Grease Trap Installation Permit in Houston, Texas (2026)
You cannot install a commercial food waste interceptor in Houston without a valid permit, and your project will remain stalled until a city inspector signs off on the final installation. This Grease Trap Installation Permit (also known as a Fats, Oils, and Grease, or FOG, control device permit) is issued by the Houston Health Department through the Houston Permitting Center. Key facts:
- 33 fields — ApronPrep auto-fills 27
- $393–$5,740 government filing fees, based on fixture count and project value (per Houston Permitting Center fee schedule)
- Varies typical processing timeline
Analyzed from Grease Trap Installation Permit
82% from one compliance interview
Manual entry or document upload required
Why You Need a Grease Trap Installation Permit
A Grease Trap Installation Permit is mandated by multiple layers of regulation in Houston. The primary legal requirement stems from the Houston Plumbing Code, which enforces standards for commercial food service grease interceptors as adopted from the International Plumbing Code (IPC). This installation is also governed by the Texas Accessibility Standards (TAS) if the work area impacts public or employee access, and it must comply with the City of Houston Building Code for any associated structural modifications. The final system must be reviewed and approved by the Houston Department of Public Works & Engineering (PWE) and the Building Code Enforcement division. Without this permit, your installation is not recognized by the city, preventing final plumbing inspections and the issuance of a Certificate of Occupancy.
Proceeding without this permit or failing an inspection triggers immediate and costly consequences. The City of Houston can issue a stop-work order, halting all construction and potentially delaying your opening for weeks. Further penalties include:
- Substantial fines for unpermitted work, which can accrue daily until the violation is corrected.
- Denial of your Certificate of Occupancy, meaning you cannot legally open your restaurant to the public.
- Required demolition of non-compliant plumbing work at your own expense to allow for a proper, permitted re-installation.
- Voided warranties or denied claims from insurers if damage occurs from unpermitted work.
- Breach of lease terms, as most commercial leases require tenants to obtain all necessary permits for alterations.
Legal code: State building code (locally administered), local building ordinances, state accessibility code
Recent update: In 2025, the City of Houston adopted updated versions of the International Plumbing and Building Codes, which may affect grease trap sizing and installation specifications for new applications.
Who Needs a Grease Trap Installation Permit?
| Type | Required | Notes |
|---|---|---|
| Restaurant (Full-Service) | Required | Required under Houston's Municipal Code § 37-10 for any facility that prepares, serves, or otherwise discharges fats, oils, and grease (FOG) into the sanitary sewer. |
| Bar / Nightclub | Not Required | Typically exempt if no food is prepared on-site; verification with the Houston Department of Public Works & Engineering is required to confirm your specific kitchen activities. |
| Food Truck | Required | Required if preparing and serving food, as mobile units must connect to an approved grease interceptor system when stationed at a commissary or designated service point. |
| Coffee Shop / Café | Required | Required if the menu includes any heated food preparation (e.g., sandwiches, pastries), as this generates grease discharge regulated by the Houston Municipal Code § 37-10. |
See which restaurant types need this requirement — and which don't.
See Full Requirements →Field-by-Field Guide (33 Fields)
27 of 33 auto-filledLegal Business Name
textEnter the official, registered name of your business exactly as it appears on your Texas Secretary of State filing or your Assumed Name Certificate (DBA).
COMMON MISTAKE: Using the restaurant's trade name (e.g., 'Joe's Grill') instead of the legal entity name (e.g., 'Houston Eats, LLC') is the top cause for rejection.
Restaurant Physical Address
textEnter the complete street address of the restaurant property where the grease trap will be installed, including suite or unit number.
COMMON MISTAKE: Providing a P.O. Box, the owner's home address, or an incorrect parcel/lot number will cause immediate rejection by Houston Public Works.
Primary Contact Phone
textProvide a direct phone number for the project manager or owner who can answer technical questions from Houston Public Works inspectors.
COMMON MISTAKE: Listing a disconnected number or a generic answering service can delay approval by 1-2 weeks if inspectors cannot reach you.
Primary Contact Email
textEnter a monitored email address where official permit correspondence and inspection schedules from the City of Houston will be sent.
