ADU Permit Requirements in San Antonio, Texas

Permit Process

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

1. 1

   Zoning Review

   Request zoning verification letter to confirm ADU eligibility under San Antonio land development code. Note: Texas has no statewide ADU law; local code controls.

   You'll need: Zoning Verification Letter

2. 2

   Submit Permit Application

   Submit complete building permit application with architectural, structural, and utility plans to Development Services

   You'll need: Building Permit Application, Architectural Plans, Site Plan, Structural Engineering Plans, Utility Connection Plans

3. 3

   Plan Review

   Development Services, Fire, and Building divisions review plans for compliance with San Antonio Land Development Code and building standards

4. 4

   Respond to Plan Review

   Address any comments from plan review and resubmit revised plans if required

5. 5

   Pay Permit Fees

   Pay calculated permit fees based on valuation and square footage

6. 6

   Construction Phase Inspections

   Schedule and pass required inspections: foundation, framing, electrical rough-in, plumbing rough-in, mechanical, and final

7. 7

   Final Inspection and Certificate of Occupancy

   Pass final inspection and receive Certificate of Occupancy from Building Inspection Division

Fees and Timeline

Authority Sources

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

Frequently Asked Questions

Do I need a adu permit in San Antonio?

Yes. San Antonio 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 San Antonio?

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

What documents are required for a adu permit in San Antonio?

San Antonio requires 6 documents including Building Permit Application, Architectural Plans, Site Plan, Zoning Verification Letter, and others. See the full list above for details.

What happens if I build without a adu permit in San Antonio?

Building without a permit in San Antonio 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 San Antonio?

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

ADU permit fees in San Antonio typically range from $4,500 to $13,200, depending on project scope. Fees may include building permit, plan review, and technology surcharges. Verify current fees with San Antonio.

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