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
- Req
Construction Plan Checklist (PDF)
Maricopa County checklist of required plan elements for residential construction; available at https://www.maricopa.gov/DocumentCenter/View/4722/Construction-Plan-Checklist-PDF
- Req
Typical Site Plan with Checklist
Example and checklist for the required site plan; available at https://www.maricopa.gov/DocumentCenter/View/97767/Typical-Site-Plan-with-Checklist
- Opt
Lot Coverage Calculation Example
Example for calculating lot coverage, required as part of the application; available at https://www.maricopa.gov/DocumentCenter/View/92458
- Req
Document Preparation Tip Sheet
Requirements for PDFs submitted to Permit Center; available at https://www.maricopa.gov/DocumentCenter/View/41876/DOCUMENT-PREPARATION-TIP-SHEET-PDF
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Building permit/inspection fee (Building-Inspection) — valuation-based per Table 1-A | $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 | Local 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. |
| Plan review fee (Building-Plan Review) | 65% of the calculated permit fee | 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. |
| After-hours residential inspection | $150 per inspection | Local Additions and Addenda (Building-Residential After Hours Inspection) |
| Reinspection/failed inspection | $150 per residential reinspection | Local Additions and Addenda (Building-Residential Failed Inspection) |
Review timeline
~5–30 business days
Typical estimate — confirm current times with the Unincorporated Maricopa County building department
Inspection process
- 1
Footing/Foundation
Before concrete pour — verify footing depth, dimensions, and reinforcement per 2018 IRC/IBC
- 2
Framing
After framing, sheathing, and rough-in trades complete — before insulation or wall cover
- 3
Insulation
Insulation installed per 2018 IECC/IRC requirements before wall cover
- 4
Final
All work complete per approved plans; Certificate of Occupancy issued. Schedule via Permit Center or call 602-506-3301.
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
- Do I need a building permit for a residential addition in unincorporated Maricopa County?
- 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
- How is the building permit fee calculated?
- 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)
Sources & verification
Verified against official sources. Last reviewed 2026-06-29.
- Maricopa County Planning and Development Department — official building department
- Residential Construction | Maricopa County Planning & Development
- Construction Permit Information | Maricopa County
- Local Additions and Addenda (TA2022001, 19 September 2022) — PDF
- Summary of the Fee Schedule, June 2024 — PDF
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.
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