Cameron County runs a full building department, which makes it one of the most capable county permitting operations in Texas. The Building Permits Division, housed within the Department of Transportation at 1390 W. Expressway 83 in San Benito, enforces current building codes and processes and issues permits for residential and commercial construction including mechanical, plumbing, and electrical installations.
That reach is genuinely unusual. Most Texas counties cannot regulate residential construction at all; Cameron provides building inspection and site development review services for all private and public development in unincorporated areas, and a building permit is required for all construction there.
Layered on top is windstorm. Cameron is a first-tier designated catastrophe county, so TDI construction standards and WPI-8 certification govern insurability on exterior scope throughout the county — in the unincorporated areas and inside Brownsville, Harlingen, and South Padre Island alike.
Covers unincorporated Cameron County. Brownsville, Harlingen, San Benito, Los Fresnos, Port Isabel, and South Padre Island run their own building departments — though windstorm requirements apply across all of them because the whole county is first-tier. Confirm the parcel before filing.
A building permit is required for all construction in unincorporated Cameron County. That is a genuine county building program with plan review, MEP permitting, and inspection — not the floodplain-and-septic-only arrangement most Texas counties run. Do not carry assumptions here from a rural county elsewhere in the state.
What requires a county permit in Cameron County?
Cameron County publishes comprehensive rules and regulations for developing land and building structures in unincorporated areas, and enforces current building codes through its Building Permits Division. The threshold is broad: all construction requires a permit.
The department also oversees mapping, land development, and engineering alongside residential and commercial permitting, so site development review and platting run through the same office as the building permit.
County permit required
- All construction in unincorporated Cameron County
- Residential and commercial building permits
- Mechanical, plumbing, and electrical installations
- Roofing and exterior envelope work — also windstorm-certifiable
- Windows, entry doors, garage doors, and shutters
- Solar panel installation — also within windstorm certification scope
- Site development and land development review
- Platting applications
Outside county jurisdiction
- Work inside Brownsville, Harlingen, San Benito, Los Fresnos, Port Isabel, or South Padre Island
- Windstorm certification itself — that is a TDI process, not a county permit
- Utility interconnection — handled by the serving utility
- Trade licensure — issued by TDLR and the TSBPE at state level
Cameron County building department: who handles permitting
The Building Permits Division sits within the Cameron County Department of Transportation, whose divisions collectively manage planning, design, and construction of roads, bridges, and development in the county. The department oversees mapping, residential and commercial permitting, land development, and engineering.
One of the division’s primary responsibilities is enforcement of current building codes including all safety issues, alongside processing and issuing permits for residential and commercial construction as it pertains to mechanical, plumbing, and electrical installations. A Right of Way Division handles ROW acquisition and support.
| Detail | Information |
|---|---|
| Authority | Cameron County Department of Transportation — Building Permits Division |
| Office | 1390 W. Expressway 83, San Benito, TX 78586 |
| Phone | (956) 247-3500 |
| County Engineer | Benjamin L. Worsham, P.E. |
| Assistant County Engineer | Anthony Cantu, P.E. |
| Online portal | County portal for permit applications, inspections, platting, and payments |
| Scope | Residential and commercial permitting including mechanical, plumbing, and electrical |
| Windstorm authority | Texas Department of Insurance — Cameron County is first-tier |
The county publishes comprehensive rules and regulations for development and building in unincorporated areas, plus a summary guide to them. Read the summary before the first submittal — this is a county with real requirements, and working them out through correction cycles is expensive.
Cameron County permits: record types and what each covers
Cameron County breaks the Texas county pattern more completely than any jurisdiction in this series. It requires a building permit for all construction in unincorporated areas, issues residential and commercial permits, and processes mechanical, plumbing, and electrical permits itself. The record types below are a genuine building department’s, not a floodplain office’s.
