Hood/Exhaust Ventilation System Permit in Portland, Oregon (2026)
Your final plumbing, gas, and electrical inspections will be blocked—stopping your opening dead—without the approved Hood/Exhaust Ventilation System Permit from Portland's Bureau of Development Services. This mechanical permit, also called a commercial kitchen ventilation approval, ensures your fire suppression and air quality systems meet the fire and mechanical codes. Key facts:
- 35 fields — ApronPrep auto-fills 29
- $0–$0 government filing fees (some system designs may incur plan review fees)
- Varies timeline, dependent on project complexity
Analyzed from Hood/Exhaust Ventilation System Permit
83% from one compliance interview
Manual entry or document upload required
Why You Need a Hood/Exhaust Ventilation System Permit
Installing commercial kitchen ventilation without this permit violates Portland City Code Title 24 (Building Regulations) and the locally adopted Oregon Structural Specialty Code (OSSC). The permit ensures your system is reviewed for compliance with specific mechanical and fire code sections, including fire suppression integration (NFPA 96) and emissions control. The Bureau of Development Services (BDS) acts as the local authority, using this permit to enforce standards that protect building occupants, neighbors, and the structural integrity of your property.
Operating or building without this permit triggers immediate and costly consequences. Based on common enforcement actions in Portland, you face:
- Stop-Work Orders: The city can halt all construction, freezing your project timeline and locking you out of your investment for weeks.
- Denial of Certificate of Occupancy: Without final approval on your hood system, the city will not issue your C/O, meaning you cannot legally open for business.
- Mandatory Demolition: If the unpermitted system is non-compliant, you may be ordered to tear it out entirely and start over, incurring double material and labor costs.
- Insurance Voidance: Most commercial property and liability policies exclude coverage for damages arising from unpermitted work, leaving you personally liable for fire or health-related incidents.
- Lease Violations: Landlords often require proof of permitted systems; failure to provide it can breach your lease agreement.
Legal code: State building code (locally administered), local building ordinances, state accessibility code
Recent update: As of 2026, Portland BDS has expanded its digital plan review for mechanical systems, reducing the average initial review time for hood permits submitted electronically.
Who Needs a Hood/Exhaust Ventilation System Permit?
| Type | Required | Notes |
|---|---|---|
| Restaurant (Full-Service) | Required | Required per Portland Fire & Rescue (PF&R) § 18.05.040 for any establishment using commercial cooking appliances that produce grease-laden vapors, which includes nearly all restaurants with a fryer, grill, or range. |
| Bar / Nightclub | Required | Required if the establishment has any commercial cooking equipment; bars with only drink preparation or simple warming appliances are exempt from hood permit but may still need ventilation review for other reasons. |
| Food Truck | Required | Required for any mobile food unit with installed cooking appliances; the permit is part of the annual PF&R certification process for the vehicle, separate from a stationary building permit. |
| Coffee Shop / Café | Not Required | Generally not required if only using espresso machines or small warming ovens, as PF&R typically exempts appliances with minimal grease output; confirm with PF&R if toasting sandwiches or using a griddle. |
See which restaurant types need this requirement — and which don't.
See Full Requirements →Field-by-Field Guide (35 Fields)
29 of 35 auto-filledDesigner Name
textEnter the full, legal business name of the licensed mechanical engineer or certified designer responsible for the ventilation system design, as shown on their official license.
COMMON MISTAKE: Listing a contractor's company name instead of the licensed design professional's name, which can lead to a rejection for lacking proper design authority.
Designer Phone Number
textEnter the direct, daytime business phone number for the licensed designer, formatted as (XXX) XXX-XXXX, for the Portland Bureau of Development Services to contact with technical questions.
COMMON MISTAKE: Providing a personal cell number or an office main line without an extension, which can cause delays if reviewers cannot reach the designer promptly.
Designer Email Address
textEnter the professional email address for the licensed designer, which the city uses to send plan review comments and approval notices.
