City Building Permits
Lake Oswego, OR - 2026 Building Permit Guide
How to apply for a building permit in Lake Oswego, Oregon. Permit authority, application steps, fees, and inspection requirements.
Permit Authority
Lake Oswego runs its own building division for property inside city limits, including the portion of the city in Clackamas County. Planning approval remains separate.
- Department
- City of Lake Oswego Building Services
- Address
- Lake Oswego City Hall, 380 A Avenue, Lake Oswego, OR 97034
- Phone
- 503-635-0390
Online Permit Portal
Platform: Oregon ePermitting • Account required: Yes • Submission: In-person only
Additional resources:
Application Process
- Confirm zoning, planning, and site constraints with city planning before finalizing plans.
- Create an Oregon ePermitting account and submit building application, plans, and supporting documents.
- Pay intake and review fees and respond to correction notices.
- After approval, pay issuance fees and download stamped plans and permit card.
- Schedule city inspections and obtain finals.
Typical processing time: No universal citywide estimate posted on the main division page.
General Requirements
Lake Oswego requires permits for construction, enlargement, alteration, repair, moving, demolition, and many trade installations; planning approval may also be required.
Required Documents
- Application
- Plans
- Site plan
- Valuation
- Engineering
- Project-specific forms
- Planning materials where applicable
- Permit validity
- Oregon 180-day rule generally applies unless extended by the building official.
- Building code
- Current Oregon specialty codes as administered by the city.
- Owner-builder
- Homeowners may pull permits for work they are legally allowed to perform.
- Contractor requirements
- Oregon contractor licensing rules apply.
Fees
- Minimum permit fee
- See current fee schedule
- Plan check fee
- Per current city fee schedule.
- Permit fee formula
- Structural permits are valuation-based; trade permits and local review items are schedule-based.
- Reinspection fee
- Reinspection and investigation charges are listed on the city fee schedule.
Fees change. Verify current amounts at the official fee schedule.
Work That Does NOT Require a Permit
- State residential exemptions for qualifying minor residential work, subject to Lake Oswego planning and site overlays where applicable
Inspections
How to Schedule
- Oregon ePermitting (online)
- Building Services (phone)
- Inspection hours
- City business hours
Typical inspection sequence: City sequence varies by permit scope, typically footing/foundation, framing, rough trades, cover inspections, and finals.
Additional Resources
- Building code: Current Oregon specialty codes as administered by the city.
- Verify contractor license: Oregon CCB License Lookup
- Zoning information: View zoning info
- Planning - Do I Need a Permit?
- Building Fees
- License lookup guide: Oregon Contractor License Requirements
- Contract template: Oregon Homeowner-Contractor Agreement
- Oregon hub: Oregon Contractor License & Permit Hub
Information on this page was last verified: March 2026. Permit rules and fees change — confirm current requirements directly with the City of Lake Oswego Building Services before applying.
Frequently Asked Questions
Lake Oswego Building Permit FAQ
- Do I need a building permit in Lake Oswego, OR?
- Lake Oswego requires permits for construction, enlargement, alteration, repair, moving, demolition, and many trade installations; planning approval may also be required.
- How much does a building permit cost in Lake Oswego, OR?
- The minimum permit fee is See current fee schedule. Fees are calculated as: Structural permits are valuation-based; trade permits and local review items are schedule-based.. Plan check fee: Per current city fee schedule..
- How do I apply for a building permit in Lake Oswego, OR?
- 1. Confirm zoning, planning, and site constraints with city planning before finalizing plans. 2. Create an Oregon ePermitting account and submit building application, plans, and supporting documents. 3. Pay intake and review fees and respond to correction notices. 4. After approval, pay issuance fees and download stamped plans and permit card. 5. Schedule city inspections and obtain finals.
- How long does it take to get a building permit in Lake Oswego, OR?
- Typical processing time is No universal citywide estimate posted on the main division page..
- What work is exempt from building permits in Lake Oswego, OR?
- The following work is generally exempt: State residential exemptions for qualifying minor residential work, subject to Lake Oswego planning and site overlays where applicable.
- How do I schedule a building inspection in Lake Oswego, OR?
- Inspections can be scheduled via: Oregon ePermitting, Building Services.
Need help with your project?
Navigating permits in Lake Oswego can be complicated.
Jaspector connects you with local experts who can review your scope, verify your contractor, and help you understand what permits your project actually needs.
Learn how Jaspector worksOther cities in Clackamas County