Skip to main content
PermitBase

Residential Building Permit (New Construction, Addition, Accessory Structure) in Unincorporated Maricopa County, Arizona

Required for new single-family dwellings, residential additions, detached garages, carports, accessory structures, and other residential construction in the unincorporated areas of Maricopa County. The Maricopa County Planning and Development Department regulates all residential development in unincorporated areas (areas outside any incorporated city or town). Applications and all required documents are submitted online through the county's Permit Center portal.

Verified 2026-06-29 · Source

When you need this permit

  • Required for new single-family dwellings, additions, detached garages, carports, accessory structures, and structural alterations in unincorporated Maricopa County
  • Apply online through Permit Center (https://maricopacountyaz-energovweb.tylerhost.net/apps/selfservice); create a personal or company account before applying
  • Submit site plan (view a typical site plan example at https://www.maricopa.gov/DocumentCenter/View/97767) and all required construction plan documents as PDFs
  • Know the project valuation (used to calculate fees per Local Additions and Addenda Table 1-A)
  • Know the project's lot coverage (see calculation example at https://www.maricopa.gov/DocumentCenter/View/92458)
  • All PDF submissions must be properly rotated, flattened, and optimized per the Document Preparation Tip Sheet
  • Review CC&Rs of any HOA before construction; county permit issuance does not override HOA CC&Rs

Required documents

Check off what you have — your progress is saved on this device.

Not ready yet — 0 of 3 required documents checked.

This checker covers one permit. A full project usually triggers several — our checklist will assemble all of them, free →

Fee schedule

Building permit/inspection fee (Building-Inspection) — valuation-based per Table 1-ALocal Additions and Addenda, Table 1-A (June 2024 Summary of Fee Schedule). Project valuation is based on current ICC Building Valuation Data as modified for Arizona. Alterations are valued at 20% of new construction value for the area of alteration. Non-habitable accessory buildings (other than pipe-rail horse corrals) valued as a private garage.
$1–$500: $23.50; $501–$2,000: $23.50 for first $500 + $3.05 per additional $100; $2,001–$25,000: $69.25 for first $2,000 + $14.00 per additional $1,000; $25,001–$50,000: $391.75 for first $25,000 + $10.10 per additional $1,000; $50,001–$100,000: $643.75 for first $50,000 + $7.00 per additional $1,000; $100,001–$500,000: $993.75 for first $100,000 + $5.60 per additional $1,000; $500,001–$1,000,000: $3,233.75 for first $500,000 + $4.75 per additional $1,000; $1,000,001+: $5,608.75 for first $1,000,000 + $3.65 per additional $1,000
Plan review fee (Building-Plan Review)Local Additions and Addenda §Processing. Plan review fee is separate from the permit/inspection fee. Covers up to three submissions and reviews. No plan review fee for minor/web-issued permits. Upfront plan review payment is required before review begins.
65% of the calculated permit fee
After-hours residential inspectionLocal Additions and Addenda (Building-Residential After Hours Inspection)
$150 per inspection
Reinspection/failed inspectionLocal Additions and Addenda (Building-Residential Failed Inspection)
$150 per residential reinspection

Review timeline

Plan reviewTypical estimate — confirm current times with the Unincorporated Maricopa County building department
~5–30 business days

How long did your Residential Building Permit (New Construction, Addition, Accessory Structure) permit actually take in Unincorporated Maricopa County?

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

Inspection process

  1. 1

    Footing/Foundation

    Before concrete pour — verify footing depth, dimensions, and reinforcement per 2018 IRC/IBC

  2. 2

    Framing

    After framing, sheathing, and rough-in trades complete — before insulation or wall cover

  3. 3

    Insulation

    Insulation installed per 2018 IECC/IRC requirements before wall cover

  4. 4

    Final

    All work complete per approved plans; Certificate of Occupancy issued. Schedule via Permit Center or call 602-506-3301.

See the full Unincorporated Maricopa County inspection guide — scheduling & re-inspection fees →

Tips

  • All permit applications and document submissions must be done online through Permit Center (https://maricopacountyaz-energovweb.tylerhost.net/apps/selfservice). Paper submittals are no longer accepted.
  • PDF files must be properly rotated, flattened, and optimized before upload. Run PDFs through the county's PDF checker at https://scout.eplansoftreview.com/#!/scout before submitting.
  • Project valuation drives the permit fee. Alterations are valued at 20% of new construction value for the altered area; non-habitable accessory structures are valued as a private garage.
  • HOA CC&Rs are not superseded by county permits. Verify your HOA's CC&Rs before starting any construction or modification.
  • If your property is near Luke Air Force Base or its auxiliary airfields, check the county's High Noise or Accident Potential Zone map at https://gis.maricopa.gov/PND/PlanNet — new residential uses are NOT permitted in those zones.
  • For inspections: contact the assigned inspector listed in Permit Center ONLY on the date of your scheduled inspection. General scheduling questions: call 602-506-3301.

