In Unincorporated Yuma County, the published Building Permit Fee (valuation-based, Table 1-A of the locally amended Uniform Building Code) is: $310.00 (as published in the current Residential Permit Guide's Fee Schedules table; underlying valuation-based Table 1-A brackets are published as Attachment #3 to the county's Fee Schedule document but were not separately rendered as line-item dollar brackets during this review). Additional published fees: Building Plan Review Fee — 65% of the building permit fee, per set of plan review; Grading Fee — $135.00; Floodplain Use Permit Fee — Single Family Dwelling Unit — $135.00; Conventional Sewage/Septic Plan Review Fee (Residential, single unit) — $180.00 (owner-builder under 3,000 GPD: $250.00); Alternative Sewage System Plan Review Fee (Residential — Wisconsin Mound, Evapotranspiration Bed) — $450.00; Water Well Permit Review Fee — $150.00 (plus $100.00 paid separately to the Arizona Department of Water Resources, ADWR); Exempt Permit (Building Code Exempt / Agriculture Exempt) — $15.00 (Building Code Exempt) / $55.00 (Agriculture Exempt). These are the jurisdiction's own published figures — see the fee schedule table and source citations on this page.

The county's Residential Project Information Guide publishes three tiers: Small Project Reviews at 22 business days, Single Review at 35 business days, and Multiple Reviews (the most common track, spanning Building Safety plus Engineering/Flood Control/Environmental Programs) at 40 business days. Source: https://www.yumacountyaz.gov/home/showpublisheddocument/46813/637614427674300000

You'll need: Residential Project Information Guide & Application Instructions; Scaled Site Plan (8.5 x 11); Construction Documents. See the required-documents checklist on this page for details on each.

Unincorporated Yuma County requires 3 inspection(s) for a residential building permit (new construction, addition, remodel), in order: Foundation/Footing, Framing, Final. Schedule each through Yuma County Department of Development Services (DDS), Building Safety Division ((928) 817-5000).

Apply through Yuma County Department of Development Services (DDS), Building Safety Division at 2351 West 26th Street, Yuma, AZ 85364. Phone: (928) 817-5000, email: contact.dds@yumacountyaz.gov. Office hours: Weekdays 8:00 a.m.-5:00 p.m. Inspection requests must be called in before 4:00 p.m. (M-F) for next-business-day service; provide permit number, address, and inspection type: (928) 817-5196. Fax: (928) 817-5020.. Official information: https://www.yumacountyaz.gov/government/development-services/divisions/building-safety.

Unincorporated Yuma County, Arizona has adopted: Arizona has no mandatory statewide building code — code adoption is a per-city/county authority. Yuma County's Department of Development Services (DDS), Building Safety Division independently adopts and administers its own construction codes for unincorporated county territory (areas outside the incorporated cities of Yuma, San Luis, Somerton, and Wellton). Source: Yuma County Building Safety Code Amendments page (yumacountyaz.gov/government/development-services/laws-guidelines/building-safety-code-amendments), which itemizes the county's currently-amended code editions.; 2018 International Building Code (IBC), amended by county-adopted amendments. Source: Yuma County Building Safety Code Amendments page (amendment document: 2018 International Building Code Amendments PDF).; 2018 International Residential Code (IRC), amended by county-adopted amendments (superseding the prior 2012 IRC amendments, which remain separately published on the same page for historical reference). Source: Yuma County Building Safety Code Amendments page.; 2018 International Existing Building Code (IEBC), amended by county-adopted amendments (superseding the prior 2012 IEBC amendments). Source: Yuma County Building Safety Code Amendments page.; 2018 International Swimming Pool and Spa Code (ISPSC), amended by county-adopted amendments. Source: Yuma County Building Safety Code Amendments page.; 2018 International Mechanical Code (IMC), amended by county-adopted amendments dated 2024 (document publish-date 638205375930770000, i.e. 2024). Source: Yuma County Building Safety Code Amendments page.; 2018 International Plumbing Code (IPC), amended by county-adopted amendments dated 2024. Source: Yuma County Building Safety Code Amendments page.; 2018 International Fuel Gas Code (IFGC), amended by county-adopted amendments dated 2024. Source: Yuma County Building Safety Code Amendments page.; 2020 National Electrical Code (NEC), amended by county-adopted amendments dated 2024 (this is a newer NEC edition than several incorporated Yuma County cities have adopted, e.g. San Luis at 2014 NEC). Source: Yuma County Building Safety Code Amendments page.; 2009 International Energy Conservation Code (IECC), amended by county-adopted amendments. This is the most recent energy-code edition found published on the county's amendments page as of this review; no newer IECC adoption document was located. Source: Yuma County Building Safety Code Amendments page.; The full 'Yuma County Comprehensive Building Code' (the county's consolidated code-and-amendments volume) is available for public review at the Board of Supervisors Office (198 S. Main Street, Yuma), the Yuma County Libraries, and the Department of Development Services office (2351 West 26th Street, Yuma). Source: Yuma County Building Safety FAQ, 'Yuma County Comprehensive Building Code, where can I read it?' (yumacountyaz.gov/government/advanced-components/faq-single-list/-seldept-25).. Local amendments apply — see the Unincorporated Yuma County overview page for the full list.