County Building Permits
Wharton County, TX - 2026 Building Permit Guide
How to apply for a building permit in unincorporated Wharton County, Texas. Permit authority, application steps, fees, and inspection requirements.
Permit Authority
Unincorporated Wharton County only. The county controls are floodplain-related repair and development permitting, drainage-related requirements, subdivision policy, OSSF or septic permitting, and 911 rural addressing. For residential work in unincorporated areas, Texas HB 2833 private-inspection rules may be relevant.
- Department
- Wharton County Permit & Inspection Department / 9-1-1 Rural Addressing
- Address
- 315 E. Milam, Suite 102, Wharton, TX 77488
- Phone
- 979-532-8587
Application Process
- Confirm the parcel is in unincorporated Wharton County and coordinate 911 rural addressing if the tract does not already have the needed address assignment.
- Determine which county-controlled program applies. The county permit page publishes forms for OSSF, drainage, floodplain, subdivision, and 911 addressing.
- For flood-damaged structures, bring repair estimates to the Permit & Inspection Department. The county's flood-repair handout says a permit is required to rebuild or repair after a flood when applicable and that substantial-damage determinations are based on repair estimates versus CAD structure value.
- For floodplain development, use the county floodplain ordinance and related drainage materials. The county permit page publishes the floodplain ordinance, drainage criteria manual, and drainage fee schedule.
- For septic systems, submit the county OSSF application with the required site evaluator, designer, installer, water-supply, structure-size, and property information.
- Call ahead and make an appointment. The county permit page specifically asks applicants to call first because the inspector has daily inspections.
- After county review, complete any required inspections and ongoing OSSF compliance. The OSSF homeowner acknowledgement states aerobic-treatment systems require a maintenance contract.
Source: Wharton County Permit & Inspection Department / 9-1-1 Rural Addressing
General Requirements
No public county statement imposes a general building permit for all ordinary construction in unincorporated Wharton County. The county clearly publishes a permit requirement to rebuild or repair after a flood when applicable, floodplain-development controls, OSSF or septic permits, subdivision policy materials, drainage-related requirements, and 911 rural addressing forms. The flood-repair handout also says that if a flooded structure is outside the flood zone, the county will verify that address and no permit will be required for repairs.
Required Documents
- For OSSF: applicant contact information, physical address, legal description, water-supply information, structure square footage, bedroom count, system type, and licensed site evaluator, designer, and installer information.
- For flood repair: repair estimates and flood-zone evaluation
- County addressing, drainage, and subdivision items use separate forms
- Permit validity
- For aerobic OSSF systems, the county-published homeowner notice says the initial maintenance contract must be valid for at least two years and that ongoing maintenance contracts are required for the life of the system.
- Building code
- No public county webpage or handout clearly identified a countywide adopted general building code for unincorporated Wharton County. Published county materials focus on floodplain, drainage, OSSF, subdivision, and addressing controls.
- Owner-builder
- The county's public OSSF homeowner notice allows homeowner maintenance of an aerobic unit after the initial two-year contract only if the homeowner has met the requirements to perform maintenance.
- Contractor requirements
- For OSSF permits, the county application requires licensed site evaluator, system designer, and system installer information.
Fees
- Penalty (no permit)
- Permit noncompliance can cause an OSSF permit to be considered void and can lead to a complaint in Justice of the Peace Court.
Fees change. Verify current amounts at the official fee schedule.
Work That Does NOT Require a Permit
- If a flooded property is verified to be outside the flood zone, no permit is required for repairs.
Inspections
How to Schedule
- 979-532-8587 (phone)
- Scheduling deadline
- Call ahead and make an appointment; the inspector has daily inspections.
- Inspection hours
- 8 a.m. to 4 p.m.
Typical inspection sequence: Verified county inspection activity includes field inspections tied to floodplain review and OSSF permitting.
Additional Resources
- Building code: No public county webpage or handout clearly identified a countywide adopted general building code for unincorporated Wharton County. Published county materials focus on floodplain, drainage, OSSF, subdivision, and addressing controls.
- Floodplain Ordinance
- Rebuild or Repair Requirements (Flood Zone)
- OSSF Application
- OSSF Maintenance Contract Knowledge
- 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 Wharton County Permit & Inspection Department / 9-1-1 Rural Addressing before applying.
Frequently Asked Questions
Wharton County Building Permit FAQ
- Do I need a building permit in unincorporated Wharton County, TX?
- No public county statement imposes a general building permit for all ordinary construction in unincorporated Wharton County. The county clearly publishes a permit requirement to rebuild or repair after a flood when applicable, floodplain-development controls, OSSF or septic permits, subdivision policy materials, drainage-related requirements, and 911 rural addressing forms. The flood-repair handout also says that if a flooded structure is outside the flood zone, the county will verify that address and no permit will be required for repairs.
- How do I apply for a building permit in unincorporated Wharton County, TX?
- 1. Confirm the parcel is in unincorporated Wharton County and coordinate 911 rural addressing if the tract does not already have the needed address assignment. 2. Determine which county-controlled program applies. The county permit page publishes forms for OSSF, drainage, floodplain, subdivision, and 911 addressing. 3. For flood-damaged structures, bring repair estimates to the Permit & Inspection Department. The county's flood-repair handout says a permit is required to rebuild or repair after a flood when applicable and that substantial-damage determinations are based on repair estimates versus CAD structure value. 4. For floodplain development, use the county floodplain ordinance and related drainage materials. The county permit page publishes the floodplain ordinance, drainage criteria manual, and drainage fee schedule. 5. For septic systems, submit the county OSSF application with the required site evaluator, designer, installer, water-supply, structure-size, and property information. 6. Call ahead and make an appointment. The county permit page specifically asks applicants to call first because the inspector has daily inspections. 7. After county review, complete any required inspections and ongoing OSSF compliance. The OSSF homeowner acknowledgement states aerobic-treatment systems require a maintenance contract.
- What work is exempt from building permits in unincorporated Wharton County, TX?
- The following work is generally exempt: If a flooded property is verified to be outside the flood zone, no permit is required for repairs..
- How do I schedule a building inspection in unincorporated Wharton County, TX?
- Inspections can be scheduled via: 979-532-8587. Call ahead and make an appointment; the inspector has daily inspections..
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