Frequently asked questions

Yes. Any new construction, addition, or structural alteration in unincorporated Maricopa County requires a building permit from the Maricopa County Planning and Development Department. Apply online at https://maricopacountyaz-energovweb.tylerhost.net/apps/selfservice. Source: https://www.maricopa.gov/1674/Residential-Construction

The permit fee is based on project valuation using Table 1-A in the county's Local Additions and Addenda. Valuation is determined using ICC Building Valuation Data as modified for Arizona. An additional plan review fee (65% of the permit fee) is charged separately. Source: Maricopa County Summary of the Fee Schedule, June 2024 (https://www.maricopa.gov/DocumentCenter/View/94568)

Plan review for a residential building permit (new construction, addition, accessory structure) in Unincorporated Maricopa County typically runs 5–30 business days. This is an estimate, not a published figure — confirm current review times with Maricopa County Planning and Development Department at 602-506-3301.

You'll need: Construction Plan Checklist (PDF); Typical Site Plan with Checklist; Document Preparation Tip Sheet. Depending on your project, Unincorporated Maricopa County may also ask for: Lot Coverage Calculation Example. See the required-documents checklist on this page for details on each.

Unincorporated Maricopa County requires 4 inspection(s) for a residential building permit (new construction, addition, accessory structure), in order: Footing/Foundation, Framing, Insulation, Final. Schedule each through Maricopa County Planning and Development Department (602-506-3301).

Apply through Maricopa County Planning and Development Department at 301 W. Jefferson, Suite 170, Phoenix, AZ 85003. Phone: 602-506-3301. Office hours: Mon–Fri 8:00 AM – 5:00 PM. Official information: https://www.maricopa.gov/797/Planning-Development.

Unincorporated Maricopa County, Arizona has adopted: 2018 International Building Code (IBC) — adopted by Maricopa County Board of Supervisors 17 August 2022 (with AZBO/MAG amendments); Local Additions and Addenda TA2022001 dated 19 September 2022; 2018 International Residential Code (IRC) — adopted 17 August 2022 (BOS vote, with AZBO/MAG amendments and Local Additions and Addenda); 2018 International Plumbing Code (IPC) — adopted 17 August 2022 (BOS vote, with AZBO/MAG amendments); 2018 International Mechanical Code (IMC) — adopted 17 August 2022 (BOS vote, with AZBO/MAG amendments); 2018 International Fuel Gas Code (IFGC) — adopted 17 August 2022 (BOS vote, with AZBO/MAG amendments); 2018 International Existing Building Code (IEBC) — adopted 17 August 2022 (BOS vote, with AZBO/MAG amendments); 2018 International Green Construction Code (IgCC) — adopted 17 August 2022, optional use; 2018 International Energy Conservation Code (IECC) — adopted 17 August 2022, optional use; 2017 National Electrical Code (NEC) — adopted 17 August 2022 (BOS vote, with AZBO/MAG amendments). Local amendments apply — see the Unincorporated Maricopa County overview page for the full list.

Sources & verification

Verified against official sources. Last reviewed 2026-06-29.

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

Other permits in Unincorporated Maricopa County

Commercial Building Permit (New Construction, Tenant Improvement, Remodel)Electrical PermitPlumbing PermitMechanical / HVAC PermitSolar PV Permit (Roof-Mounted and Ground-Mounted Photovoltaic)Pool / Spa Permit (In-Ground and Above-Ground)Fence / Block Wall PermitDemolition PermitEV Charger / EVSE Permit

Residential Building Permit (New Construction, Addition, Accessory Structure) in other cities

Apache Junction, ArizonaAvondale, ArizonaBenson, ArizonaBisbee, ArizonaBuckeye, ArizonaBullhead City, ArizonaCamp Verde, ArizonaCarefree, Arizona

Compare residential building permit (new construction, addition, accessory structure) fees across Arizona →

Look up this fee in a different city →

Embed this data card →

Now live

Build your Unincorporated Maricopa County project checklist

Describe your project once and get every permit, document, and fee it triggers in Unincorporated Maricopa County — in one checklist. Sign up and pay once to generate it, or go unlimited with Pro.

Get started →