Plumbing Permit in Harris County, Texas
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Issued byHarris County Office of the County Engineer, Permits Division (formerly the Harris County Engineering Department)
By Mario Bailey, verified against official sources
Quick answer
Harris County publishes no plumbing permit for homes and no statement that none is needed. The county does permit and inspect on-site sewage (septic) systems through its Wastewater group and approves private water wells, but those are not plumbing permits for work inside a house.
Applying yourself? Start with the office.
What a plumbing permit costs in Harris County
How Harris County compares in Texas
No Texas jurisdiction we have verified sets a size threshold for this permit, so what actually differs between them is the fee.
| Jurisdiction | Permit needed? | Typical fee |
|---|---|---|
| Arlington | Permit required | ..."Per Trade - Commercial and Residential New Construction Permits... |
| Austin | Permit required | Plumbing trade permit base fee is $200.43, per the FY2025-26 DSD residential... |
| Corpus Christi | Permit required | FY 2026 Development Fee Schedule, Plumbing Permits: Residential $0.075 per... |
| Dallas | Permit required | ...schedule (Table B-I), value of work times 0.009652 times 1.33 with a $175... |
| El Paso | Permit required | (non-refundable)" is "$110 plus applicable technology fee," plus per-fixture... |
| Fort Worth | Permit required | ...Schedule of Plumbing Fees, Table 1-I: first fixture or appliance $9.85... |
| Harris Countythis page | Not confirmed | Not published |
How to apply in Harris County
In Harris County, you apply for a residential plumbing permit at your local building department by filing an application that describes the scope of work and site, along with construction documents, before any regulated plumbing installation, alteration, or repair begins. Minor repairs that do not touch piping or fixtures are generally exempt, and once issued the permit only stays valid if work is started within its time limit.
What most plumbing permit applications include:
- For Harris County, a permit is required before any owner or authorized agent constructs, alters, repairs, removes, converts, or replaces a plumbing system regulated by the code (IRC R105.1).
- For Harris County, the application must identify and describe the work, describe the site, state the intended use and occupancy, and be signed by the applicant or an authorized agent (IRC R105.3).
- Two or more sets of construction documents must accompany the application, drawn with enough clarity to show the location, nature, and extent of the proposed plumbing work and how it will conform to code (IRC R106.1, R106.1.1).
- Minor plumbing repairs, such as clearing a stoppage or removing and resetting a water closet without rearranging pipes or fixtures, are exempt from permit (IRC R105.2).
- Once issued, a permit is only valid for a limited window, commonly 180 days, and becomes invalid if the work is not started or is abandoned within that time, though extensions can be requested (IRC R105.3.2, R105.5).
General submittal guidance from 2021 International Residential Code (IRC), Chapter 1 Scope and Administration, Sections R105 Permits and R106 Construction Documents. Source. Harris County Office of the County Engineer, Permits Division (formerly the Harris County Engineering Department) sets the exact checklist for Harris County.
Where to apply in Harris County:
Harris County Office of the County Engineer, Permits Division (formerly the Harris County Engineering Department)
- 1111 Fannin St., 1st Floor Lobby, Houston, TX 77002
- Phone: (713) 274-3900
- Email: Residential@harriscountytx.gov
Plumbing Permit in Harris County compared with nearby Texas localities
| Locality | Permit needed? | Threshold | What each Texas schedule says | Verified |
|---|---|---|---|---|
| Harris County | Not confirmed | Not confirmed | Not published | |
| Arlington | Permit required | Any size | ...Permits: "Per Trade - Commercial and Residential New Construction Permits $100.00"... | |
| Austin | Permit required | Any size | Plumbing trade permit base fee is $200.43, per the FY2025-26 DSD residential fee... | |
| Corpus Christi | Permit required | A plumbing permit is needed to install a gas or electric water heater, add water lines, connect to sewer lines, extend or alter gas pipe systems, install or replace a drain or vent, or install an irrigation system or backflow preventer; stopping and repairing leaks, clearing drain stoppages, and removing and reinstalling a plumbing fixture without modifications are excluded. | FY 2026 Development Fee Schedule, Plumbing Permits: Residential $0.075 per square foot... | |
| Dallas | Permit required | Any size | ...Repairs schedule (Table B-I), value of work times 0.009652 times 1.33 with a $175... |
Inspections and closing out your permit
In Harris County, plumbing inspections are timed to whatever is about to hide the pipe: underground and under-slab piping is checked before concrete covers it, rough-in piping is pressure or water tested before walls close up, and a final inspection checks every fixture and backflow protection once the work is complete.
- In Harris County: piping and equipment placed under a slab or floor must be in place and inspected before any concrete is poured or floor sheathing is installed over it (IRC R109.1.1.1).
- In Harris County: rough plumbing, along with the mechanical, gas, and electrical rough-in, must be inspected prior to covering or concealment and before fixtures or appliances are set (IRC R109.1.2).
- In Harris County: rough drain, waste, and vent (DWV) piping is tested with water, air, or (for plastic piping) a vacuum, and must show no evidence of leakage before it is closed in (IRC P2503.5.1).
- In Harris County: the water-distribution piping is tested and must hold tight under the system's working pressure, or under a 50 psi air test for non-plastic piping, before it is concealed (IRC P2503.7).