What Cameron County actually issues
| Record | What triggers it | Who administers it | Notes |
|---|---|---|---|
| OSSF permit to construct | Installing, altering, repairing, or extending an on-site sewage facility where no public sewer is available | Cameron County Environmental Health | Required statewide; soil evaluation by a licensed site evaluator is part of the application |
| OSSF license to operate | Issued after the permit to construct requirements are met and the system passes inspection | Cameron County Environmental Health | Also triggered on transfer of ownership of an existing system |
| Floodplain development permit | Placing fill, setting a structure, or developing in or near a mapped special flood hazard area | County floodplain administrator | Substantial improvement and substantial damage rules attach to existing structures |
| Subdivision plat | Dividing land in the unincorporated county | Commissioners Court and county engineering | Road, drainage, and access standards apply |
| 911 address assignment | New structures and new access points needing an address | County addressing / emergency management | Usually a prerequisite for utility service |
| Right-of-way and driveway culvert | New or modified access onto a county road | County road and bridge / precinct | Culvert sizing set by drainage conditions |
| Water well registration | Drilling a water well | the applicable groundwater conservation district | Groundwater districts operate independently of the county |
| Mechanical, plumbing, and electrical permits | MEP installations on residential and commercial construction | Building Permits Division | Processed and issued by the county, unusual among Texas counties |
| Site development review | Private and public development in unincorporated areas | Department of Transportation | Runs alongside building inspection services |
| Platting application | Subdividing land in the unincorporated county | Department of Transportation | Submitted and tracked through the county online portal |
| Ch. 233 commercial / multifamily | New commercial, public-accessible, or multifamily buildings, and substantial improvements, where the county has adopted the authority | Commissioners Court | Scope is set by county order; confirm adoption before assuming it applies |
County reaches this
- On-site sewage facilities, everywhere in the state
- Floodplain development and substantial improvement
- Subdivision of land and county road access
- Addressing, and fire code where separately adopted
County generally does not
- Issue residential building permits in unincorporated areas
- Conduct residential construction inspections
- Issue a residential certificate of occupancy
- Enforce a residential building code absent a county order adopting one
Solar permits in Cameron County
In unincorporated Cameron County there is generally no county building permit for a residential rooftop or ground-mount photovoltaic system, because the county does not regulate residential construction. That is a jurisdictional fact rather than a green light: the electrical work still has to be performed by a TDLR-licensed electrician to code, and the utility still governs interconnection.
Utility interconnection is the real gate. The interconnecting utility — the wires company in deregulated territory, or the electric cooperative serving the parcel in much of rural East Texas — runs its own application, engineering review, and Permission to Operate process, and it is not waived by the absence of a county permit.
Under Tex. Prop. Code §202.010 a property owners' association cannot prohibit a solar energy device outright, and any dedicatory provision that does is void — but the statute preserves the association's right to require prior architectural approval and to impose placement and appearance conditions. Approval cannot be unreasonably withheld.
Inside Brownsville city limits the picture changes completely: the city permits solar like any other municipality. The jurisdiction question is the first question.
Roofing permits in Cameron County
A residential roof covering replacement in unincorporated Cameron County generally does not require a county permit, for the same reason: Texas counties have no general authority over residential construction outside city limits.
Two things still apply. If the structure sits in a mapped special flood hazard area, the county floodplain ordinance can reach the work through substantial improvement rules — and cumulative improvement value is what triggers them, so a reroof after other recent work can cross the threshold on its own. And commercial or multifamily buildings can fall under the county's Ch. 233 authority where it has been adopted.
Texas has no statewide product approval system and no central listing to check a roofing product against. Hail is the governing risk across East Texas, and impact-resistant Class 3 and Class 4 shingles carry insurance premium credits from most carriers. Under Tex. Prop. Code §202.011 a property owners' association cannot prohibit wind or hail resistant shingles, or shingles that improve energy efficiency.
Cameron County is the southern tip of the Texas coast, and roofing here is an insurance question as much as a code question. The county permits the work; TDI certifies it; and the two run on different clocks.
Texas has no statewide building code and no statewide general contractor license. In the unincorporated county the practical compliance surface is the trades — TDLR for electrical and mechanical, the TSBPE for plumbing — plus the county's environmental and floodplain records, rather than a building department.
Cameron County permit cost and fees
Cameron County charges permit and inspection fees for residential and commercial construction, paid through the county online portal alongside the application. Because the county runs a genuine building program, the fee structure resembles a municipal one more than the record-by-record pricing typical of rural Texas counties.
