Administrative overview · FIPS 41009
Columbia 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
Columbia County Land Development Services, Building Division
For a project in or near Columbia 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
503-397-1501; inspection scheduling 1-888-299-2821
Call before mobilizing if the project has a boundary, occupancy, fire, septic, or utility question.
Permit counter
Columbia County Building Division, temporarily 445 Port Avenue, Port Business Center, St. Helens, OR 97051; mailing address 230 Strand Street, St. Helens, OR 97051
Operating hours
Monday-Friday 8:30 AM-5:00 PM; available by phone, email, or appointment, with in-person application drop-off and permit pickup at the temporary Port Avenue location.
Review expectation
N/A. Columbia County publishes application requirements and advises applicants to contact Building for a project-specific fee quote; no standard 2026 review timeline was located.
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 Columbia County
Who handles permitting for this jurisdiction?
Columbia County Land Development Services, 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 503-397-1501; inspection scheduling 1-888-299-2821.
How long might review take?
N/A. Columbia County publishes application requirements and advises applicants to contact Building for a project-specific fee quote; no standard 2026 review timeline was located.
How are inspections scheduled?
Use Oregon ePermitting to apply, track permits, and schedule inspections; the FY24 application and county materials list the inspection line as 1-888-299-2821. Building Division staff can explain local inspection procedures at 503-397-1501 or building@columbiacountyor.gov. Required plan-review submittals generally include a completed application packet, engineered plans, site plan, and applicable calculations/truss drawings.
Which codes and exemptions should I review?
Columbia County administers the Oregon State Building and Specialty Codes with county amendments. Current 2026 editions include the 2025 Oregon Structural Specialty Code, mandatory April 1, 2026; 2023 Oregon Residential Specialty Code based on the 2021 IRC; 2023 Oregon Electrical Specialty Code based on the 2023 NEC; 2023 Oregon Plumbing Specialty Code; 2025 Oregon Mechanical Specialty Code; and 2025 Oregon Energy Efficiency Specialty Code. Coverage varies by city and permit discipline: the county covers unincorporated areas and Rainier, electrical services countywide except Vernonia and Clatskanie, structural services in Rainier and Prescott, and supplemental plumbing in St. Helens and Scappoose. Columbia County offers an AG-Equine-Forestry exemption for qualifying agricultural, equine, or forestry structures that are exempt from Oregon Structural Specialty Code plan review and permitting; an exemption application/certificate is required. Permit requirements otherwise depend on project type and location. The county's FY26 building application states permits expire if work is not started or is suspended for 180 days. Minor cosmetic and trade exemptions were not comprehensively published; confirm with Building at 503-397-1501.