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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 Harris County.

In unincorporated Harris County, single-family and duplex construction permitted on or after September 1, 2009 is subject to Harris County Residential Building Code Standards and the residential inspection-notification system; county materials identify the 2006 International Residential Code or the code applicable in the county seat under Texas Local Government Code Chapter 233. Commercial/public buildings and multifamily dwellings of four or more units are governed by the Harris County Fire Code Regulations effective October 1, 2025. Floodplain development, civil/site work, stormwater, driveway, OSSF, and other county regulations also apply according to project scope.

Inspection lane

Request development inspections through the Harris County ePermits Inspection Request portal by entering the permit number, or contact Development Inspections at 713-274-3924. Residential builders or qualified third-party inspectors must record foundation, framing/mechanical, and final inspection results in the county Residential Building Code Inspection System. For septic inspections, the licensed installer must give at least 24 hours' notice through the online form or by phone at 713-274-3800; a valid septic permit and county-stamped approved plans are required.

Minor-work playbook

Understand what may be exempt—and what is not.

No county demolition permit is required for demolition work in unincorporated Harris County, although later construction or development requires a permit. A residential fence outside a Special Flood Hazard Area does not require a county permit. These are narrow exemptions: the county's residential application otherwise covers new homes, additions/remodels, garages, carports, pools, accessory structures, driveways, fill, and on-site sewage systems; municipal rules apply inside incorporated cities.

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

    Request development inspections through the Harris County ePermits Inspection Request portal by entering the permit number, or contact Development Inspections at 713-274-3924. Residential builders or qualified third-party inspectors must record foundation, framing/mechanical, and final inspection results in the county Residential Building Code Inspection System. For septic inspections, the licensed installer must give at least 24 hours' notice through the online form or by phone at 713-274-3800; a valid septic permit and county-stamped approved plans are required.

  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 ↗Permit portalOpen 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 Harris County

Who handles permitting for this jurisdiction?

Harris County Office of the County Engineer, Development Services & Permits Division 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?

Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact Permits main: 713-274-3900; Residential: 713-274-3920; Development Inspections: 713-274-3924; septic inspection questions: 713-274-3800.

How long might review take?

Residential construction and OSSF plan review: 30 business days. Published processing times vary by permit type; for example, sign permits list 3-5 business days. Harris County states that it does not offer expedited review, except possible case-by-case coordination for emergencies.

How are inspections scheduled?

Request development inspections through the Harris County ePermits Inspection Request portal by entering the permit number, or contact Development Inspections at 713-274-3924. Residential builders or qualified third-party inspectors must record foundation, framing/mechanical, and final inspection results in the county Residential Building Code Inspection System. For septic inspections, the licensed installer must give at least 24 hours' notice through the online form or by phone at 713-274-3800; a valid septic permit and county-stamped approved plans are required.

Which codes and exemptions should I review?

In unincorporated Harris County, single-family and duplex construction permitted on or after September 1, 2009 is subject to Harris County Residential Building Code Standards and the residential inspection-notification system; county materials identify the 2006 International Residential Code or the code applicable in the county seat under Texas Local Government Code Chapter 233. Commercial/public buildings and multifamily dwellings of four or more units are governed by the Harris County Fire Code Regulations effective October 1, 2025. Floodplain development, civil/site work, stormwater, driveway, OSSF, and other county regulations also apply according to project scope. No county demolition permit is required for demolition work in unincorporated Harris County, although later construction or development requires a permit. A residential fence outside a Special Flood Hazard Area does not require a county permit. These are narrow exemptions: the county's residential application otherwise covers new homes, additions/remodels, garages, carports, pools, accessory structures, driveways, fill, and on-site sewage systems; municipal rules apply inside incorporated cities.

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.