- In Harris County: the framing inspection cannot proceed until the plumbing rough inspection, along with the mechanical and electrical rough inspections, has been approved (IRC R109.1.4).
- In Harris County: at the final drainage test, each fixture is filled and then drained, and its traps and fixture connections must prove watertight by visual inspection (IRC P2503.5.2).
- In Harris County: final inspection is made after all work required by the permit is complete, and includes confirming backflow protection, such as vacuum breakers on hose bibbs, is installed (IRC R109.1.6, P2902.4.3).
Schedule each inspection in advance and pass the final before you use the work or close the permit. Request inspections through the Harris County permit portal or by phone at (713) 274-3900.
Inspection sequence from 2021 International Residential Code (IRC), Section R109 Inspections and Section P2503 Inspection and Tests. Source. An open permit left un-inspected can surface later in a title search or home sale.
Your Plumbing Permit checklist for Harris County
- Confirm the requirement. Not confirmed, contact the office.
- Budget the fee. Check the official fee schedule for current amounts.
- Apply. In Harris County, you apply for a residential plumbing permit at your local building department by filing an application that describes the scope of work and site, along with construction documents, before any regulated plumbing installation, alteration, or repair begins. Minor repairs that do not touch piping or fixtures are generally exempt, and once issued the permit only stays valid if work is started within its time limit. Start at the Harris County permit portal.
- Keep the office details handy. Harris County Office of the County Engineer, Permits Division (formerly the Harris County Engineering Department). Phone: (713) 274-3900. Address: 1111 Fannin St., 1st Floor Lobby, Houston, TX 77002.
- Plan for inspections. In Harris County, plumbing inspections are timed to whatever is about to hide the pipe: underground and under-slab piping is checked before concrete covers it, rough-in piping is pressure or water tested before walls close up, and a final inspection checks every fixture and backflow protection once the work is complete.
Compiled from the official sources on this page. Last checked .
Frequently asked questions
- Do you need a plumbing permit in Harris County?
- Harris County publishes no plumbing permit for homes and no statement that none is needed. The county does permit and inspect on-site sewage (septic) systems through its Wastewater group and approves private water wells, but those are not plumbing permits for work inside a house. Always confirm with the Harris County Office of the County Engineer, Permits Division (formerly the Harris County Engineering Department) before starting.
- How much does a plumbing permit cost in Harris County?
- Fees are set by Harris County and are not published here. See the official fee schedule for current amounts.
- Where do you apply for a plumbing permit in Harris County?
- You can apply through the Harris County permit portal or contact the Harris County Office of the County Engineer, Permits Division (formerly the Harris County Engineering Department) directly. The links are listed on this page.
- Can a homeowner pull a plumbing permit themselves in Harris County?
- Under Texas law (Tex. Occupations Code 1305.003(a)(6), 1301.051; Tex. Local Government Code 233.157(c)): Texas licenses individual construction trades rather than general contractors, so no state statute requires a license to act as your own general contractor on your own house. For electrical work, the state licensing law does not apply to work performed in or on a dwelling by a person who owns and resides in it, but only where no municipal ordinance specifically regulates that work, so city electrical licensing and permit rules still control inside city limits (Occupations Code 1305.003(a)(6)). For plumbing, a property owner does not need a state license to perform plumbing in the owner's homestead (Occupations Code 1301.051). In opt-in counties' unincorporated areas, an individual who builds their own house or acts as their own contractor is exempt from the Class C misdemeanor penalty for inspection notice failures if they intend to use the home as their primary residence (Local Government Code 233.157(c)). None of these exemptions waive local permit or inspection requirements where they apply. Confirm how Harris County applies this before you apply.
From the Library
What else needs a permit in Harris County
Every other permit type we have verified for this jurisdiction, with the rule that applies here.
OCE Permits Fee Schedule (effective 10/01/2025), Residential Development, "Accessory Structures - All Other Structures (paving, storage sheds, pools, Additions and remodels, etc.)": Permit Fee $35.00, for every permit type below. The fee column shows what differs by project.
| Project | Permit needed? | Threshold | Typical fee |
|---|---|---|---|
| Fence Permit | It depends | location of the fence inside or outside the special flood hazard area (floodplain); no height or length trigger is published | Inspection Fee $0.00 outside the SFHA or $73.00 inside the SFHA |
| Patio Permit | Permit required | Any size | Inspection Fee $0.00 outside the SFHA or $73.00 inside the SFHA |
| Pool Permit | Permit required | Any size | Inspection Fee $0.00 outside the SFHA or $73.00 inside the SFHA |
| Shed Permit | It depends | floor area of a residential accessory building or structure; the size exclusion does not apply in A or V flood zones | Inspection Fee $0.00 outside the SFHA or $73.00 inside the SFHA |
Plumbing Permit in other Texas localities
Everything above, sourced
Code references
National and state model-code sections the general guidance on this page is drawn from. They are not Harris County documents; the office above sets the local rules.
How this plumbing permit page for Harris County was verified. 1 official source: oce.harriscountytx.gov; fee schedule: official document. Last checked by Mario Bailey, not confirmed with Harris County Office of the County Engineer, Permits Division (formerly the Harris County Engineering Department). Rules change; confirm before you build. How we verify.
Last checked: Report an error on this page
Compare Plumbing Permit requirements across Texas localities