COMMON MISTAKE: Using an infrequently checked email or misspelling the address often results in missed deadlines and permit holds.
Food Service Permit Status
checkboxCheck this box only if you have already obtained a valid Food Service Permit from the Houston Health Department for this location.
COMMON MISTAKE: Checking 'Yes' without an active permit triggers a cross-check failure and a mandatory correction, adding 5-10 business days to your review.
Food Service Permit Number
textIf you checked 'Yes' above, enter the exact 7-digit permit number issued by the Houston Health Department (e.g., 'FSP-12345').
COMMON MISTAKE: Entering an expired permit number, a number from a different location, or guessing incorrectly will flag the application for manual review.
Special Waste Generator Registration Status
checkboxCheck this box if your business is already registered with Houston Public Works as a generator of grease trap waste (required for hauler services).
COMMON MISTAKE: Most new applicants mistakenly check 'Yes' here, but registration is typically completed after the grease trap permit is approved.
Number of Kitchen Plumbing Fixtures
textEnter the total count of all food-prep sinks, dishwashers, floor drains, and pre-rinse sprayers that will discharge into the grease interceptor.
COMMON MISTAKE: Under-counting fixtures (like forgetting the mop sink) leads to an undersized grease trap design, which fails plan review and requires resubmission.
Type of Food Service Operation
textDescribe your primary service model using standard terms like 'Full-Service Restaurant,' 'Fast Food,' 'Catering Kitchen,' or 'Institutional Cafeteria.'
COMMON MISTAKE: Using vague terms like 'food business' or 'kitchen' does not provide the flow-rate data Houston Public Works needs for sizing calculations.
Estimated Daily Meal Volume
textProvide a realistic estimate of total meals served per day, based on your business plan or existing operations, as this dictates wastewater flow rates.
COMMON MISTAKE: Exaggerating volume to get a larger trap or underestimating to save cost are both red flags that trigger additional justification requests.
ApronPrep auto-fills 27 of 33 fields from a single compliance interview — no re-typing, no guessing what the government expects.
Top 5 Grease Trap Installation Permit Mistakes
1. Selecting the Wrong Grease Trap Interceptor Capacity
Underestimating the required grease interceptor size (in gallons per minute, gpm) based on your kitchen's plumbing fixture units (PFUs). The City of Houston Public Works Department uses specific formulas (detailed in the Houston Plumbing Code, Chapter 10) to calculate required capacity. Submitting plans with an undersized trap causes an immediate plan review rejection, adding 2-3 weeks to your timeline. Provide your plumber's PFU calculation sheet with the application.
2. Submitting an Incomplete Plumbing Diagram
Omitting critical details from the required plumbing schematic, such as pipe diameters, slopes, cleanout locations, and the exact point of connection to the public sewer line. Houston reviewers reject diagrams that are conceptual sketches instead of scaled, professional drawings. This omission triggers a request for additional information (RFI), delaying approval by 10-15 business days. Ensure your licensed plumber stamps and signs the final diagram.
3. Incorrectly Listing the Property Owner or Applicant
The permit application must be filed by the property owner or an authorized agent (like your general contractor) with a notarized authorization letter. Using the restaurant business name without the owner's legal name or submitting without the required letter of authorization results in an administrative hold. Based on ApronPrep's analysis, this mistake adds a 1-2 week delay while correspondence is sorted out. The applicant name must match the entity on the lease or deed.
Skip the Paperwork on Your Grease Trap Installation Permit
ApronPrep auto-fills 27 of 33 fields from one compliance interview.
No credit card required
Grease Trap Installation Permit by City in Texas
| City | Fee Range | Timeline |
|---|---|---|
| Houston | Contact Houston Health Department at 832-393-5740 or visit houstonpermittingcenter.org fee calculator for current permit fees | 4-8 weeks from application submission to final approval, depending on plan review completeness and inspector availability for final inspection |
Government Filing Fees
Contact Houston Health Department at 832-393-5740 or visit houstonpermittingcenter.org fee calculator for current permit fees
Timeline: 6–12 Weeks for Standard Installation
Step 1: Register as a Special Waste Generator with Houston Health Department if not already registered
Complete the Special Waste Generator registration online via the Houston Health Department portal or by mail using Form SW-1. You'll need your business license, EIN, and site address. This step is mandatory before any grease trap review can start; missing registration is the top cause for application rejection at the Health Department stage. Duration: 1–2 business days.
