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

Oregon, Clackamas County Remodeling and Renovation Permit Requirements

Clackamas County's Building and Safety Division acts as the Authority Having Jurisdiction (AHJ) for building permits in unincorporated areas of the county. For properties within incorporated cities, the respective city's building department is the AHJ.

Unincorporated Areas

In unincorporated Clackamas County, most remodeling and renovation projects that involve structural changes, alterations to electrical, plumbing, or mechanical systems, or changes in occupancy require a permit. It is always recommended to contact the Building and Safety Division directly to determine specific requirements for your project.

Demolition Work

Demolition work during a remodel often triggers permit requirements. This can include:

Full or partial demolition of existing structures.
Removal of load-bearing walls.
Significant alterations to the building envelope.

Specific requirements for demolition permits will depend on the scope of the work and may involve inspections and adherence to safety regulations.

Converting Non-Living Spaces

Converting non-living spaces such as garages, attics, or unfinished basements into habitable living areas typically requires permits. This process involves ensuring that the converted space meets current building codes for:

Habitability standards.
Egress (exits).
Ventilation.
Insulation.
Structural integrity.
Electrical and plumbing systems.

The definition of "habitable space" generally refers to areas intended for sleeping, living, or cooking. Projects that add square footage or change the use of a space from non-habitable to habitable will necessitate a building permit and subsequent inspections.

Resources to Learn More

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

Help Us Improve This Guide

Did you find a dead link, or do you have the direct link to the Clackamas County permit application portal? Help us keep this information accurate by submitting an update.