Budget windstorm certification separately. WPI-8 is a TDI cost and a schedule item outside the county permit entirely, and on exterior scope it frequently determines when work can proceed.
| Fee component | How it works |
|---|---|
| Building permit | Residential and commercial; fee set by the county schedule |
| Mechanical / plumbing / electrical | Processed and issued by the county as separate permits |
| Inspection fees | Charged alongside the permit |
| Platting application | Submitted and tracked through the county portal |
| Windstorm certification | TDI process and cost, not a county fee |
| Work without a permit | A permit is required for all construction; penalties apply |
Planning a build in unincorporated Cameron County? Send us the parcel and scope and we’ll price the county permit set alongside a realistic windstorm sequence.
Cameron County trade permits
Unusually for a Texas county, Cameron processes and issues mechanical, plumbing, and electrical permits itself for residential and commercial construction. Contractors still hold state licences through TDLR and the TSBPE; the county permits and inspects the installation.
Electrical
Permitted and inspected by the county. Service and panel work, circuits, solar PV, and EV charging — performed by a TDLR-licensed electrician.
Plumbing
Permitted and inspected by the county. New plumbing, repipes, water heaters, fixtures, and gas piping — performed by a TSBPE-licensed plumber.
Mechanical / HVAC
Permitted and inspected by the county. Installations, changeouts, ductwork, and venting — performed by a TDLR-licensed mechanical contractor.
Windstorm-scope work
Roof coverings, vents and turbines, exterior wall coverings, skylights, windows and entry doors, garage doors, shutters, mechanical equipment, and solar panels.
Cameron County permit application: how to apply step by step
Check against Brownsville, Harlingen, San Benito, Los Fresnos, Port Isabel, and South Padre Island. All permit their own territory.
Cameron publishes comprehensive rules for developing land and building structures in unincorporated areas, plus a summary guide. Use them during design.
Prepare site plans and construction plans to the county’s requirements.
File at 1390 W. Expressway 83 or through the county online portal. Staff review for code compliance and completeness.
Pay permit and inspection fees and obtain the permit before beginning work.
Schedule county building inspections as phases complete, and arrange TDI windstorm inspection alongside construction rather than after it.
Inspections in Cameron County
Cameron County provides genuine building inspection services for private and public development in unincorporated areas, scheduled with the Building Permits Division. Inspections run across the trades because the county permits mechanical, plumbing, and electrical work.
The TDI windstorm inspection is separate and runs with a TDI-appointed engineer or qualified inspector. Because fastening and attachment details are concealed once the envelope closes, it has to be sequenced into construction rather than appended at the end.
Keep the permit and approved plans on site and clear correction notices before requesting a re-inspection.
Cameron County permit search and official resources
- Cameron County — Department of Transportation
- TDI — designated catastrophe areas
- Texas Department of Licensing and Regulation
- Texas State Board of Plumbing Examiners
Frequently asked questions
Who issues building permits in Cameron County?
No one, for general residential construction in unincorporated areas — Cameron County has no adopted residential building code and no building inspection program. The records that do apply are administered separately: on-site sewage through Cameron County Environmental Health, floodplain development through the county floodplain administrator, plats through Commissioners Court, and road access through the precincts. Inside Brownsville city limits, the city permits normally.
How do I get a permit in Cameron County?
Start by confirming the parcel is actually unincorporated, because that single question changes everything and a mailing address will not answer it. If it is, work the records the county does issue rather than looking for a building permit: septic first, since it constrains siting and carries the longest lead time, then floodplain, plat, addressing, and road access as the project triggers them.
What codes apply in Cameron County?
Texas has no statewide building code, and Cameron County has not adopted one for unincorporated areas, so no building code is enforced there. State rules still govern on-site sewage facilities, and the county’s floodplain ordinance governs development in mapped flood hazard areas. Trade work remains subject to state licensing through TDLR and the TSBPE. Inside city limits, the municipality’s adopted codes apply in full.
Does Cameron County issue building permits?
Yes, and comprehensively. A building permit is required for all construction in unincorporated Cameron County. The Building Permits Division within the Department of Transportation enforces current building codes, provides building inspection and site development review services for all private and public development in unincorporated areas, and processes and issues permits for residential and commercial construction including mechanical, plumbing, and electrical installations. That is far broader than most Texas counties.
