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

The minimum permit fee is No general county building permit minimum fee found. No public Cass County OSSF fee schedule located.. Fees are calculated as: Plat filing costs handled through County Clerk filing requirements; no full county fee matrix for construction permits found..

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

The following work is generally exempt: OSSF 10-acre exemption if all TCEQ conditions are met; Emergency OSSF repairs reported in writing within 72 hours after repairs begin; Certain grandfathered OSSFs if TCEQ conditions are met. Note: No public exempt-work list found for general county construction because no public countywide building permit program was identified. Exemptions listed are OSSF-related state exemptions.

County Building Permits

Cass County, TX - 2026 Building Permit Guide

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

Texas Updated March 2026

Permit Authority

Unincorporated Cass County only. The reviewed public sources did not show a city-style countywide general building permit program for ordinary vertical construction in the unincorporated area.

Department: Cass County Judge / Commissioners Court; County Clerk; Cass County OSSF program as local authorized agent
Address: Cass County Law Enforcement and Justice Center, 604 TX Hwy 8, Linden, TX 75563
Email: casscounty@casscountytx.org
Website: https://www.co.cass.tx.us/

Application Process

Determine whether the parcel is in unincorporated Cass County and not inside any city limits.
Determine whether the project triggers one of the county's narrower verified controls (subdivision, OSSF, or floodplain) rather than a general building permit.
For subdivision activity, comply with the county plat filing standards and County Clerk filing requirements.
For OSSF or septic work, submit the permit application and planning materials to the permitting authority. Cass County acts as an OSSF authorized agent.
For flood-prone property, confirm directly with the county whether any floodplain development approval is required.

Typical processing time: OSSF applications must be approved or denied within 30 days under TCEQ rules. No general building permit timeline was found because no general building permit program was identified.

Source: Cass County Judge / Commissioners Court; County Clerk; Cass County OSSF program as local authorized agent

General Requirements

No public countywide general building permit requirement was found for ordinary building construction in unincorporated Cass County. Verified county-controlled items include subdivision plat filing and OSSF permitting. TCEQ states a permit and approved plan are required to construct, alter, repair, extend, and operate an OSSF.

Required Documents

For plats: filing standards and subdivision plat requirements adopted by Commissioners Court
For OSSF work: permit application, planning materials, site evaluation by a licensed site evaluator or professional engineer

Building code: No public source showed Cass County has adopted a countywide general building code for all ordinary construction in unincorporated areas.
Owner-builder: TCEQ allows owner installation of an OSSF in limited circumstances if the permitting authority allows it and state conditions are met.
Contractor requirements: No countywide contractor licensing program was identified. State licensing still applies to regulated trades and OSSF roles.

Fees

Minimum permit fee: No general county building permit minimum fee found. No public Cass County OSSF fee schedule located.
Permit fee formula: Plat filing costs handled through County Clerk filing requirements; no full county fee matrix for construction permits found.

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

Work That Does NOT Require a Permit

Contact the Cass County Judge / Commissioners Court; County Clerk; Cass County OSSF program as local authorized agent to confirm whether your project requires a permit before starting work.

Inspections

How to Schedule

Typical inspection sequence: No public countywide building inspection process was found. OSSF inspections are handled under the local OSSF program and state rules.

Additional Resources

Building code: No public source showed Cass County has adopted a countywide general building code for all ordinary construction in unincorporated areas.
County Home Page
County Clerk Page
Plat Filing Document
TCEQ OSSF Permits Page
TCEQ OSSF Program Contacts
Cass 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 Cass County Judge / Commissioners Court; County Clerk; Cass County OSSF program as local authorized agent before applying.

Frequently Asked Questions

Cass County Building Permit FAQ

Do I need a building permit in unincorporated Cass County, TX?: No public countywide general building permit requirement was found for ordinary building construction in unincorporated Cass County. Verified county-controlled items include subdivision plat filing and OSSF permitting. TCEQ states a permit and approved plan are required to construct, alter, repair, extend, and operate an OSSF.
How much does a building permit cost in unincorporated Cass County, TX?: The minimum permit fee is No general county building permit minimum fee found. No public Cass County OSSF fee schedule located.. Fees are calculated as: Plat filing costs handled through County Clerk filing requirements; no full county fee matrix for construction permits found..
How do I apply for a building permit in unincorporated Cass County, TX?: 1. Determine whether the parcel is in unincorporated Cass County and not inside any city limits. 2. Determine whether the project triggers one of the county's narrower verified controls (subdivision, OSSF, or floodplain) rather than a general building permit. 3. For subdivision activity, comply with the county plat filing standards and County Clerk filing requirements. 4. For OSSF or septic work, submit the permit application and planning materials to the permitting authority. Cass County acts as an OSSF authorized agent. 5. For flood-prone property, confirm directly with the county whether any floodplain development approval is required.
How long does it take to get a building permit in unincorporated Cass County, TX?: Typical processing time is OSSF applications must be approved or denied within 30 days under TCEQ rules. No general building permit timeline was found because no general building permit program was identified..
What work is exempt from building permits in unincorporated Cass County, TX?: The following work is generally exempt: OSSF 10-acre exemption if all TCEQ conditions are met; Emergency OSSF repairs reported in writing within 72 hours after repairs begin; Certain grandfathered OSSFs if TCEQ conditions are met. Note: No public exempt-work list found for general county construction because no public countywide building permit program was identified. Exemptions listed are OSSF-related state exemptions.

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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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