Most permit headaches on a commercial paving job start with one wrong assumption: that “Harris County” is the agency in charge. Harris County takes in dozens of incorporated cities plus a large unincorporated area, and the office that reviews your parking lot depends on which side of a city limit line your property sits. Get that answer first and the rest of the permit list gets much shorter.
This guide walks through the permits a commercial property owner, developer or facility manager is most likely to need for new paving, a lot expansion or a full replacement in Harris County. Fees and rules change, so treat it as a planning checklist and confirm the current requirements with the reviewing office before you schedule work.
Step One: Find Out Who Has Jurisdiction Over Your Lot
There are three common answers in our market:
- Inside the City of Houston. Paving permits run through the Houston Permitting Center and Houston Public Works.
- Unincorporated Harris County. The Harris County Office of the County Engineer (OCE) reviews and permits the work.
- Inside another city. Pasadena, Baytown, Deer Park, La Porte and the other cities in the county run their own permit offices. If you are planning work in one of them, our commercial paving in Pasadena, TX page covers the local picture for one of the busiest industrial corridors.
The county’s online “Information on my Address” map is a quick way to see where a property falls and whether it touches a mapped floodplain, which matters later in this list.
Unincorporated Harris County: What the County Engineer Reviews
The County Engineer is blunt about scope: a permit is needed for all development in unincorporated Harris County, and its definition of development names paving, grading, excavation, filling and even storage of equipment or materials. A new parking lot is development. So is a large expansion.
Minor Site Development or full Civil Development review
Smaller jobs may qualify for the county’s Commercial Minor Site Development review. Its list includes driveways and culverts in county right of way, resurfacing over existing paving, cut and fill, and paving that is not substantial. A project does not qualify if it sits in the floodplain, extends more than 150 feet inside the property or right-of-way line, or covers more than an acre. Those projects go to Commercial Civil Development review instead.
Civil Development plans route through five county groups: civil development, traffic, public review, Harris County Flood Control and stormwater quality. A typical submittal includes a site plan, grading plan, drainage plan, detention pond details, a stormwater pollution prevention plan, a paving plan, utilities and, when needed, a traffic control plan, all sealed by a licensed engineer. That is why the civil engineer, not the paving crew, usually carries the permit through review.
Timing and the cost of skipping it
The county states that it does not expedite plan reviews, so build review time into the schedule rather than hoping to shortcut it. Its commercial permit FAQ also says a permit must be used to start construction within 180 days of issue. Skipping the permit is the expensive option: under the county’s floodplain regulations, unpermitted development can lead to a Certificate of Non-Compliance filed in the property records, which can get in the way of a clean title when you sell or refinance.
If your project includes new drive approaches into a county road, those need a permit as well, and reconstructing pavement inside county right of way brings in the precinct for that area.
Inside Houston City Limits: The Private Paving Permit
For a lot inside the city, the Houston Permitting Center lists a Paving Permit for private property. As of November 2026 it requires plan review and inspection, stays valid for 180 days, and carries a fee of $94 for the first 1,000 square feet, $3.36 for each additional 1,000 square feet and a $33.56 administrative fee. On a 40,000 square foot lot that works out to roughly $259 in permit fees. The engineering and detention design behind the permit cost far more than the permit itself, which is the real reason to plan early.
Two related city reviews come up often. Work in a public street or alley needs a separate right-of-way paving permit with plans approved by the Office of the City Engineer. New or converted parking areas also go through a parking site plan review. Houston also updated its storm water detention criteria in Chapter 9 of its Infrastructure Design Manual in 2025, and claiming credit for existing hard surface generally requires a recent signed and sealed survey, so have your surveyor and engineer confirm what applies to your site.
The State Stormwater Permit Many Owners Miss
Separate from any city or county approval, the Texas Commission on Environmental Quality (TCEQ) regulates stormwater from construction sites that disturb one acre or more of soil under its Construction General Permit, TXR150000. The current permit took effect March 5, 2023 and runs to March 5, 2028.
- Less than 1 acre disturbed, and not part of a larger common plan of development: not covered by the general permit.
- 1 to less than 5 acres: a small construction site, which can be covered through TCEQ’s site notice option.
- 5 acres or more: a large construction site, which files a Notice of Intent through TCEQ’s online STEERS system.
Either way, the operator must have a Stormwater Pollution Prevention Plan in place before work starts. The trigger is acres of soil disturbed, not acres paved, so a lot expansion with heavy land grading or commercial excavation can cross the line even when the finished lot looks modest.
