How much does a building permit cost in unincorporated Marion County, TX?

The minimum permit fee is $360.00 (NETMWD septic permit for single-family residence; no county general building permit fee found). Fees are calculated as: NETMWD flat septic fees: $360 for single-family, $610 for multi-family or commercial. No county general building permit formula found..

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

The following work is generally exempt: Qualifying 10-acre-rule systems under Texas state OSSF law. Note: No public exempt-work list found for a county general building permit program because no such documented countywide program exists. For OSSF work, TCEQ states certain emergency repairs are not required to obtain a permit but must be reported in writing within 72 hours after work begins.

County Building Permits

Marion County, TX - 2026 Building Permit Guide

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

Texas Updated March 2026

Permit Authority

Unincorporated areas of Marion County. Floodplain and onsite septic facility (OSSF) controls apply in designated areas; no countywide general building permit program was found for ordinary building construction.

Department: Marion County (No countywide general building department found); Specialized authorities: County Judge for floodplain matters; Northeast Texas Municipal Water District (NETMWD) as Designated Representative for onsite septic facilities
Address: Marion County Courthouse, 102 W. Austin Street, Jefferson, TX 75657
Phone: 903-665-3261
Website: https://www.co.marion.tx.us/

Application Process

Determine whether your project is in unincorporated Marion County and not within Jefferson city limits.
Confirm directly with Marion County whether any project-specific county control applies (general building permits are not countywide documented).
If the project requires an on-site sewage facility (OSSF), obtain a site evaluation and complete the NETMWD OSSF permit package.
Submit the OSSF application and planning materials to NETMWD, the Designated Representative serving Marion County for septic permitting.
NETMWD reviews the materials. TCEQ requires OSSF applications to be approved or denied within 30 days; subdivision or development planning materials within 45 days.
If the site is in a floodplain area or subject to federal grant-related floodplain review, coordinate with Marion County officials before disturbing the site.
After OSSF approval, install the septic system and obtain required inspections through the septic program before use.

Typical processing time: OSSF permits: 30 days for approval or denial; subdivision or development planning materials: 45 days.

Source: Marion County (No countywide general building department found); Specialized authorities: County Judge for floodplain matters; Northeast Texas Municipal Water District (NETMWD) as Designated Representative for onsite septic facilities

General Requirements

No countywide general building permit requirement found for ordinary building construction in unincorporated Marion County. A permit is required for onsite sewage facility (OSSF) work to construct, install, alter, extend, or repair a septic system, except for limited state-law exemptions such as qualifying 10-acre-rule systems and certain emergency repairs. County floodplain or environmental approvals may apply in specific circumstances.

Required Documents

For general building permits: No county application found.
For OSSF permits: OSSF permit package (provided by NETMWD), site evaluation, and planning materials.
For subdivision or similar developments: Site plan, topographic map, 100-year floodplain map, soil survey, well locations, easements, drainage plan, and OSSF compatibility report.

Permit validity: No public county building-permit validity terms found. OSSF expiration terms not confirmed from Marion-specific ordinance.
Building code: No public countywide adopted building code for unincorporated Marion County found.
Owner-builder: For OSSF work, Texas state law allows owner installation for a single-family dwelling the owner owns, subject to local permitting-authority requirements and trade-license limits.
Contractor requirements: No county general contractor licensing program found. OSSF work is controlled by Texas state licensing rules administered through TCEQ for installers, site evaluators, designated representatives, and related roles.

Fees

Minimum permit fee: $360.00 (NETMWD septic permit for single-family residence; no county general building permit fee found)
Permit fee formula: NETMWD flat septic fees: $360 for single-family, $610 for multi-family or commercial. No county general building permit formula found.
Payment note: No public online payment workflow found for county building or NETMWD OSSF permits in reviewed sources.

Fees change. Verify current amounts at the official fee schedule.

Work That Does NOT Require a Permit

Contact the Marion County (No countywide general building department found); Specialized authorities: County Judge for floodplain matters; Northeast Texas Municipal Water District (NETMWD) as Designated Representative for onsite septic facilities to confirm whether your project requires a permit before starting work.

Inspections

How to Schedule

Inspection hours: Marion County Courthouse: Monday-Friday, 8:00 AM to 12:00 PM and 1:00 PM to 5:00 PM. NETMWD office contact available; septic inspection hours not published.

Typical inspection sequence: No county general building inspection sequence found. For OSSF work, inspection sequencing is governed by the septic permitting process and state OSSF rules.

Additional Resources

Building code: No public countywide adopted building code for unincorporated Marion County found.
Verify contractor license: TCEQ OSSF Licensing
Marion County Home
Marion County Contact
Marion County Emergency Management
NETMWD Facility Planning
Marion County Hazard Mitigation Plan
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 Marion County (No countywide general building department found); Specialized authorities: County Judge for floodplain matters; Northeast Texas Municipal Water District (NETMWD) as Designated Representative for onsite septic facilities before applying.

Frequently Asked Questions

Marion County Building Permit FAQ

Do I need a building permit in unincorporated Marion County, TX?: No countywide general building permit requirement found for ordinary building construction in unincorporated Marion County. A permit is required for onsite sewage facility (OSSF) work to construct, install, alter, extend, or repair a septic system, except for limited state-law exemptions such as qualifying 10-acre-rule systems and certain emergency repairs. County floodplain or environmental approvals may apply in specific circumstances.
How much does a building permit cost in unincorporated Marion County, TX?: The minimum permit fee is $360.00 (NETMWD septic permit for single-family residence; no county general building permit fee found). Fees are calculated as: NETMWD flat septic fees: $360 for single-family, $610 for multi-family or commercial. No county general building permit formula found..
How do I apply for a building permit in unincorporated Marion County, TX?: 1. Determine whether your project is in unincorporated Marion County and not within Jefferson city limits. 2. Confirm directly with Marion County whether any project-specific county control applies (general building permits are not countywide documented). 3. If the project requires an on-site sewage facility (OSSF), obtain a site evaluation and complete the NETMWD OSSF permit package. 4. Submit the OSSF application and planning materials to NETMWD, the Designated Representative serving Marion County for septic permitting. 5. NETMWD reviews the materials. TCEQ requires OSSF applications to be approved or denied within 30 days; subdivision or development planning materials within 45 days. 6. If the site is in a floodplain area or subject to federal grant-related floodplain review, coordinate with Marion County officials before disturbing the site. 7. After OSSF approval, install the septic system and obtain required inspections through the septic program before use.
How long does it take to get a building permit in unincorporated Marion County, TX?: Typical processing time is OSSF permits: 30 days for approval or denial; subdivision or development planning materials: 45 days..
What work is exempt from building permits in unincorporated Marion County, TX?: The following work is generally exempt: Qualifying 10-acre-rule systems under Texas state OSSF law. Note: No public exempt-work list found for a county general building permit program because no such documented countywide program exists. For OSSF work, TCEQ states certain emergency repairs are not required to obtain a permit but must be reported in writing within 72 hours after work begins.

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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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