City Building Permits

Warrenton, OR - 2026 Building Permit Guide

How to apply for a building permit in Warrenton, Oregon. Permit authority, application steps, fees, and inspection requirements.

Oregon Clatsop County Updated March 2026

Permit Authority

All properties within the incorporated City of Warrenton.

Department
City of Warrenton Building Department
Phone
(503) 861-0920

Online Permit Portal

Open State of Oregon ePermitting System

Platform: Accela/Oregon ePermitting • Account required: Yes • Submission: In-person only

Application Process

  1. Contractors: Apply through Oregon ePermitting system (online, purchase permits, submit plans, schedule inspections)
  2. Homeowners/Non-Contractors: Submit by mail, email, or in-person at City Hall (no online application currently offered)
  3. Homeowners must sign 'owner doing own work affidavit' before permit issuance (if not CCB licensed)
  4. Contractor verification of subcontractor licensing/insurance required
  5. City processes application through Building Department
  6. Receive permit upon approval and fee payment

General Requirements

Building permits required when a building or structure regulated by State Building Code is constructed, enlarged, altered, repaired, moved, or converted.

Required Documents

  • Building permit application
  • Building plans
  • Mechanical permit application (if applicable)
  • Plumbing permit application (if applicable)
  • Electrical permit application (if applicable)
  • Owner-doing-own-work affidavit (for non-licensed homeowners)
Building code
Oregon State Building Code
Owner-builder
Homeowners exempt from CCB licensing for work on own residence/property (but affidavit required)
Contractor requirements
Contractors required to verify subcontractor licensing/insurance; creation of new habitable spaces, toilet rooms, or bathrooms requires building permit

Fees

Permit fee formula
Fees based on project valuation
Payment note
Contact building@warrentonoregon.us for fee estimates

Work That Does NOT Require a Permit

  • One-story detached nonoccupied accessory structures with floor area ≤120 sq ft exempt from permit
  • Stopping leaks or repairing freeze damage in drains/soil/waste/vent pipe (≤5 feet new piping) exempt if no system alterations
  • Portable heating/ventilation/cooling units exempt
  • Minor replacement parts not altering equipment approval/safety exempt

Inspections

How to Schedule

Typical inspection sequence: Standard building code inspections required; mechanical system inspections; plumbing system inspections; electrical system inspections; inspection scheduling available through ePermitting (contractors) or by contacting city

Additional Resources

Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the City of Warrenton Building Department before applying.

Frequently Asked Questions

Warrenton Building Permit FAQ

Do I need a building permit in Warrenton, OR?
Building permits required when a building or structure regulated by State Building Code is constructed, enlarged, altered, repaired, moved, or converted.
How much does a building permit cost in Warrenton, OR?
Fees are calculated as: Fees based on project valuation.
How do I apply for a building permit in Warrenton, OR?
1. Contractors: Apply through Oregon ePermitting system (online, purchase permits, submit plans, schedule inspections) 2. Homeowners/Non-Contractors: Submit by mail, email, or in-person at City Hall (no online application currently offered) 3. Homeowners must sign 'owner doing own work affidavit' before permit issuance (if not CCB licensed) 4. Contractor verification of subcontractor licensing/insurance required 5. City processes application through Building Department 6. Receive permit upon approval and fee payment
What work is exempt from building permits in Warrenton, OR?
The following work is generally exempt: One-story detached nonoccupied accessory structures with floor area ≤120 sq ft exempt from permit; Stopping leaks or repairing freeze damage in drains/soil/waste/vent pipe (≤5 feet new piping) exempt if no system alterations; Portable heating/ventilation/cooling units exempt; Minor replacement parts not altering equipment approval/safety exempt.
How do I schedule a building inspection in Warrenton, OR?
Inspections can be scheduled via: Oregon ePermitting System (contractors), (503) 861-0920 (non-contractors).

Need help with your project?

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Important: This page is an educational resource provided by jaspector.com. It is not legal advice, and it does not substitute for official guidance from the permit authority listed above. Permit requirements, fees, and processes change frequently. Always verify current requirements directly with the issuing department before beginning any construction project. Use of this page does not create an attorney-client relationship. Jaspector assumes no liability for any outcomes arising from reliance on this information.

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