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Development Services

We administer sanitary sewer, surface water management, and erosion control programs in urban areas of Clackamas County.

Plan review and permitting are part of the broader land use and permitting process in unincorporated Clackamas County, City of Happy Valley, and Rivergrove. We review and approve all public and private sanitary, storm, and erosion control plans for development activities such as:

  • Any activity that requires a building permit Construction of structures, roadways, and utilities
  • Grading or excavating
  • Land division, including subdivisions, land partitions, and lot line adjustments

Phone:503-742-4567
Fax:503-742-4565
Email:wescustomerservice@clackamas.us

150 Beavercreek Road #430, Oregon City, OR 97045

Office Hours:

⚠ Visit our Closures page for the latest information about office closures.
We also encourage you to call before visiting any county office.