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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


150 Beavercreek Road Room #430 Oregon City, OR 97045

Office Hours:

⚠ Due to COVID-19, our offices are closed to the public. At this time the closure is expected to continue through June 15. Our employees are available and working to meet your needs remotely.