A Fort Bend County building permit runs on two tracks. The Engineering Department issues Development Permits for all unincorporated areas, and the Fire Marshal is the authority having jurisdiction for fire alarm and fire protection systems. We file and track both for you.
The residential threshold is lower than most people expect. A Residential Development Permit is required for the construction of any new structure on residential property, or addition to an existing structure, that meets or exceeds 400 square feet. Applications go through mgoconnect.org.
A Commercial Development Permit is required for all commercial development, and before applying, the County Engineer must first review and approve a set of civil construction drawings. That sequencing catches commercial applicants who assume the permit application comes first.
Covers unincorporated Fort Bend County. Sugar Land, Missouri City, Richmond, Rosenberg, Katy, Stafford, Fulshear, and the county’s other cities permit their own territory — confirm whether the parcel is inside a city limit or an extraterritorial jurisdiction before assuming county rules apply.
The 400 square foot threshold catches barns, garages, and slabs. A permit is required for construction of any fully enclosed structure or concrete slab — including modification of an existing building — equal to or larger than 400 square feet, including barns, garages, workshops, and storage buildings. It applies to the slab as well as the structure.
What requires a county permit in Fort Bend County?
Fort Bend County is one of the Texas counties that genuinely permits, but only within the categories state law allows. Local Government Code ch. 233 reaches new commercial, public-accessible, and multi-family buildings and substantial improvements — it does not extend to ordinary single-family residential construction.
Alongside that sit the environmental and land records every Texas county administers: on-site sewage facility permitting, floodplain development, subdivision platting, addressing, and county road access.
County record required
- Residential Development Permit — structures and additions of 400 sq ft or more
- Commercial Development Permit — all commercial development
- Fully enclosed structures or concrete slabs of 400 sq ft or more, including modifications
- Any work within a floodplain or Special Flood Hazard Area
- Development including mining, dredging, filling, grading, paving, excavation, or drilling
- Storage of equipment and materials
- Fire alarm and fire protection system plans — Fire Marshal
- On-site sewage, platting, addressing, and county road access
Outside county building authority
- County building permit for ordinary single-family residential construction
- County residential certificate of occupancy
- County trade permits of the municipal kind for residential work
- Work inside a city limit — Sugar Land, Missouri City, Richmond, Rosenberg, Katy, Stafford, Fulshear, and the county’s other cities permit independently
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Get a free quote →Fort Bend County building department: who handles permitting
The Fort Bend County Engineering Department issues Development Permits for all unincorporated areas, and also holds inter-local agreements with Kendleton, Thompsons, Fairchilds, and Pleak for the issuance of Development Permits — so a city address does not automatically mean the county is out of scope.
The Fire Marshal’s Office is the authority having jurisdiction for unincorporated areas. It reviews plans for site and civil work, construction, mechanical, electrical, and plumbing, and fire alarm and fire protection systems in new and existing facilities. Since October 1, 2023 unincorporated Fort Bend County has used the 2021 International Fire Code with related local amendments and the Fort Bend County Fire Code.
| Detail | Information |
|---|---|
| Development permits | Fort Bend County Engineering Department — all unincorporated areas |
| Residential threshold | New structure or addition meeting or exceeding 400 square feet |
| Commercial | All commercial development; County Engineer approves civil drawings first |
| Apply online | mgoconnect.org — MyGovernmentOnline customer portal |
| Fire Marshal | Fort Bend County Fire Marshal’s Office — 281-238-1500 |
| Fire permits portal | FBCFMOpermits.com |
| Fire Code | 2021 International Fire Code with local amendments, from 1 October 2023 |
| Inter-local agreements | The county issues Development Permits for Kendleton, Thompsons, Fairchilds, and Pleak by agreement |
Through the MyGovernmentOnline customer portal you may also need to request release of electric service or update the physical address for your permit — two steps that sit inside the portal and are easy to miss at close-out.
