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Codes, exemptions & field inspections

Build to the adopted code. Verify every exception.

This guide translates the available agency record into a preconstruction checklist for structural scope, minor work, and inspection release. The adopted code and the issuing official control when a field condition is disputed.

Regulatory framework

The code baseline for Irion County.

Irion County adopted new Subdivision and Manufactured Home Rental Community Regulations on June 24, 2025 for unincorporated territory. They regulate plats, MHRC infrastructure, roads, drainage, stormwater and floodplain identification, water and sewer service, septic/OSSF planning, and utility connections. The current Texas Floodplain Administrator directory lists Bradley Fletcher for Irion County. The county publishes no general ordinary-building permit program, zoning ordinance, or adopted countywide ICC structural-code edition. In areas without a locally authorized OSSF agent, TCEQ Region 8 administers Texas Health and Safety Code Chapter 366 and 30 TAC Chapter 285.

Inspection lane

Submit subdivision or MHRC applications, supporting plans, and cashier's-check or money-order fees to the Irion County Clerk at the courthouse for review by the County Judge. MHRC construction and occupancy may not begin before plan approval; the county may inspect infrastructure during or after construction and issues the Certificate of Compliance only after conformance, which is required before utility service. Coordinate floodplain review with the County Judge's office and listed county Floodplain Administrator. For an OSSF under state jurisdiction, submit the TCEQ application and planning package to Region 8 and call 325-655-9479 to arrange required construction inspection before covering or operating the system.

Minor-work playbook

Understand what may be exempt—and what is not.

No county cosmetic-work exemption list or general building permit is published. The 2025 regulations apply to nonexempt land divisions and manufactured-home rental communities in unincorporated Irion County; an owner claiming a statutory plat exemption should obtain the county's determination before selling lots or requesting utility service. State OSSF exceptions are limited to qualifying 10-acre single-family systems meeting every condition, qualifying grandfathered systems, and defined emergency repairs reported in writing within 72 hours. City of Mertzon requirements apply inside municipal jurisdiction.

Field rule

A permit exemption generally addresses one narrow construction trigger. It does not automatically waive zoning, land-use, floodplain, shoreline, fire, energy, electrical, utility, septic, or right-of-way requirements. Obtain written confirmation when the project involves a new structure, structural alteration, change in occupancy, or concealed work.

Inspection pipeline

Keep the work visible at every release point.

  1. 1

    Request with lead time

    Submit subdivision or MHRC applications, supporting plans, and cashier's-check or money-order fees to the Irion County Clerk at the courthouse for review by the County Judge. MHRC construction and occupancy may not begin before plan approval; the county may inspect infrastructure during or after construction and issues the Certificate of Compliance only after conformance, which is required before utility service. Coordinate floodplain review with the County Judge's office and listed county Floodplain Administrator. For an OSSF under state jurisdiction, submit the TCEQ application and planning package to Region 8 and call 325-655-9479 to arrange required construction inspection before covering or operating the system.

  2. 2

    Preserve access

    Do not cover framing, reinforcement, wiring, piping, damp-proofing, or life-safety work until the required inspection has been completed and documented.

  3. 3

    Close the record

    Retain the approved plans, inspection approvals, correction responses, and final certificate or occupancy release with the property file.

Contractor verification

Verify the builder before the contract is signed.

Use the state licensing system to verify active registration, trade credentials, bond status, and liability coverage where available. Match the legal business name to the proposal and permit application.

Verify contractor ↗

Planning reference

Keep the parcel rules beside the building plans.

A building permit is only one part of statutory compliance. Check the local zoning, ordinance, map, or land-use reference before finalizing setbacks, height, lot coverage, access, drainage, or accessory structure placement.

Open planning reference ↗

Source trail

Official sources for this profile

Use these direct agency or licensing links to confirm current instructions before you file, pay, or schedule work. External pages control if their information differs from this directory.

Agency websiteOpen official source ↗Application instructionsOpen official source ↗Fee scheduleOpen official source ↗Planning or zoning referenceOpen official source ↗Contractor license lookupOpen official source ↗

Project questions

Frequently asked questions for Irion County

Who handles permitting for this jurisdiction?

Irion County Judge and Floodplain Administrator / TCEQ Region 8 San Angelo OSSF Program is the identified county-level authority for this profile. Confirm that the property is in its service area before filing.

How should I begin an application?

No verified online portal was located in the reviewed public materials. Contact Irion County Judge Molly Criner: 325-835-4361; County Clerk/subdivision intake: 325-835-2421; TCEQ Region 8 San Angelo: 325-655-9479; county Floodplain Administrator Bradley Fletcher: N/A and request the current application route before preparing a final submittal.

How long might review take?

TCEQ must approve or deny a complete OSSF application and planning materials within 30 days. An approved MHRC plan must be recorded within 30 days after approval, but the county does not publish a typical initial subdivision, MHRC, or floodplain review duration.

How are inspections scheduled?

Submit subdivision or MHRC applications, supporting plans, and cashier's-check or money-order fees to the Irion County Clerk at the courthouse for review by the County Judge. MHRC construction and occupancy may not begin before plan approval; the county may inspect infrastructure during or after construction and issues the Certificate of Compliance only after conformance, which is required before utility service. Coordinate floodplain review with the County Judge's office and listed county Floodplain Administrator. For an OSSF under state jurisdiction, submit the TCEQ application and planning package to Region 8 and call 325-655-9479 to arrange required construction inspection before covering or operating the system.

Which codes and exemptions should I review?

Irion County adopted new Subdivision and Manufactured Home Rental Community Regulations on June 24, 2025 for unincorporated territory. They regulate plats, MHRC infrastructure, roads, drainage, stormwater and floodplain identification, water and sewer service, septic/OSSF planning, and utility connections. The current Texas Floodplain Administrator directory lists Bradley Fletcher for Irion County. The county publishes no general ordinary-building permit program, zoning ordinance, or adopted countywide ICC structural-code edition. In areas without a locally authorized OSSF agent, TCEQ Region 8 administers Texas Health and Safety Code Chapter 366 and 30 TAC Chapter 285. No county cosmetic-work exemption list or general building permit is published. The 2025 regulations apply to nonexempt land divisions and manufactured-home rental communities in unincorporated Irion County; an owner claiming a statutory plat exemption should obtain the county's determination before selling lots or requesting utility service. State OSSF exceptions are limited to qualifying 10-acre single-family systems meeting every condition, qualifying grandfathered systems, and defined emergency repairs reported in writing within 72 hours. City of Mertzon requirements apply inside municipal jurisdiction.

Field sequencing matters

The inspector needs to see the work at the right moment.

Code compliance is not only a plan-review exercise. Footings, reinforcement, framing, fireblocking, wiring, piping, insulation, weather protection, and life-safety systems each have points where the work must remain accessible. Build the inspection calendar into the trade schedule instead of treating it as a final administrative step.

When a project qualifies for a narrow minor-work exemption, keep a written explanation of why it qualifies and confirm that related zoning, utility, fire, energy, or environmental rules do not create a separate approval requirement.

Closeout file

Keep the approved plan set, inspection approvals, correction responses, contractor license verification, final certificate, and any occupancy release together. A clean record protects the owner, builder, lender, insurer, and future buyer.