One timing note: as of November 2026, TCEQ has temporarily taken its STEERS filing system offline and expects it back in mid-November. In the meantime it is accepting construction general permit documents by email under a temporary waiver, so check the TCEQ construction stormwater page for the current filing route before you submit.
Floodplain and Detention: Where Houston Sites Get Complicated
In unincorporated Harris County, a property in the 500-year floodplain needs an elevation certificate with its development application, and the county compares the natural ground elevation to the base flood elevation to decide how the permit is handled. A site in the 100-year floodplain needs drawings from a Texas licensed engineer or architect, and no fill is allowed in a floodway.
Detention is where budgets move. Adding impervious cover usually means storing runoff on site, which is why detention and retention ponds and storm sewer installation so often show up on the same plan set as the asphalt. Houston aligned its detention standards with the county’s for plans submitted after March 31, 2021, so expect similar questions on either side of the city limit.
Accessibility Registration With TDLR
Parking lots are part of the accessible route, and Texas enforces that through the Texas Department of Licensing and Regulation (TDLR). For a project covered by the Texas Architectural Barriers Act with a total estimated cost of $50,000 or more, the project must be registered with TDLR and the construction documents reviewed. Projects under $50,000 skip registration but still have to meet the Texas Accessibility Standards, including the rules for accessible parking spaces and access aisles. Whether your facility is covered depends on Chapter 469 of the Government Code, so ask your design team early.
Accessible stalls, signs and slopes are a common punch-list item at final inspection. Our guide to ADA requirements for Houston parking lots and our parking lot striping in Houston service cover the layout side.
Fronting a State Highway? Add TxDOT
If a new or relocated driveway connects to a state highway, TxDOT issues the access driveway permit on its Form 1058, and the permit becomes void if the driveway is not built within six months of issue. Feeder roads along the major freeways are common examples in our area.
What to Have Ready Before You Call a Paving Contractor
- The property address and which jurisdiction it falls in
- Floodplain status from the county map, and an elevation certificate if one exists
- A recent boundary and topographic survey
- A rough idea of how much soil will be disturbed and how much new hard surface you are adding
- Any driveways that tie into a county road, a city street or a state highway
- Your estimated total project cost, for the TDLR question
- Your civil engineer’s contact, if one is already on the project
With that list in hand, a contractor can price the work against the actual permitted scope instead of guessing, and you avoid the most common surprise on commercial jobs: a plan set that changes after bids are in.
Plan the Permits and the Pavement Together
American Paving has built commercial lots across Houston and Harris County since 1984, and the projects that run on schedule are the ones where grading, drainage and paving are planned as one job. Our site preparation services, commercial asphalt paving and concrete construction crews work from the same plan set your engineer permits. To talk through your project, call 281-328-8296 or request a free estimate.
Harris County Paving Permits: FAQs
Do I need a permit to repave a parking lot in Harris County?
In unincorporated Harris County, the County Engineer requires a permit for all development, and its definition includes paving. Resurfacing over existing paving may qualify for the simpler Minor Site Development review. Inside Houston, private property paving needs a city paving permit with plan review and inspection. Other cities in the county have their own rules.
How long does Harris County take to review commercial paving plans?
The county does not publish a fixed review time and states that it does not expedite reviews. Civil Development plans route through five groups, so a complete, engineer-sealed submittal is the best way to avoid extra review cycles.
When does a parking lot project need a TCEQ stormwater permit?
When construction disturbs one acre or more of soil, or is part of a larger plan that will. Sites disturbing 1 to less than 5 acres can use TCEQ’s site notice option. Sites of 5 acres or more file a Notice of Intent. Both need a Stormwater Pollution Prevention Plan before work starts.
How much is a City of Houston paving permit?
As of November 2026, the Houston Permitting Center lists $94 for the first 1,000 square feet, $3.36 for each additional 1,000 square feet and a $33.56 administrative fee for paving on private property. Confirm the current fee with the city before you budget.
Does my parking lot project need TDLR registration?
If the facility is covered by the Texas Architectural Barriers Act and the total estimated project cost is $50,000 or more, the project must be registered with TDLR. Smaller projects skip registration but still have to meet the Texas Accessibility Standards.
- Harris County Paving Permits: What a Commercial Property Owner Actually Needs - November 9, 2026
- Commercial Asphalt Parking Lot Construction - October 29, 2026
- Land Grading 101: Why Proper Grading Prevents Costly Problems Later - October 22, 2026