ADU Permit Online Portal Guide in Portland, Oregon
Everything you need to apply for a adu permit in Portland, Oregon — documents, fees, steps, and a downloadable submission packet.
Key Facts
- Permit required
- Yes
- Submission method
- Online
- Typical fee range
- $2,250 – $6,930
- Review time
- Varies by jurisdiction
- Inspections
- 7 inspections required
Portland Bureau of Development Services
Verified7-step online submission process — account registration required[1][2]
Open PortalPortal steps may change without notice. Always confirm the current process at Portland's online portal.
Generate your permit packet
Get a personalized ADU permit packet for Portland, Oregon — tailored to your project details.
- Required forms: Building Permit Application, and more
- Pre-filled templates: Permit Cover Sheet
- Fee breakdown: $750–$4,200 estimated total
- Step-by-step Portland Bureau of Development Services portal submission guide
- Inspection prep checklist (7 items)
- Personalized for your specific project details
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Required Documents
Portland requires the following documents for this permit application.
Building Permit Application
Completed BDS Form 1 (Application for Residential Building Permit)
Architectural Plans
Complete architectural drawings signed by a licensed architect, including floor plans, elevations, sections, and details
Site Plan
Site plan showing lot boundaries, building footprint, setbacks, parking, driveways, and utility locations
Energy Compliance Report
Energy Code Compliance form demonstrating compliance with Oregon Energy Code (IECC)
Property Survey or Title
Current property survey or proof of lot dimensions (title page of deed with lot size)
Utility Connection Plans
Plans showing water, sewer, electrical, and gas connections as applicable
Fees and Timeline
Fee Breakdown
| Fee | Range | Confidence |
|---|---|---|
| ADU Permit Fee | $1,500 – $4,200 | Verified |
| Plan Review Fee | $750 – $2,730 | Verified |
Inspections Required
Foundation and footings per IBC standards
Foundation and footings per IBC standards
Framing and structural members verification
Framing and structural members verification
Electrical rough-in and panel inspection
Electrical rough-in and panel inspection
Plumbing rough-in and final connections
Plumbing rough-in and final connections
Mechanical systems and HVAC installation
Mechanical systems and HVAC installation
Final inspection for overall Code compliance
Final inspection for overall Code compliance
Energy Code compliance verification
Energy Code compliance verification
Authority Sources
Data on this page is sourced from official records published by the permitting authority. Always verify requirements directly before submitting.
Verified February 15, 2026
Verified February 15, 2026
Verified February 15, 2026
Verified February 15, 2026
Frequently Asked Questions
- Do I need a adu permit in Portland?
- Yes. Portland requires a adu permit for this type of project. Submitting without a permit may result in fines, required removal, or complications when selling your property.
- How long does adu permit approval take in Portland?
- Processing times in Portland vary depending on project complexity and current review volume. The process involves 7 steps. Contact Portland Development Services for current timelines.
- What documents are required for a adu permit in Portland?
- Portland requires 6 documents including Building Permit Application, Architectural Plans, Site Plan, Energy Compliance Report, and others. See the full list above for details.
- What happens if I build without a adu permit in Portland?
- Building without a permit in Portland can result in stop-work orders, fines, required removal of work, difficulty selling your property, and insurance complications. It is strongly recommended to obtain proper permits before starting work.
- Can PermitMagic help prepare my adu permit submission in Portland?
- Yes. PermitMagic generates a submission-ready packet tailored to Portland's requirements, including a document checklist, workflow steps, and authority references. Start a permit plan to get your personalized packet.
- How much does a adu permit cost in Portland?
- ADU permit fees in Portland typically range from $2,250 to $6,930, depending on project scope. Fees may include building permit, plan review, and technology surcharges. Verify current fees with Portland.
Related Permits
Other permits in Portland
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Answer a few project questions and get a adu permit packet for Portland, Oregon — with every document, form, and fee organized for submission.
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