Administrative overview · FIPS 41003
Benton County permit authority
The first compliance decision is jurisdictional: identify the office with statutory authority over your parcel, then use its filing and inspection sequence to keep the project moving.
Jurisdictional status
County
This county profile is the primary starting point for unincorporated-area permitting.
Responsible agency
Benton County Community Development Department / Building Division
For a project in or near Benton County, this office is the identified point of contact for permit intake, statutory code enforcement, plan review coordination, and inspection release conditions. Confirm the parcel’s boundary and project type before relying on the county lane.
Direct contact
541-766-6819; inspection scheduling 888-299-2821
Call before mobilizing if the project has a boundary, occupancy, fire, septic, or utility question.
Permit counter
Benton County Community Development / Kalapuya Building, 4500 SW Research Way, Corvallis, OR 97333
Operating hours
Public hours Monday-Friday 9:00 AM-4:00 PM; business hours Monday-Friday 8:00 AM-5:00 PM; application submittals by appointment.
Review expectation
Typical county processing: 1-2 family dwelling 9 weeks (maximum 16); manufactured dwelling 1 week (maximum 4); structural 2 weeks (maximum 18); septic 5 weeks (maximum 22); mechanical/electrical/plumbing under 1 week typical (maximum 23); all other permits 2 weeks typical (maximum 14). Over-the-counter issuance is possible when review is not needed.
Compliance workbench
Choose the next project decision.
Apply online
Open the verified digital gateway, application form, and review timeline.
Open guide →Fees & penalties
Understand fee schedules, enforcement exposure, and stop-work liabilities.
Open guide →Codes & exemptions
Read the code framework, minor-work exemptions, and inspection lane.
Open guide →Agency website
Visit the primary public source for current notices and contact changes.
Open guide →Source trail
Official sources for this profile
Use these direct agency or licensing links to confirm current instructions before you file, pay, or schedule work. External pages control if their information differs from this directory.
Project questions
Frequently asked questions for Benton County
Who handles permitting for this jurisdiction?
Benton County Community Development Department / Building Division is the identified county-level authority for this profile. Confirm that the property is in its service area before filing.
How should I begin an application?
Begin with the online permit gateway listed in the application guide. If the portal does not recognize the address or project type, contact 541-766-6819; inspection scheduling 888-299-2821.
How long might review take?
Typical county processing: 1-2 family dwelling 9 weeks (maximum 16); manufactured dwelling 1 week (maximum 4); structural 2 weeks (maximum 18); septic 5 weeks (maximum 22); mechanical/electrical/plumbing under 1 week typical (maximum 23); all other permits 2 weeks typical (maximum 14). Over-the-counter issuance is possible when review is not needed.
How are inspections scheduled?
Schedule inspections 24/7 through the Oregon Accela ePermitting portal; requests before 7:00 AM are performed the same day when possible, later requests generally the following day. Phone inspection line: 888-299-2821. Commercial electrical inspections are attempted daily (minimum Wed/Fri); commercial plumbing daily when possible (minimum Wed).
Which codes and exemptions should I review?
2025 Oregon Structural Specialty Code (2024 IBC/IFC/IEBC), mandatory Apr 1 2026; 2023 Oregon Residential Specialty Code (2021 IRC); 2023 Oregon Electrical Specialty Code (2023 NEC); 2023 Oregon Plumbing Specialty Code; 2025 Oregon Mechanical Specialty Code; 2025 Oregon Energy Efficiency Specialty Code (ASHRAE 90.1-2022), plus Benton County Development Code. 2026 ORSC/OESC are not yet current mandatory editions on July 31, 2026. Benton County says some residential/commercial project types do not require building permits; state examples include limited work such as replacing exposed sinks/toilets/faucets, countertops, showerheads, gutters/downspouts, hose bibs, regrouting tile, adding irrigation to an existing approved backflow device, or installing water filters. Trade or zoning permits may still apply. Every kind of development in a county floodplain requires a separate floodplain development permit, even where no building permit or land-use approval is otherwise required.