What documents do I need for a ADU permit in Austin?

Austin requires 6 documents for a ADU permit, including: Building Permit Application, Architectural Plans, Site Plan, Structural Calculations, Utility Connection Plans, and more.

What are the most commonly missing items for Austin ADU permits?

Common missing items include detailed site plans with scale and dimensions, equipment specification sheets, and NEC labeling plans. A complete checklist helps avoid plan-check rejections.

Do I need a adu permit in Austin?

Yes. Austin 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 Austin?

Processing times in Austin vary depending on project complexity and current review volume. The process involves 7 steps. Contact Austin Development Services for current timelines.

What documents are required for a adu permit in Austin?

Austin 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 Austin?

Building without a permit in Austin 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 Austin?

Yes. PermitMagic generates a submission-ready packet tailored to Austin'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 Austin?

ADU permit fees in Austin typically range from $5,250 to $19,800, depending on project scope. Fees may include building permit, plan review, and technology surcharges. Verify current fees with Austin.

ADU Permit Requirements in Austin, Texas

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

Build My Permit Packet

Key Facts

Permit required: Yes
Submission method: Online
Typical fee range: $5,250 – $19,800
Review time: Varies by jurisdiction
Inspections: 6 inspections required

VerifiedLast verified: Feb 15, 20262 verified sources

Permit Requirements (6 items)

6 required

📋 Forms & Applications(1)

📐 Plans & Diagrams(3)

📄 Supporting Documents(2)

Generate your permit packet

Get a personalized ADU permit packet for Austin, Texas — tailored to your project details.

Required forms: Building Permit Application, and more
Pre-filled templates: Permit Cover Sheet
Fee breakdown: $1,750–$12,000 estimated total
Step-by-step Austin 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

Permit Process

Follow these steps to submit your permit application through Austin Development Services Department.

1
Pre-Application Consultation
Meet with City staff to discuss ADU proposal and compliance with Code Section 25-2-792
You'll need: Property Deed
2
Submit Plans and Application
Submit complete building permit application with architectural and engineering documents
You'll need: Building Permit Application, Architectural Plans, Site Plan, Structural Calculations, Utility Connection Plans
3
Plan Review
City planning and building review staff examine plans for compliance with zoning and building codes
4
Address Corrections and Revisions
Submit revised plans if reviewer identifies code compliance issues
5
Pay Permit Fees
Pay calculated permit fees based on valuation
6
Construction Inspections
Schedule and pass required building inspections during construction
7
Certificate of Occupancy
Receive Certificate of Occupancy after final inspection

Fees and Timeline

Fee Breakdown

Fee	Range	Confidence
ADU Permit Fee	$3,500 – $12,000	Verified
Plan Review Fee	$1,750 – $7,800	Verified

Inspections Required

Foundation and footings per IBC standards

Framing and structural members

Electrical systems and panel inspection

Plumbing rough-in and final connections

Mechanical systems and HVAC

Final inspection and Code compliance verification

Authority Sources

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

Austin Development Services Department

Last verified: February 15, 2026

2 sources referenced

Official page

Austin City Code Section 25-2-792 (Accessory Dwelling Unit)

Verified February 15, 2026

Official page

Austin ADU Permitting Guide

Verified February 15, 2026

Official page

Austin Building Code (Based on IBC 2015)

Verified February 15, 2026

Frequently Asked Questions

Do I need a adu permit in Austin?: Yes. Austin 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 Austin?: Processing times in Austin vary depending on project complexity and current review volume. The process involves 7 steps. Contact Austin Development Services for current timelines.
What documents are required for a adu permit in Austin?: Austin 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 Austin?: Building without a permit in Austin 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 Austin?: Yes. PermitMagic generates a submission-ready packet tailored to Austin'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 Austin?: ADU permit fees in Austin typically range from $5,250 to $19,800, depending on project scope. Fees may include building permit, plan review, and technology surcharges. Verify current fees with Austin.