What work is exempt from building permits in unincorporated Duval County, TX?

The following work is generally exempt: OSSF: The 10 acre rule may exempt an OSSF from permitting if all TCEQ conditions are satisfied; OSSF: Emergency repairs do not require a permit if reported in writing to the permitting authority within 72 hours after repairs begin; OSSF: Some existing or grandfathered OSSFs may not need a permit if TCEQ's stated conditions are met. Note: These exemptions apply only to OSSF-specific work and are subject to TCEQ conditions. No countywide exempt-work list found for general building permits because no general permit program was identified.

How do I schedule a building inspection in unincorporated Duval County, TX?

Inspections can be scheduled via: Duval County Authorized Agent (OSSF work), Emergency Management (Floodplain coordination).

County Building Permits

Duval County, TX - 2026 Building Permit Guide

How to apply for a building permit in unincorporated Duval County, Texas. Permit authority, application steps, fees, and inspection requirements.

Texas Updated March 2026

Permit Authority

Unincorporated Duval County outside Benavides, Freer, and the Duval County portion of San Diego. Narrower verified controls are OSSF permitting, floodplain coordination, subdivision regulation, and 911 addressing.

Department: Duval County (no countywide general building department identified)
Address: Duval County Courthouse, 400 E. Gravis St, San Diego, TX 78384
Phone: (361) 279-6208
Website: https://www.co.duval.tx.us/

Application Process

Verify the parcel is in unincorporated Duval County and outside Benavides, Freer, and the Duval County portion of San Diego.
Determine which narrower county control applies: OSSF permitting, floodplain coordination, subdivision regulation, or 911 addressing.
For OSSF work, confirm the permitting authority in TCEQ OARS. The Duval County Authorized Agent handles OSSF permitting for unincorporated county areas.
Submit the OSSF application and planning materials to the authorized agent. A permit and approved plan are required to construct, alter, repair, extend, or operate an OSSF unless an exemption applies.
If the project includes land division or subdivision development, review the county Subdivision Rules and Regulations and coordinate with the county.
If the project involves flood hazard area development, coordinate with Duval County Emergency Management before development.
If a new rural address or site addressing issue is involved, coordinate with the county 911 Addressing Coordinator.
Complete any required inspections and approvals before use. TCEQ states the permitting authority must approve or deny an OSSF application within 30 days of receipt.

Typical processing time: OSSF review: TCEQ requires action within 30 days of receipt. No public processing-time estimate for subdivision, floodplain, or 911 addressing.

Source: Duval County (no countywide general building department identified)

General Requirements

No public countywide general building permit program found for ordinary construction. Specific requirements apply for: (1) OSSF/septic systems -- TCEQ requires a permit and approved plan. (2) Subdivision development -- county Subdivision Rules apply. (3) Floodplain development -- county coordination required.

Required Documents

For OSSF work: application, planning materials, and site evaluation by a licensed site evaluator or professional engineer

Permit validity: No county general building permit validity rule found. TCEQ does not publish a Duval County-specific OSSF expiration rule.
Building code: No public countywide building code adoption for ordinary construction found in the sources reviewed.
Owner-builder: TCEQ states an owner may install an OSSF if the permitting authority allows it and the system is for a single-family residence the owner owns on property the owner owns, with no intent to develop for sale or lease.
Contractor requirements: No county general contractor licensing program found. OSSF installers and related personnel are regulated under TCEQ licensing rules.

Fees

Payment note: Verify current OSSF and subdivision-related fees directly with the county before filing.

Work That Does NOT Require a Permit

OSSF: The 10 acre rule may exempt an OSSF from permitting if all TCEQ conditions are satisfied
OSSF: Emergency repairs do not require a permit if reported in writing to the permitting authority within 72 hours after repairs begin
OSSF: Some existing or grandfathered OSSFs may not need a permit if TCEQ's stated conditions are met

Important: These exemptions apply only to OSSF-specific work and are subject to TCEQ conditions. No countywide exempt-work list found for general building permits because no general permit program was identified.

Inspections

How to Schedule

Duval County Authorized Agent (OSSF work) (contact)
Emergency Management (Floodplain coordination) (contact)

Inspection hours: Monday-Friday, 8:00 AM to 5:00 PM

Typical inspection sequence: No public county vertical-construction inspection sequence found. For OSSF work, inspections follow the approved plan and the authorized agent process.

Additional Resources

Building code: No public countywide building code adoption for ordinary construction found in the sources reviewed.
Verify contractor license: TCEQ OSSF Licensing (for septic installers)
Duval County Home
TCEQ OARS - OSSF Authority Lookup
TCEQ OSSF Permits Page
Texas Flood Information
License lookup guide: Texas Contractor License Requirements
Contract template: Texas Homeowner-Contractor Agreement
Texas hub: Texas Contractor License & Permit Hub

Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the Duval County (no countywide general building department identified) before applying.

Frequently Asked Questions

Duval County Building Permit FAQ

Do I need a building permit in unincorporated Duval County, TX?: No public countywide general building permit program found for ordinary construction. Specific requirements apply for: (1) OSSF/septic systems -- TCEQ requires a permit and approved plan. (2) Subdivision development -- county Subdivision Rules apply. (3) Floodplain development -- county coordination required.
How do I apply for a building permit in unincorporated Duval County, TX?: 1. Verify the parcel is in unincorporated Duval County and outside Benavides, Freer, and the Duval County portion of San Diego. 2. Determine which narrower county control applies: OSSF permitting, floodplain coordination, subdivision regulation, or 911 addressing. 3. For OSSF work, confirm the permitting authority in TCEQ OARS. The Duval County Authorized Agent handles OSSF permitting for unincorporated county areas. 4. Submit the OSSF application and planning materials to the authorized agent. A permit and approved plan are required to construct, alter, repair, extend, or operate an OSSF unless an exemption applies. 5. If the project includes land division or subdivision development, review the county Subdivision Rules and Regulations and coordinate with the county. 6. If the project involves flood hazard area development, coordinate with Duval County Emergency Management before development. 7. If a new rural address or site addressing issue is involved, coordinate with the county 911 Addressing Coordinator. 8. Complete any required inspections and approvals before use. TCEQ states the permitting authority must approve or deny an OSSF application within 30 days of receipt.
How long does it take to get a building permit in unincorporated Duval County, TX?: Typical processing time is OSSF review: TCEQ requires action within 30 days of receipt. No public processing-time estimate for subdivision, floodplain, or 911 addressing..
What work is exempt from building permits in unincorporated Duval County, TX?: The following work is generally exempt: OSSF: The 10 acre rule may exempt an OSSF from permitting if all TCEQ conditions are satisfied; OSSF: Emergency repairs do not require a permit if reported in writing to the permitting authority within 72 hours after repairs begin; OSSF: Some existing or grandfathered OSSFs may not need a permit if TCEQ's stated conditions are met. Note: These exemptions apply only to OSSF-specific work and are subject to TCEQ conditions. No countywide exempt-work list found for general building permits because no general permit program was identified.
How do I schedule a building inspection in unincorporated Duval County, TX?: Inspections can be scheduled via: Duval County Authorized Agent (OSSF work), Emergency Management (Floodplain coordination).

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Important: This page is an educational resource provided by jaspector.com. It is not legal advice, and it does not substitute for official guidance from the permit authority listed above. Permit requirements, fees, and processes change frequently. Always verify current requirements directly with the issuing department before beginning any construction project. Use of this page does not create an attorney-client relationship. Jaspector assumes no liability for any outcomes arising from reliance on this information.

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