In 2025, building permits issued in unincorporated Fort Bend County authorized 7,107 new privately owned housing units, 5,673 of them single-family homes, according to the U.S. Census Bureau Building Permits Survey.
Fort Bend County permits: record types and what each covers
Fort Bend County exercises real permitting authority in unincorporated areas under Local Government Code ch. 233, reaching commercial, public-accessible, and multi-family construction and substantial improvements. The records below reflect that authority plus the environmental and land records that apply alongside it.
Not sure this scope needs a permit?
Get a free quote →What Fort Bend 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 | the county authorized agent | 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 | the county authorized agent | 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 |
| Residential Development Permit | New structure or addition of 400 square feet or more on residential property | County Engineering Department | Applied for online at mgoconnect.org; includes slabs and outbuildings |
| Commercial Development Permit | All commercial development | County Engineering Department | County Engineer must review and approve civil construction drawings before application |
| 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 Fort Bend County
Inside Richmond city limits the picture changes completely: the city permits solar like any other municipality. The jurisdiction question is the first question.
Roofing permits in Fort Bend County
Fort Bend County sits south-west of Houston at roughly 105 to 115 mph ultimate design wind speed under the codes regional cities adopt. It is inland of the TDI designated catastrophe area, so no windstorm certification requirement attaches. Rainfall, hail, and floodplain elevation govern here — and floodplain work triggers a county permit on its own.
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
Fort Bend County permit cost and fees
Fort Bend County charges permit and plan review fees for the categories it regulates, alongside OSSF permitting, floodplain, platting, and road access records.
Confirm the current fee schedule directly — metro county fee orders are revised more often than the published pages suggest, and third-party review costs sit outside the county fee where that model applies.
| Fee component | How it works |
|---|---|
| Residential Development Permit | Structures and additions of 400 sq ft or more; $100 ($150 in the floodplain, $250 unplatted) |
| Commercial Development Permit | All commercial development; civil drawings approved first |
| Fire Marshal permits | Per the Order Adopting the Fire Code Fee Schedule |
| Floodplain work | Required for any work in a Special Flood Hazard Area |
| OSSF permit | County fee plus licensed site evaluation and design |
| Electric service release | Requested through the MyGovernmentOnline portal |
Planning a build in unincorporated Fort Bend County? Send us the parcel and scope and we’ll confirm jurisdiction, identify which county records apply, and file them in order.
Fort Bend County trade permits
Fort Bend County does not run a municipal-style residential trade permit programme. Trade licensure remains a state matter through TDLR and the TSBPE, and on commercial and multi-family work the county’s fire and building review reaches the systems that matter most for life safety.
Electrical
No county residential trade permit. TDLR licensure applies, and TDLR retains electrical and accessibility enforcement authority in unincorporated areas.
Plumbing
No county residential trade permit for interior plumbing. On-site sewage is permitted separately where no public sewer is available.
Mechanical / HVAC
No county residential trade permit. TDLR licensure applies to the contractor regardless.
Fire protection
Fire alarm, sprinkler, and suppression systems are reviewed and permitted by the county on commercial, public-accessible, and multi-family work.
Rather not deal with the Fort Bend County building department?
Get a free quote →Fort Bend County permit application: how to apply step by step
Check against Sugar Land, Missouri City, Richmond, Rosenberg, Katy, Stafford, Fulshear, and the county’s other cities — the county issues Development Permits for several cities by agreement.
Any fully enclosed structure or concrete slab of 400 sq ft or more needs a permit, including barns, garages, workshops, and storage buildings.
Any work within a Special Flood Hazard Area requires a permit. Confirm at the FEMA Flood Map Service Center.
The County Engineer must review and approve civil construction drawings before the Commercial Development Permit application.
Submit the Development Permit through the MyGovernmentOnline customer portal.
Fire alarm and fire protection system plans go to the Fire Marshal’s Office at 281-238-1500, with permits managed at FBCFMOpermits.com.