COMMON MISTAKE: Using a generic contact@ email address or a personal email that may filter official correspondence, risking missed critical updates.
Type of Cooking Device
textSpecify the exact commercial cooking appliance under the hood, such as '36" charbroiler', 'double-stack convection oven', or 'high-output wok range', as this determines required exhaust airflow (CFM).
COMMON MISTAKE: Using generic terms like 'stove' or 'grill' instead of the manufacturer's model name and BTU rating, which is insufficient for calculating the required ventilation capacity.
Hood System Type (Type 1 or Type 2)
textEnter 'Type 1' for hoods over grease-producing cooking equipment (e.g., fryers, griddles) or 'Type 2' for hoods over moisture-producing appliances (e.g., dishwashers, steamers), per Oregon Mechanical Specialty Code definitions.
COMMON MISTAKE: Misidentifying the hood type for the appliance below it (e.g., labeling a hood over a fryer as Type 2), which leads to automatic rejection for non-compliance with fire safety codes.
Hood Material Type
textList the primary construction material, such as '18-gauge stainless steel', 'galvanized steel', or 'aluminum', which must be non-combustible and suitable for the hood's classification.
COMMON MISTAKE: Omitting the material gauge or specifying a non-listed material like 'painted mild steel', which fails to meet fire code standards for commercial kitchen hoods.
Hood Material Thickness
textEnter the precise thickness of the hood material, typically noted as a gauge (e.g., '16 ga.') or decimal inch (e.g., '0.060") from the manufacturer's specifications.
COMMON MISTAKE: Leaving this field blank or guessing a thickness, as reviewers cross-check this with material type and hood size for structural integrity compliance.
Hood Style
textSpecify the hood's physical configuration, such as 'wall-mounted canopy', 'island canopy', 'eyebrow', or 'backshelf', which affects placement and clearance requirements.
COMMON MISTAKE: Confusing 'style' with 'type' (e.g., entering 'Type 1' here) or using non-standard terms, which can trigger a request for clarification from plan reviewers.
Filter Type
textEnter the specific filter model and removal method, like 'baffle filter', 'mesh filter', or 'extractor-type', as listed in the UL 1046 listing for the hood system.
COMMON MISTAKE: Listing a generic 'grease filter' without the UL classification, which is required to verify the filter's fire-retardant and efficiency ratings.
Filter Height Above Cooking Surface
textProvide the exact vertical distance, in inches, from the cooking appliance's highest cooking surface to the bottom of the grease filter, which impacts capture velocity.
COMMON MISTAKE: Measuring to the hood lip instead of the filter or providing a range (e.g., '18-24"') instead of the single, designed height specified on the mechanical drawings.
ApronPrep auto-fills 29 of 35 fields from a single compliance interview — no re-typing, no guessing what the government expects.
Top 5 Hood/Exhaust Ventilation System Permit Mistakes
1. Submitting Generic System Specifications
Using manufacturer default CFM (Cubic Feet per Minute) or BTU ratings from a catalog, rather than calculations for your specific kitchen layout and equipment. The Portland Bureau of Development Services (BDS) requires these specs to be calculated by a licensed professional. Incomplete or generic specs are the top cause of plan review rejection, which adds 3-4 weeks to your timeline while you resubmit corrected documents.
2. Missing Sealed Mechanical Drawings
Attaching a simple sketch or a copy of your general floor plan instead of a full set of mechanical drawings stamped by a Professional Engineer (PE) licensed in Oregon. The City of Portland requires engineered plans for all commercial kitchen exhaust systems. Submitting non-compliant drawings results in an immediate hold on your application, requiring a full re-draft and re-submission.
3. Incorrectly Sizing Fire Suppression Systems
Failing to coordinate the UL‑listed hood fire suppression system (like Ansul) with the specific hood and appliance layout shown on your plans. The BDS Plan Review checks for this integration. A mismatch, such as specifying nozzles for a six-burner range when your plan shows an eight-burner unit, triggers a correction letter and adds 2-3 weeks to the approval process.