Where do I file a Cameron County building permit?
With the Building Permits Division at 1390 W. Expressway 83 in San Benito, or through the county’s online portal, which handles permit applications, inspections, platting applications, and payment processing. Complete the residential or commercial permit packet, prepare site and construction plans, submit for review, pay permit and inspection fees, and obtain the permit before beginning work.
Does windstorm certification apply in unincorporated Cameron County?
Yes, countywide. Cameron is one of the fourteen first-tier designated catastrophe counties, so TDI windstorm construction standards and WPI-8 certification apply in the unincorporated areas exactly as they do inside Brownsville, Harlingen, or South Padre Island. Because most standard carriers exclude wind and hail here, TWIA eligibility is usually the binding constraint. The certificate comes from TDI, not the county, and a passed county inspection does not produce one.
Do I need a permit to install solar panels in Cameron County?
Yes. Photovoltaic installations in Cameron County are permitted under a dedicated solar record type reviewed on both a structural and an electrical track. Solar thermal — passive water and pool heating — is a separate record. Under Tex. Prop. Code §202.010 a homeowners' association cannot ban a solar energy device outright, but it may still require prior architectural approval and impose reasonable placement conditions, so run the HOA submittal alongside the permit. Since September 1, 2025, Tex. Local Gov't Code §247.0025 (SB 1202) also permits third-party plan review and inspection of home backup power installations — generators and energy storage for one- and two-family dwellings at 600 volts or less — in place of jurisdiction review. Utility interconnection and Permission to Operate still run in parallel.
Does a roof replacement require a permit in Cameron County?
Yes, in most cases. A roof covering replacement requires a permit in most Texas municipalities including Cameron County, though minor repairs can fall below the local threshold. Texas has no statewide product approval system and no central product listing, so compliance runs against the locally adopted code edition and its local amendments. Hail rather than wind is the governing risk inland, and Tex. Prop. Code §202.011 bars an HOA from prohibiting wind or hail resistant shingles.
What is the difference between a residential and a commercial permit in Cameron County?
In a Texas county it is the difference between no county jurisdiction and possible county jurisdiction. Residential construction in unincorporated Cameron County is largely outside county authority. New commercial, public-accessible, and multifamily buildings, plus substantial improvements, are the categories Local Government Code ch. 233 lets a county reach — but only where Commissioners Court has adopted that authority, so confirm it rather than assuming.
Do trade permits need to be pulled separately in Cameron County?
Not in unincorporated Cameron County — there is no county trade permit program and no county trade inspection. Electrical, plumbing, and mechanical work should still be performed by contractors licensed through TDLR and the TSBPE, and the septic connection is permitted and inspected separately. Inside city limits, trade permits work normally.
What happens if I file under the wrong permit type in Cameron County?
Because Cameron County does not run a building permit program, the more common failure is filing nothing at all — assuming that no building permit means no requirements, and missing the septic, floodplain, plat, or addressing record the project actually triggered. Those are enforced, and unwinding them after construction is materially harder than filing them in order.
Can I apply for all Cameron County permit types online?
Yes. Cameron County operates an online portal for submitting and tracking building permit applications, inspections, platting applications, and payment processing — which is more capability than most Texas counties offer. In-person filing at the San Benito office remains available. Windstorm certification runs on a separate TDI process outside the county portal.
Simplify Cameron County permitting with Alliance Permitting
A county that permits and inspects like a city, MEP records the county issues itself, and a windstorm certification process running on a separate authority — Cameron County asks more of a rural filing than almost any county in Texas. Alliance Permitting is a permit expediter for Cameron County: we run the county permit set and the windstorm track as one schedule.
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Alliance Permitting is a permit documentation and submission company: we prepare your paperwork, file it correctly, and coordinate with the authority having jurisdiction through issuance. We are not a contractor and do not perform licensed plan review or inspections; that work stays with your team and the jurisdiction.
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More Texas permitting guides
This guide is provided by Alliance Permitting for general informational purposes and reflects publicly available information believed accurate as of July 2026. Permit requirements, fees, and processes change; always confirm current details with Cameron County Department of Transportation — Building Permits Division before filing. This is not legal advice.