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, the 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 #430, Oregon City, OR 97045

Office Hours:

Lobby hours
Monday to Thursday
7:30 a.m. to 5 p.m.

Phone hours
Monday to Thursday
7:30 a.m. to 5:30 p.m.

Customer service

Development services and permits

Related Events
Board of County Commissioners, Water Environment Services, North Clackamas Parks and Recreation
Water Environment Services
Water Environment Services