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County building permits

Unincorporated Calhoun County

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

Min. permit fee
$60
Last verified
April 2026
On this page 6
§ 01

Permit authority

Flood Plain Administration

Street address
211 S. Ann St., Suite 301, Port Lavaca, TX 77979
Coverage
Unincorporated Calhoun County, including places such as Port O'Connor outside municipal limits. County permit program runs through Flood Plain Administration and related county controls such as subdivision and culvert compliance.
§ 02

When a permit is required

Permit triggers and exempt work for Calhoun County

The county publishes an Application for Development Permit through Flood Plain Administration for residential, commercial, RV park, and other work categories including new work, repair, addition, remodel, and moves. The county permit program is directly tied to floodplain administration, subdivision regulations, culvert permits, windstorm compliance, and utility-connection approval.

Note: No public exempt-work list was found for a countywide general building-permit program. The verified county permit program is framed through Flood Plain Administration and related county controls, so do not assume a broad city-style permit exemption list for all unincorporated construction.

Required documents
  • Development-permit application
  • Owner and contractor information
  • Legal description
  • Work description
  • Flood-zone information
  • Survey showing natural ground elevation in AE or VE zones
  • Finished-construction elevation certificate after completion in AE or VE zones
  • Plans
  • Subdivision or culvert compliance items as applicable
Building code
No clearly posted countywide building-code-adoption ordinance found for all unincorporated Calhoun County construction. County application requires compliance with the Flood Damage Prevention Order and State of Texas building and windstorm regulations.
Permit validity
All permits expire 6 months from date of issuance.
Owner-builder
No public owner-builder rule was found in reviewed county materials.
Contractor requirements
County application collects contractor information but does not publish a separate county contractor-registration program. Compliance with State of Texas building and windstorm regulations required. Certain specialized work may require licensed or certified professionals under state law.

Source: Flood Plain Administration ↗

§ 03

Application process

Application → plan check → issuance → inspection → final

  1. 01
    First verify the parcel is in unincorporated Calhoun County and not inside Port Lavaca, Point Comfort, or Seadrift.
  2. 02
    Contact Flood Plain Administration and use the county's Application for Development Permit when the project falls within the county's published development-permit program.
  3. 03
    Complete the application with owner, contractor, legal-description, use, square footage, class of work, water/sewer information, and floodplain details.
  4. 04
    If the property is in Flood Zone AE or VE, attach a survey showing natural ground elevation before the application can be processed.
  5. 05
    Submit plans. County states plans are preferred electronically and, if not electronic, cannot be larger than 8.5 x 11 inches.
  6. 06
    For projects in AE or VE zones, provide the required elevation documentation and comply with the county flood-damage-prevention requirements.
  7. 07
    Obtain any related county approvals referenced by the application, including culvert permit from the commissioner in the applicable precinct and any Port O'Connor Improvement District pre-construction inspection where applicable.
  8. 08
    Pay the permit fee by check or money order payable to Calhoun County (no credit/debit cards; cash must be exact).

Source: Flood Plain Administration ↗

§ 04

Fee schedule

Calhoun County building permit fees

Fee type
Amount
01
Minimum permit fee
$60
02
Plan check fee
Not separately stated.
03
Permit fee formula
Flat fee structure
04
Reinspection fee
No separate public reinspection-fee schedule found.
05
Penalty (no permit)
Violation of the Flood Damage Prevention Order is a Class C misdemeanor for each act and each day of violation, plus costs and expenses involved in the case.

Check or money order payable to Calhoun County; no credit or debit cards accepted; cash must be exact.

Fees change periodically. Confirm at the official fee schedule ↗ before budgeting.

§ 05

Required inspections

Scheduling and sequence

Typical sequence: In flood-hazard areas, the county requires pre-processing flood-zone documentation, review of plans, and a finished-construction elevation certificate within 60 days after completion for AE or VE projects. Utility connections are not to be finally made until the Floodplain Administrator approves compliance.

Source: Flood Plain Administration ↗

§ 06

Frequently asked

Common questions about unincorporated Calhoun County permits

01 Do I need a building permit in unincorporated Calhoun County, TX?
The county publishes an Application for Development Permit through Flood Plain Administration for residential, commercial, RV park, and other work categories including new work, repair, addition, remodel, and moves. The county permit program is directly tied to floodplain administration, subdivision regulations, culvert permits, windstorm compliance, and utility-connection approval.
02 How much does a building permit cost in unincorporated Calhoun County, TX?
Building permit fees in unincorporated Calhoun County, TX are set by the local building department and vary by project type and valuation. The minimum permit fee is $60. Fees are calculated as: Flat fee structure. Plan check fee: Not separately stated..
03 How do I apply for a building permit in unincorporated Calhoun County, TX?
To apply for a building permit in unincorporated Calhoun County, TX, follow these steps: 1. First verify the parcel is in unincorporated Calhoun County and not inside Port Lavaca, Point Comfort, or Seadrift. 2. Contact Flood Plain Administration and use the county's Application for Development Permit when the project falls within the county's published development-permit program. 3. Complete the application with owner, contractor, legal-description, use, square footage, class of work, water/sewer information, and floodplain details. 4. If the property is in Flood Zone AE or VE, attach a survey showing natural ground elevation before the application can be processed. 5. Submit plans. County states plans are preferred electronically and, if not electronic, cannot be larger than 8.5 x 11 inches. 6. For projects in AE or VE zones, provide the required elevation documentation and comply with the county flood-damage-prevention requirements. 7. Obtain any related county approvals referenced by the application, including culvert permit from the commissioner in the applicable precinct and any Port O'Connor Improvement District pre-construction inspection where applicable. 8. Pay the permit fee by check or money order payable to Calhoun County (no credit/debit cards; cash must be exact).
last verified April 2026 source Flood Plain Administration ↗ entry id permits/texas/calhoun/unincorporated

Educational reference. Permit rules and fees change — confirm current requirements directly with Flood Plain Administration before applying. Jaspector is not legal advice.