Wise County, TX - 2026 Building Permit Guide

Permit Authority

This section covers unincorporated Wise County only. Do not assume city-style building permitting. County authority verified here is narrower and includes septic/OSSF, floodplain, plats/subdivision-development controls, and related county engineering review.

Department

Wise County does not publish a general countywide building department for unincorporated construction

Address

County Engineer, 2901 S FM 51, Building 200, Decatur, TX 76234; Environmental Services OSSF form lists 2901 S FM 51, Decatur, TX 76234

Phone

County Engineer (940) 273-7289; Public Works / Environmental Services OSSF FAQ (940) 627-9332

Website

https://www.co.wise.tx.us/

Online Permit Portal

Application Process

1. First confirm the parcel is in unincorporated Wise County and not inside a city's limits or ETJ-controlled process.
2. If the project involves OSSF/septic, submit the county OSSF application and supporting design materials to Environmental Services/Public Works.
3. If the project involves construction in a floodplain, obtain a Floodplain Development Permit from the Wise County Floodplain Administrator before construction.
4. If the tract is being subdivided or developed, comply with the county Development Rules and Regulations and final-plat requirements.
5. Record required documents with the County Clerk when platting or filing required instruments.

Source: Wise County does not publish a general countywide building department for unincorporated construction

General Requirements

Wise County FAQ says Wise County does not require general building permits in unincorporated areas. Septic permits are required. County development rules also require a floodplain development permit for construction within the floodplain and regulate subdivision/development infrastructure and plats.

Required Documents

• For OSSF: county form requires owner/contact information, property legal description, and system design/supporting materials
• Floodplain and subdivision applications require their own forms and supporting engineering information

Building code

No countywide general building code adoption or general building permit program was found for unincorporated Wise County.

Owner-builder

For residential work in some unincorporated areas, Texas HB 2833 private-inspection rules may be relevant, but county-specific public guidance was not found.

Contractor requirements

County FAQ does not establish a general building-contractor licensing program for unincorporated construction; state trade licensing and any OSSF installer requirements still apply.

Fees

Plan check fee

Depends on the narrow county approval being sought.

Permit fee formula

OSSF and county development/recording fees are flat or filing based, not valuation based.

Payment note

County Clerk recording page says in-person payments can be made by cash or money order; credit cards are accepted only through the online self-service portal for recording fees.

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

Work That Does NOT Require a Permit

Contact the Wise County does not publish a general countywide building department for unincorporated construction to confirm whether your project requires a permit before starting work.

Inspections

How to Schedule

Inspection hours

County Engineer and county offices publish standard county office hours separately; no single county construction-inspection window was found.

Typical inspection sequence: OSSF and development approvals follow their own department procedures. Subdivision improvements are inspected under county development rules before county acceptance.

Additional Resources

• Building code: No countywide general building code adoption or general building permit program was found for unincorporated Wise County.
• FAQ
• Directory
• Plat Information
• Recording Fees
• License lookup guide: Texas Contractor License Requirements
• Contract template: Texas Homeowner-Contractor Agreement
• Texas hub: Texas Contractor License & Permit Hub

Frequently Asked Questions

Wise County Building Permit FAQ

Do I need a building permit in unincorporated Wise County, TX?

Wise County FAQ says Wise County does not require general building permits in unincorporated areas. Septic permits are required. County development rules also require a floodplain development permit for construction within the floodplain and regulate subdivision/development infrastructure and plats.

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

Fees are calculated as: OSSF and county development/recording fees are flat or filing based, not valuation based.. Plan check fee: Depends on the narrow county approval being sought..

How do I apply for a building permit in unincorporated Wise County, TX?

1. First confirm the parcel is in unincorporated Wise County and not inside a city's limits or ETJ-controlled process. 2. If the project involves OSSF/septic, submit the county OSSF application and supporting design materials to Environmental Services/Public Works. 3. If the project involves construction in a floodplain, obtain a Floodplain Development Permit from the Wise County Floodplain Administrator before construction. 4. If the tract is being subdivided or developed, comply with the county Development Rules and Regulations and final-plat requirements. 5. Record required documents with the County Clerk when platting or filing required instruments.