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Oregon, Marion County Remodeler Permit Regulations and County Ordinances for Unincorporated Areas

Marion County Remodeling and Renovation Permit Requirements

Marion County, Oregon, through its Building Inspection Division, is the Authority Having Jurisdiction (AHJ) for building permits in unincorporated areas of the county. They review new construction and remodeling plans for these areas, as well as for cities that contract with them for building inspection services. For projects in unincorporated areas, permit requirements are generally consistent with state building codes, but it's always advisable to confirm specific local requirements.

Rules for Properties in Unincorporated Areas

Marion County is responsible for issuing all permits in the unincorporated areas of the county. This means that any construction, alteration, or repair work that falls under the Oregon Building Code will require a permit from the Marion County Building Inspection Division. This includes structural, mechanical, plumbing, and electrical work.

Permit Triggers for Demolition Work During a Remodel

Demolition work during a remodel generally requires a permit. In Oregon, a demolition permit is typically required for any structure that originally required a permit to be built, or was built without one. For residential structures, including detached garages and accessory structures over 200 square feet, a demolition permit is necessary. If the intent of the demolition is to replace the structure with new construction, the demolition permit must be obtained and completed before a building permit for the new construction can be issued. It's also important to note that all structures must be checked for asbestos, and an asbestos verification form must be submitted with the permit application.

Permit Requirements for Altering or Converting Non-Living Spaces

Converting non-living spaces such as garages, attics, or unfinished basements into habitable living areas requires a building permit. This is because such conversions involve structural, electrical, and plumbing changes that must meet current building codes to ensure safety and habitability. In addition to a building permit, electrical, plumbing, and mechanical permits may also be required depending on the scope of the work.

Specific requirements for these conversions often include:

It's important to note that while the Oregon Residential Specialty Code (ORSC) provides the baseline requirements, local jurisdictions may have alternative standards or specific guidelines for conversion projects. For instance, some areas may have special standards for existing situations to make conversions more feasible.

Resources to Learn More

Note: The following state-wide building codes and regulations apply universally to all jurisdictions within Oregon, including Marion County.

Oregon Remodeler Legislation, Codes, and Guidelines

Oregon Building Codes for Remodelers and Residential Renovations

In Oregon, the Department of Consumer and Business Services (DCBS), through its Building Codes Division, is responsible for adopting, administering, and enforcing a uniform, statewide building code. This code governs construction and ensures minimum safety standards across the state. Many cities and counties administer and enforce these codes locally.

The state building code is comprised of various specialty codes. For existing buildings and renovations, the primary code is the 2021 Oregon Existing Building Code, which is based on the 2018 International Existing Building Code (IEBC) with Oregon-specific amendments. Other relevant codes include the Oregon Residential Specialty Code (ORSC) and the Oregon Structural Specialty Code (OSSC).

Generally, permits and plan review are required for remodels that involve structural changes, the creation of habitable space, alterations to openings, or modifications to electrical, plumbing, or mechanical systems. Cosmetic work, such as painting, replacing cabinets, or installing new flooring, is typically exempt from permits, provided it does not affect the structure or systems. However, even exempt work must comply with local zoning and code requirements.

Converting attics or basements into habitable living spaces is considered a structural alteration and will require permits and inspections.

Demolition guidelines vary by locality, but generally involve specific notification periods for property owners and may require deconstruction for older structures. For instance, some local ordinances may require a 15-day notice before demolition begins and specify procedures for debris removal and site restoration.

Recent legislative changes in 2024 and 2025 aim to streamline permitting processes for renovations. For example, municipalities over 15,000 in population may be prohibited from requiring frontage improvements as a condition for altering existing buildings, provided certain criteria are met regarding square footage, alteration cost, and occupancy classification.

Resources to Learn More

Select a City in Marion County

If your project is located within incorporated city limits, you will likely need to follow municipal ordinances rather than county rules. Select your city below to view local regulations.

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