Skip the Paperwork on Your Hood/Exhaust Ventilation System Permit
ApronPrep auto-fills 29 of 35 fields from one compliance interview.
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Hood/Exhaust Ventilation System Permit by City in Oregon
| City | Fee Range | Timeline |
|---|---|---|
| Eugene | ||
| Portland | ||
| Salem |
Timeline: Varies
Complete the kitchen exhaust system checklist provided by Portland Fire Department
Download and print the official 'Commercial Kitchen Hood System Checklist' (Form F101-01) from the Portland Fire & Rescue website. Walk through your proposed kitchen layout and answer all 12 sections, including hood type, grease duct material, and fire suppression tie-in. Missing a single signature on this checklist is the most common reason for immediate rejection. This task typically takes 1-2 hours if you have your kitchen plans ready.
Provide checklist to licensed engineer responsible for system design
Hand off your completed checklist and any preliminary kitchen equipment layout drawings to the professional engineer (P.E.) or architect designing your ventilation system. They must be licensed to practice in Oregon. This step ensures your design professional has the correct fire code parameters before drafting plans. Delays occur if the engineer requests clarifications, so plan for a 1-3 day hand-off period.
Engineer prepares required plans and documentation per NFPA 96 standard
Your engineer creates detailed construction drawings showing duct routing, hood dimensions, fan specs, and clearance to combustibles, all stamped with their Oregon P.E. seal. They must also prepare a written specification sheet certifying compliance with NFPA 96 (2024 edition) and the Oregon Fire Code. This is the most time-intensive step; plan for 1-3 weeks depending on engineer workload and design complexity.
Where to Apply
Applications are handled by your local building 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 Oregon.
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 time varies significantly, as noted by the Portland Bureau of Development Services (BDS), and is heavily dependent on plan review complexity and inspector scheduling. For straightforward installations that pass the first inspection, the timeline can be 2-4 weeks. A major renovation requiring detailed plan review or a full Building Permit can extend this timeline to several months. Always verify the current schedule by contacting BDS directly when you submit your application.
The official government filing fee range is $0–$0, according to Portland BDS fee schedules. This typically indicates the permit fee is calculated based on the project valuation or is bundled within the cost of a larger required permit. For example, if your hood installation is part of a full kitchen build-out, the fee is integrated into the overall Mechanical or Building Permit costs. Contact BDS Plan Review for the exact valuation-based calculation for your project.
No. A hood/exhaust ventilation system permit is issued for a specific piece of equipment at a specific address and cannot be transferred to a new location. If you relocate your restaurant or cooking equipment, you must apply for a new permit at the new address. This process requires submitting new plans for review to ensure the new installation meets all current Portland Fire & Rescue and BDS codes at that specific site.
This is typically a one-time permit for installation and does not require periodic renewal. However, the system must be maintained to code, which includes professional cleaning and servicing as required by Portland Fire Code §13.6.2. While the permit itself doesn't renew, you must maintain documentation of this maintenance and may need to pass re-inspections if the system is modified or as part of a general fire safety inspection for your business license.
A City of Portland inspector will verify the installation matches the approved plans and complies with the mechanical, fire, and building codes. Key checks include verifying the hood's size and placement over all cooking equipment, proper ductwork materials and clearances, correct fire suppression system tie-ins (if required), and that the exhaust fan provides adequate CFM (cubic feet per minute) of airflow. The inspection cannot be finalized until all related work, such as final electrical connections, passes its own Electrical Permit inspection. Not legal advice — verify inspection specifics with Portland BDS.
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 Oregon specifically, we have analyzed compliance dossiers for 3 cities (Eugene, Portland, Salem), generating Rich FILs (Form Intelligence Layers) with 35 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
- Eugene — Building Department / Inspectional Services
- Portland — Building Department / Inspectional Services
- Salem — Building Department / Inspectional Services
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