Grayson County has no zoning regulations for unincorporated areas — with two specific exceptions. The Lake Ray Roberts Zoning District and the North Texas Regional Airport Zoning Regulation apply where they reach, and nowhere else in the unincorporated county does county zoning exist.
That is a genuinely unusual arrangement. Texas counties generally have no zoning authority at all, so a county operating two named zoning districts is exercising a specific, limited power — lake-area development control and airport hazard regulation — rather than general land use control.
Beyond those two districts, Grayson County follows the usual Texas county pattern for homes: no building permit, no building code, and no construction inspection for single-family houses in unincorporated areas. New commercial, public, and multifamily buildings of four units or more are different: the Fire Marshal’s Office requires a building permit, inspects the work, and issues a certificate of compliance. On-site sewage, floodplain, platting, addressing, and road access are the other records that apply.
Covers unincorporated Grayson County. Sherman, Denison, Van Alstyne, Howe, Whitesboro, Pottsboro, Gunter, and the county’s other towns permit their own territory — confirm whether the parcel is inside a city limit, or inside one of the two county zoning districts, before assuming general county rules apply.
Two zoning districts, and only two. Grayson County has no zoning regulations for unincorporated areas outside the Lake Ray Roberts Zoning District and the North Texas Regional Airport Zoning Regulation. If your parcel falls inside either, county zoning applies and the rules are different — check the county’s published zoning documents and boundary map before designing.
What requires a county permit in Grayson County?
The question in unincorporated Grayson County is first whether the parcel sits inside one of the two county zoning districts, and then which environmental and land records the project triggers.
Grayson sits on the Oklahoma line north of the metroplex, with Sherman and Denison as the twin centres and Lake Texoma and Lake Ray Roberts shaping development on the water. Growth pressure from the north metroplex has reached this county, so city limits and ETJs have moved.
Still required
- On-site sewage facility permitting through Development Services
- Licensed site evaluation as part of the OSSF application
- Compliance with the Lake Ray Roberts Zoning District where it applies
- Compliance with the North Texas Regional Airport Zoning Regulation where it applies
- Floodplain development where the parcel touches a mapped hazard area
- Subdivision plat when land is divided
- 911 address assignment for new structures
- Driveway or culvert access onto a county road
Not required by the county
- County building permit — not issued
- County building code compliance — none adopted
- County zoning outside the two named districts
- County construction inspections and certificate of occupancy
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Get a free quote →Grayson County building department: who handles permitting
Grayson County Development Services administers on-site sewage permitting, the floodplain development permit, the county’s zoning districts, and right-of-way permits, and requires a Development Certificate for new E911 addresses, new culverts and floodplain determinations. Subdivision platting follows the county Subdivision Regulations through Commissioners Court.
The county publishes its zoning documents and a map showing the Lake Ray Roberts and airport zoning boundaries, which is the right place to start on any parcel near either.
| Detail | Information |
|---|---|
| Building permits | Not issued — no county building code for unincorporated areas |
| Zoning | None in unincorporated areas outside two named districts |
| Lake Ray Roberts Zoning District | County zoning applies within the district boundary |
| North Texas Regional Airport | Airport Zoning Regulation applies within its boundary |
| OSSF / septic | Grayson County Development Services |
| Zoning documents and map | Published by Development Services |
| County seat | Sherman; Denison is the other principal city |
| Inside city limits | Sherman, Denison, Van Alstyne, Howe, Whitesboro, Pottsboro, Gunter |
Check the county zoning map first if the parcel is near Lake Ray Roberts or the North Texas Regional Airport. Outside those two boundaries, county zoning simply does not exist — but inside them it governs, and the difference is not visible from the road.
Grayson County permits: record types and what each covers
The permit-type question works differently in a Texas county, and Grayson adds a wrinkle. There is no county building permit and no county building code, and no zoning in unincorporated areas outside the Lake Ray Roberts Zoning District and the North Texas Regional Airport Zoning Regulation. The records below are what applies generally, plus those two district overlays.
Not sure this scope needs a permit?
Get a free quote →What Grayson 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 | Grayson County Development Services | 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 | Grayson County Development Services | 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 |
| 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 Grayson County
Inside Sherman city limits the picture changes completely: the city permits solar like any other municipality. The jurisdiction question is the first question.
Roofing permits in Grayson County
Grayson County sits on the Oklahoma line north of the metroplex in the North Texas hail belt, roughly 105 mph ultimate design wind speed under the codes regional cities adopt, far from the designated catastrophe area and outside any TDI windstorm requirement. Hail governs.
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
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Call 1-855-478-4290 →Grayson County permit cost and fees
Grayson County charges no building permit fees because it issues no building permits. Costs attach to on-site sewage permitting and its site evaluation, floodplain permitting, platting, and road access.
Inside the two zoning districts, expect design constraints rather than fees to be the cost driver — particularly on airport-adjacent land where height limits can reshape a building.
| Fee component | How it works |
|---|---|
| Building permit | None — not issued by the county |
| OSSF permit | County fee plus licensed site evaluation and system design |
| Zoning compliance | Applies only within the Lake Ray Roberts and airport districts |
| Floodplain development | County fee where applicable |
| Subdivision plat | Filing and review fees, plus survey and engineering |
| Road access / culvert | Precinct fee plus materials and installation |
Planning a build in unincorporated Grayson County? Send us the parcel and scope and we’ll confirm whether either zoning district reaches it and map the records that apply.
