Do I need a permit for addition or structural alteration in Keizer?
Keizer does not issue residential building permits. Keizer does not run its own building program. The Oregon Building Codes Division Local Building Department Directory lists Marion County as the building department for Keizer for all permit types (structural, mechanical, electrical, plumbing). The City of Keizer Building Permit Division takes applications at City Hall for single family homes, residential remodels and accessory structures on Marion County permit forms; Marion County Building Inspection (5155 Silverton Rd NE, Salem, 503-588-5147) handles plumbing with plan review, septic, deferred submittals, re-inspections and electrical with plan review.
The requirements below come from Oregon rules and describe the standard the work must still meet. They are not a statement that Keizer will issue you a permit.
Yes. In Oregon, addition or structural alteration generally requires a permit, and Keizer is no exception.
ORSC R105.1 requires a permit to construct, enlarge, or alter a dwelling, and R105.1.1 requires a building permit for any new habitable space, toilet room, or bathroom. Additions must meet ORSC Chapter 11; additions of 600 square feet or more must select an additional energy measure, and additions under 225 square feet are excused from the additional-measure tables (N1101.3). Alterations and additions that require a permit trigger smoke alarms throughout the dwelling (R314.2.2), and work requiring a structural permit triggers carbon monoxide alarms (R315.2.2), except for exterior-only work such as roofing, siding, windows, doors, porches, or decks.
Get your exact answer
Answer a few questions to see the specific permits, documents, and next steps for your addition or structural alteration in Keizer.
Check my projectDocuments you may need
- Building permit applicationRequired
- Site plan with setbacksRequired
- Construction drawings (floor plan, foundation, framing, sections)Required
- ORSC Chapter 11 energy compliance, including any required additional measureRequired
- Separate electrical, plumbing, and mechanical permitsLikely required
Possible inspections
- Footing and foundation inspection
- Framing inspection
- Electrical, plumbing, and mechanical rough-in inspections
- Insulation inspection
- Final inspection
Frequently asked questions
- Do I need a permit for addition or structural alteration in Keizer?
- Yes. In Oregon, addition or structural alteration generally requires a permit, and Keizer is no exception. The documents and inspections sections on this page list what the building department typically asks for.
- Who issues the permit in Keizer?
- The local building department for Keizer handles permitting. This page lists its contact details and online portal. Your mailing city is not always the permitting authority, so confirm the jurisdiction before you apply.
- How do I find out the exact requirements for my project?
- Run the free PermitRoadmap check for your specific project and answers. It returns the likely permits, documents, inspections, and next steps, each linked to its official source.
PermitRoadmap is an independent informational service and is not affiliated with any city, county, state agency, or permitting authority. Results are informational and do not replace confirming requirements with the local permitting authority.