Step 2: Submit Grease Trap Permit application to Houston Permitting Center with commercial kitchen plumbing plans showing trap location, sizing, and specifications
File the Plumbing Permit Application (PLM-100) and Commercial Grease Interceptor Addendum with sealed plumbing plans through Houston’s 24/7 online permitting portal or in-person at the Permitting Center. The plumbing plans must be stamped by a Texas-registered professional engineer or architect and clearly indicate fixture counts and flow rates to calculate required grease trap capacity. Incorrect fixture-unit calculations are the #1 reason for plan review delays. Duration: 1–2 hours to file.
Step 3: Include manufacturer specifications, product data sheets, and maintenance plan documentation with application
Attach the grease trap manufacturer’s IAPMO/UL listing, dimensional drawings, and cut sheets proving compliance with PDI G101 or ASME A112.14.3 standards. Your maintenance plan must detail cleaning frequency (minimum quarterly per City Code) and the licensed liquid waste hauler you’ve contracted. Applications submitted without these third-party documents are typically placed on hold, adding 1–2 weeks to the review. Duration: 1–2 hours to gather and attach.
Where to Apply
Applications are handled by your local city of houston public works & engineering department in each city. Select your city below for authority details, fees, and processing timeline.
Other Requirements You'll Need
This is one of 13 requirements for opening a restaurant in Texas.
ADA Compliance Self-Certification
federal
Alarm System Permit/Registration
local
Application for Employer Identification Number
federal
Articles of Organization (LLC) or Articles of Incorporation (Corporation)
state
See all co-required forms and how they connect to your compliance dossier.
See All RequirementsProcessing timelines vary significantly and depend on your project's complexity and plan review schedule with the Houston Department of Public Works & Engineering (PWE). There is no standard timeline posted for this permit. Contact PWE directly for current review time estimates to avoid delays with related work, like obtaining your final Certificate of Occupancy.
Government filing fees for this permit range from $393 to $5,740, per the Houston Department of Public Works & Engineering fee schedule. The exact cost is calculated based on your grease trap's capacity and installation scope, similar to how costs are assessed for a related Plumbing Permit. Not legal advice — verify final fees with PWE.
No, grease trap installation permits are site-specific and tied to the physical location and approved plans. A permit issued for one address cannot be transferred to another. You must apply for a new permit at the new location, following the same review and inspection process administered by the Houston Department of Public Works & Engineering.
You do not renew an installation permit. This is a one-time permit for the initial construction and installation work. Ongoing compliance is enforced through annual or semi-annual grease trap maintenance and inspection requirements mandated by the Houston Health Department's Fats, Oils, and Grease (FOG) program, separate from the building permit.
A city inspector from the Department of Public Works & Engineering will verify the installation matches the approved plans. They check the trap's size, location, accessibility for maintenance, and proper connection to the plumbing system. The inspector will also verify that any required Backflow Prevention Device Certification is completed if applicable. You must pass this inspection before the permit is finalized.
About This Data
This guide is generated from ApronPrep's compliance dossier system, which uses 53 parallel AI authority experts to discover requirements, then downloads actual forms and generates field-level intelligence for each one.
For Texas specifically, we have analyzed compliance dossiers for 1 city (Houston), generating Rich FILs (Form Intelligence Layers) with 33 form fields analyzed for this requirement. Fee data is sourced from actual county department fee schedules, not estimates.
Our data is verified against official government sources and updated when regulatory changes are detected. If you find an error, please report it — accuracy is our core commitment.
Sources
- State building code (locally administered), local building ordinances, state accessibility code
- Houston — Building Department / Inspectional Services
This Form Is One of 60+ Requirements.
ApronPrep discovers every permit your city requires — including the ones generic checklists miss. Pick your city for the complete package.