Grayson County trade permits
There is no county trade permit program in unincorporated Grayson County. Electrical, plumbing, and mechanical work is neither permitted nor inspected by the county. On-site sewage is the exception and it is permitted and inspected.
Electrical
No county permit or inspection. A TDLR-licensed electrician remains the standard, and TDLR retains enforcement authority in unincorporated areas.
Plumbing
No county permit for interior plumbing. The septic system is permitted through Development Services with a licensed design behind it.
Mechanical / HVAC
No county permit or inspection. TDLR licensure applies to the contractor regardless of whether a permit exists.
Inside a city limit
Sherman, Denison, and the other municipalities permit and inspect trades normally. Jurisdiction determines everything.
Rather not deal with the Grayson County building department?
Get a free quote →Grayson County permit application: how to apply step by step
Check against Sherman, Denison, Van Alstyne, Howe, Whitesboro, Pottsboro, Gunter, and the county’s other towns, and their ETJs.
Use the county zoning map to determine whether the parcel falls inside the Lake Ray Roberts Zoning District or the North Texas Regional Airport Zoning Regulation.
Soil testing on the specific parcel is required for OSSF permitting and determines system type and house siting.
File with Development Services. Aerobic systems carry continuing maintenance obligations under state rules.
Determine flood hazard status, work platting through Commissioners Court if dividing land, obtain a 911 address, and permit driveway access.
With no county code or inspection outside the zoning districts, build to a recognised code edition anyway and keep your own records.
Inspections in Grayson County
Grayson County performs no residential construction inspections in unincorporated areas. There is no foundation, framing, rough-in, or final building inspection, and no county certificate of occupancy.
On-site sewage installations are inspected as part of the permitting process, and aerobic systems carry continuing maintenance obligations under state rules after the permit issues.
Private third-party inspection is worth considering on a new build. In a county that performs no building inspection, it is the only independent construction record a lender, insurer, or future buyer will have.
Grayson County permit search and official resources
- Grayson County — Development Services
- TCEQ — on-site sewage facilities for homeowners
- Texas Department of Licensing and Regulation
Frequently asked questions
Who issues building permits in Grayson County?
For single-family homes, no one: Grayson County does not require building permits or issue certificates of occupancy for single family residential structures in unincorporated areas. The Fire Marshal’s Office requires a building permit for new commercial, public, and multifamily buildings of four units or more. On-site sewage, floodplain development, addressing, culverts and right-of-way run through Grayson County Development Services (main county line (903) 813-4200), and plats through Commissioners Court. Inside Sherman city limits, the city permits normally.
How do I get a permit in Grayson 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.
Want this handled start to finish?
Get a free quote →What codes apply in Grayson County?
Texas has no statewide building code, and Grayson 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.
Is there zoning in unincorporated Grayson County?
Only in two places. Grayson County does not have any zoning regulations for the unincorporated areas of the county outside the Lake Ray Roberts Zoning District and the North Texas Regional Airport Zoning Regulation. Within those two boundaries, county zoning applies. Everywhere else in unincorporated Grayson County there is none. The county publishes zoning documents and a map showing the boundaries.
Does Grayson County issue building permits?
Not for homes. Grayson County does not require building permits for single-family residential structures in unincorporated areas and does not issue certificates of occupancy. The Fire Marshal’s Office does require a building permit for new commercial, public, and multifamily buildings of four units or more. On-site sewage permitting through Development Services, floodplain requirements, subdivision platting, addressing, and county road access are the other records that apply — alongside zoning compliance where one of the two county districts reaches the parcel.
What about property inside Sherman or Denison?
Then the county guidance does not apply. Sherman is the county seat and Denison the other principal city, and both permit and inspect construction inside their limits as normal municipal building departments — as do Van Alstyne, Howe, Whitesboro, Pottsboro, and Gunter. Growth pressure from the north metroplex has pushed city limits and ETJs outward in recent years, so confirm the parcel against current boundaries rather than relying on a mailing address.
Do I need a permit to install solar panels in Grayson County?
Usually not from the county in unincorporated Grayson County: Texas counties generally do not issue residential building permits, so there is normally no county solar permit. The electrical work must still 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.
Does a roof replacement require a permit in Grayson County?
Usually not from the county in unincorporated Grayson County: Texas counties generally do not issue residential building permits, so a reroof normally needs no county permit, though the county floodplain rules can still 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.
Inspections are where schedules slip.
Get a free quote →What is the difference between a residential and a commercial permit in Grayson County?
In a Texas county it is the difference between no county jurisdiction and possible county jurisdiction. Residential construction in unincorporated Grayson 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 Grayson County?
Not in unincorporated Grayson 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 Grayson County?
Because Grayson 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 Grayson County permit types online?
Partly. Grayson County Development Services publishes its applications, fee schedule, zoning documents and maps online and takes OSSF applications through the MyPermitNow portal; other records, such as the Development Certificate for addresses and culverts, are form-based. Confirm current requirements with the department directly before assembling a package.
Simplify Grayson County permitting with Alliance Permitting
A county with no zoning except two specific districts, no building permit, and a septic process that governs siting — Grayson rewards checking the map before the design. Alliance Permitting is a permit expediter for Grayson County: we confirm jurisdiction and district applicability first, then run the records in order.
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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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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 Grayson County Development Services before filing. This is not legal advice.