The county building department in Washington County administers construction permits and enforces building codes for unincorporated areas and municipalities that contract county services rather than maintaining their own building divisions. There are 8 Building Departments locations in Washington County, Oregon.

Property owners in unincorporated Washington County should verify with the county building department whether their parcel falls under county or municipal jurisdiction before submitting permit applications, as this affects which office handles the review and which codes apply.

List of Washington County, Oregon Building Departments

Beaverton Building Department

View Details Call Now (503) 526-2403

Beaverton Building Department

Address
Get Direction
Hours

Beaverton Zoning

Address
Get Direction
Hours

Cornelius Building Department

View Details Call Now (503) 357-7099

Cornelius Building Department

Address
Get Direction
Hours

Tualatin Planning Department

View Details Call Now (503) 691-3026

Tualatin Planning Department

Address
Get Direction
Hours

Tigard Building Department

View Details Call Now (503) 639-4171

Tigard Building Department

Address
Get Direction
Hours

Hillsboro Planning Department

View Details Call Now (503) 681-6153

Hillsboro Planning Department

Address
Get Direction
Hours

Washington County Building Department

View Details Call Now (503) 846-3470

Washington County Building Department

Address
Get Direction
Hours

Washington County Zoning

View Details Call Now (503) 846-2887

Washington County Zoning

Address
Get Direction
Hours

Contractors and property owners in Washington County should keep copies of all issued permits, approved plans, and inspection sign-off cards at the job site for the duration of construction. Final inspection requests must be scheduled in advance, and the certificate of occupancy is issued only after all required inspections pass.

You may also find Building Departments locations in neighboring counties including Clackamas, Washington, Multnomah.