Inspections in Fort Bend County
The Fire Marshal’s Office conducts Fire and Life Safety inspections and manages permits and inspection scheduling through FBCFMOpermits.com.
Development Permit compliance runs through the Engineering Department, with the MyGovernmentOnline portal also handling electric service release requests and physical address updates.
Keep the permit and approved plans on site, and clear correction notices before requesting a re-inspection.
Fort Bend County permit search and official resources
- Fort Bend County — development permits
- Fort Bend County — do I need a permit?
- Fort Bend County Fire Marshal — construction permits
- FBCFMOpermits.com
- FEMA Flood Map Service Center
Frequently asked questions
Who issues building permits in Fort Bend County?
The Fort Bend County Engineering Department issues Development Permits for all unincorporated areas — a Residential Development Permit for any new structure or addition of 400 square feet or more on residential property, and a Commercial Development Permit for all commercial development — through mgoconnect.org. The Fire Marshal’s Office reviews commercial plans and fire protection systems. These are development permits, not municipal-style building permits with trade inspections. Inside Richmond city limits, the city permits normally.
Want this handled start to finish?
Get a free quote →How do I get a permit in Fort Bend 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 Fort Bend County?
Texas has no statewide building code, and Fort Bend 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.
When do I need a permit in unincorporated Fort Bend County?
A permit is required when proposed construction or other development is characterised by any of the following: any work to be performed within a floodplain or flood-prone area as defined by the latest Flood Insurance Rate Maps; construction of any fully enclosed structure or concrete slab — including existing building modification — equal to or larger than 400 square feet, such as a barn, garage, workshop, or storage building; or work involving development of improved or unimproved real estate including mining, dredging, filling, grading, paving, excavation or drilling operations, or storage of equipment and materials.
What is the difference between the two Fort Bend permits?
The Engineering Department issues Development Permits — residential for structures and additions of 400 square feet or more, commercial for all commercial development, applied for at mgoconnect.org. Separately, the Fire Marshal’s Office is the authority having jurisdiction for fire alarm and fire protection system plans in new facilities, working under the 2021 International Fire Code with local amendments since October 1, 2023 and managing permits at FBCFMOpermits.com.
Does Fort Bend County issue permits inside city limits?
Sometimes, by agreement. The Engineering Department issues Development Permits for all unincorporated areas, and the county also issues them inside Kendleton, Thompsons, Fairchilds, and Pleak under inter-local agreements. Confirm which entity holds the Development Permit for your specific parcel before filing anywhere.
Do I need a permit to install solar panels in Fort Bend County?
Ask the county first. Fort Bend 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 Fort Bend County?
Ask the county first. Fort Bend 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 Fort Bend County?
In a Texas county it is the difference between no county jurisdiction and possible county jurisdiction. Residential construction in unincorporated Fort Bend 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 Fort Bend County?
Not in unincorporated Fort Bend 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 Fort Bend County?
Because Fort Bend 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 Fort Bend County permit types online?
Yes, across two systems. Development Permits are applied for online at mgoconnect.org through the MyGovernmentOnline customer portal, which also handles electric service release requests and physical address updates. Fire Marshal permits and inspection scheduling run through FBCFMOpermits.com, with assistance on 281-238-1500.
Simplify Fort Bend County permitting with Alliance Permitting
Two permit tracks with two portals, a 400 square foot threshold reaching barns and slabs, civil drawings that must clear before a commercial application, and inter-local agreements pulling the county into some city work — Fort Bend County is more involved than most. Alliance Permitting is a permit expediter for Fort Bend County: we confirm jurisdiction, map the county records, and run them together.
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Contractors and builders choose Alliance for Fort Bend County because we deliver:
- Local expertise — we know which county office holds which record and where the ch. 233 line actually falls.
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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 Fort Bend County Engineering Department and Fire Marshal’s Office before filing. This is not legal advice.