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§ 02
When a permit is required
Permit triggers and exempt work for Warrenton
Building permits required when a building or structure regulated by State Building Code is constructed, enlarged, altered, repaired, moved, or converted.
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
- Exempt One-story detached nonoccupied accessory structures with floor area ≤120 sq ft exempt from permit
- Exempt Stopping leaks or repairing freeze damage in drains/soil/waste/vent pipe (≤5 feet new piping) exempt if no system alterations
- Exempt Portable heating/ventilation/cooling units exempt
- Exempt Minor replacement parts not altering equipment approval/safety exempt
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
§ 03
Application process
Application → plan check → issuance → inspection → final
- 01 Contractors: Apply through Oregon ePermitting system (online, purchase permits, submit plans, schedule inspections)
- 02 Homeowners/Non-Contractors: Submit by mail, email, or in-person at City Hall (no online application currently offered)
- 03 Homeowners must sign 'owner doing own work affidavit' before permit issuance (if not CCB licensed)
- 04 Contractor verification of subcontractor licensing/insurance required
- 05 City processes application through Building Department
- 06 Receive permit upon approval and fee payment
§ 04
Fee schedule
Warrenton building permit fees
Fee type
Amount
01
Permit fee formula
Fees based on project valuation
Contact building@warrentonoregon.us for fee estimates
§ 05
Required inspections
Scheduling and sequence
How to schedule
- Oregon ePermitting System (contractors) (online)
- (503) 861-0920 (non-contractors) (phone)
Typical 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
§ 06
Frequently asked
Common questions about Warrenton permits
01 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.
02 How much does a building permit cost in Warrenton, OR? ▸
Building permit fees in Warrenton, OR are set by the local building department and vary by project type and valuation. Fees are calculated as: Fees based on project valuation.
03 How do I apply for a building permit in Warrenton, OR? ▸
To apply for a building permit in Warrenton, OR, follow these steps: 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
04 What work is exempt from building permits in Warrenton, OR? ▸
Not all construction work requires a permit 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. When in doubt, confirm with the local building department before starting work.
05 How do I schedule a building inspection in Warrenton, OR? ▸
Once your permit is issued and work reaches an inspection milestone, you can schedule a building inspection in Warrenton, OR via: Oregon ePermitting System (contractors), (503) 861-0920 (non-contractors).
last verified April 2026
entry id permits/oregon/clatsop/warrenton
Educational reference. Permit rules and fees change — confirm current requirements directly with City of Warrenton Building Department before applying. Jaspector is not legal advice.