Cameron County runs a full building department, which is rare among Texas counties. 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, South Padre Island, and the county’s other incorporated cities and towns handle permitting inside their own limits — 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.
Short on time to read all of this?
Get a free quote →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.
In 2025, building permits issued in unincorporated Cameron County authorized 381 new privately owned housing units, 291 of them single-family homes, according to the U.S. Census Bureau Building Permits Survey.
Cameron County permits: record types and what each covers
Cameron County breaks the usual Texas county pattern. 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.
Not sure this scope needs a permit?
Get a free quote →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 Public Health (Environmental Health) | Required statewide; a site evaluation by a licensed site evaluator or engineer 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 Public Health (Environmental Health) | On a sale, the new owner should tell the permitting authority; TCEQ does not require an inspection |
| 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 buildings, public buildings and apartment buildings of four or more units, and substantial improvements, where the county has adopted a fire code | 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
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
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.
Rather talk it over?
Call 1-855-478-4290 →Texas has no single statewide building code and no general contractor licence: state law sets base codes and each city adopts its own edition and amendments, while most counties issue no building permits for homes outside city limits. The statewide solar, HOA and roofing rules are on the Texas page. Texas rules
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.
Rather not deal with the Cameron County building department?
Get a free quote →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?
Cameron County itself. The Building Permits Division of the Cameron County Department of Transportation, 1390 W. Expressway 83, San Benito ((956) 247-3500), enforces current building codes and issues residential and commercial building permits, including mechanical, plumbing, and electrical permits, for all construction in unincorporated areas. On-site sewage runs through Cameron County Public Health’s Environmental Health program, and platting through the Department of Transportation. Inside Brownsville city limits, the city permits normally.
Want this handled start to finish?
Get a free quote →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 county’s own records: check first whether the county permit described above applies, then septic, 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 14 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?
Ask the county first. Cameron County issues its own permits in unincorporated areas (see who handles permitting above), so confirm whether a solar job needs one. The electrical work must be done by a TDLR-licensed electrician, and the utility runs its own interconnection review and Permission to Operate. Inside a city, the city’s solar permit applies. Under Tex. Prop. Code §202.010, a homeowners' association cannot ban a solar energy device outright, but it may require prior architectural approval and impose reasonable placement conditions.
Inspections are where schedules slip.
Get a free quote →Does a roof replacement require a permit in Cameron County?
Ask the county first. Cameron County issues its own permits in unincorporated areas (see who handles permitting above), so confirm whether a reroof needs one; the county floodplain rules can also reach the work through substantial improvement. Inside a city, the city’s roofing permit rules apply. 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 most Texas counties. 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.