ADU Permit Fees & Costs in Phoenix, Arizona
Everything you need to apply for a adu permit in Phoenix, Arizona — documents, fees, steps, and a downloadable submission packet.
Key Facts
- Permit required
- Yes
- Submission method
- Online
- Typical fee range
- $4,200 – $17,325
- Review time
- Varies by jurisdiction
- Inspections
- 6 inspections required
Limited Data Available
Some information on this page has not been fully verified. We're working to improve data quality. Always verify with Phoenix directly.
Estimated Total Fees
$4,200 – $17,325
Range based on typical residential solar PV system. Actual fees depend on project valuation and system size.
| Fee Component | Range | Confidence |
|---|---|---|
| ADU Permit Fee[1][2] Permit fees based on construction valuation per Phoenix Code Section 601. Plan examination fees separate. Guest house/ADU treated as residential accessory use. | $2,800 – $10,500 | ✓ |
| Plan Review Fee[3][4] Plan review fee is typically 50-65% of the permit fee. | $1,400 – $6,825 | ✓ |
| Estimated Total | $4,200 – $17,325 |
Fees shown as ranges. Always verify the exact amount with Phoenix before submission. Additional fees may apply for expedited review or resubmittals.
Generate your permit packet
Get a personalized ADU permit packet for Phoenix, Arizona — tailored to your project details.
- Required forms: Building Permit Application, and more
- Pre-filled templates: Permit Cover Sheet
- Fee breakdown: $1,400–$10,500 estimated total
- Step-by-step Phoenix Development Services Department portal submission guide
- Inspection prep checklist (6 items)
- Personalized for your specific project details
Free to preview · Pro to download
Required Documents
Phoenix requires the following documents for this permit application.
Building Permit Application
Completed Phoenix building permit application with project details and valuation
Architectural Plans
Sealed architectural drawings prepared by Arizona licensed architect including floor plans, elevations, sections, and details
Site Plan
Site plan showing property boundaries, setbacks, building location, parking, landscaping, and driveway access
Structural Calculations
Structural calculations and engineering report sealed by Arizona licensed structural engineer
Utility Connection Plans
Utility plans showing connections to water, sewer, electric, gas, and any separate meter installations
Zoning Compliance Statement
Documentation showing ADU is allowable in current zoning district and meets all residential zone requirements
Permit Process
Follow these steps to submit your permit application through Phoenix Development Services Department.
- 1
Pre-Application Review
Verify ADU allowance in residential zone and confirm zoning compliance with Phoenix Code Title 24
You'll need: Zoning Compliance Statement
- 2
Submit Permit Application
Submit complete application with all required architectural and engineering documents
You'll need: Building Permit Application, Architectural Plans, Site Plan, Structural Calculations, Utility Connection Plans
- 3
Plan Examination
Development Services examines plans for compliance with Phoenix Building Code and zoning ordinance
- 4
Revisions and Resubmittal
Address examiner comments and resubmit corrected plans if necessary
- 5
Pay Permit Fees
Pay permit fees and examination fees based on construction valuation
- 6
Construction and Final Inspections
Schedule required inspections throughout construction and final walkthrough
- 7
Certificate of Occupancy
Receive occupancy approval after final inspection
Authority Sources
Data on this page is sourced from official records published by the permitting authority. Always verify requirements directly before submitting.
Verified February 15, 2026
Verified February 15, 2026
Verified February 15, 2026
Frequently Asked Questions
- Do I need a adu permit in Phoenix?
- Yes. Phoenix requires a adu permit for this type of project. Submitting without a permit may result in fines, required removal, or complications when selling your property.
- How long does adu permit approval take in Phoenix?
- Processing times in Phoenix vary depending on project complexity and current review volume. The process involves 7 steps. Contact Phoenix Development Services for current timelines.
- What documents are required for a adu permit in Phoenix?
- Phoenix requires 6 documents including Building Permit Application, Architectural Plans, Site Plan, Structural Calculations, and others. See the full list above for details.
- What happens if I build without a adu permit in Phoenix?
- Building without a permit in Phoenix can result in stop-work orders, fines, required removal of work, difficulty selling your property, and insurance complications. It is strongly recommended to obtain proper permits before starting work.
- Can PermitMagic help prepare my adu permit submission in Phoenix?
- Yes. PermitMagic generates a submission-ready packet tailored to Phoenix's requirements, including a document checklist, workflow steps, and authority references. Start a permit plan to get your personalized packet.
- How much does a adu permit cost in Phoenix?
- ADU permit fees in Phoenix typically range from $4,200 to $17,325, depending on project scope. Fees may include building permit, plan review, and technology surcharges. Verify current fees with Phoenix.
Related Permits
Other permits in Phoenix
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Answer a few project questions and get a adu permit packet for Phoenix, Arizona — with every document, form, and fee organized for submission.
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