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.

ADU Permit Online Portal Guide in Phoenix, Arizona

Everything you need to apply for a adu permit in Phoenix, Arizona — documents, fees, steps, and a downloadable submission packet.

Build My Permit Packet View Requirements

Key Facts

Permit required: Yes
Submission method: Online
Typical fee range: $4,200 – $17,325
Review time: Varies by jurisdiction
Inspections: 6 inspections required

VerifiedLast verified: Feb 15, 20262 verified sources

Phoenix Development Services Department

Verified

7-step online submission process — account registration required[1][2]

Open Portal

Step 1: Pre-Application Review

[3][4]

Verify ADU allowance in residential zone and confirm zoning compliance with Phoenix Code Title 24

What You Need

Zoning Compliance Statement

Portal steps may change without notice. Always confirm the current process at Phoenix's online portal.

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

Build My Permit Packet

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

Fees and Timeline

Fee Breakdown

Fee	Range	Confidence
ADU Permit Fee	$2,800 – $10,500	Verified
Plan Review Fee	$1,400 – $6,825	Verified

Inspections Required

Foundation and soil conditions inspection

Framing inspection for structural adequacy

Electrical system and panel installation

Plumbing rough-in and water/sewer connections

HVAC and mechanical systems

Final inspection and Certificate of Occupancy

Authority Sources

Data on this page is sourced from official records published by the permitting authority. Always verify requirements directly before submitting.

Phoenix Development Services Department

Last verified: February 15, 2026

2 sources referenced

Official page

Phoenix City Code Title 24 (Zoning Ordinance)

Verified February 15, 2026

Official page

Phoenix Building Code

Verified February 15, 2026

Official page

Phoenix Development Services Permit Guide

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.