Showing ordinances that apply to Cedar Mill CDP (part), Washington County, Oregon, OR

Cedar Mill CDP (part), Washington County, Oregon is an unincorporated community (population 17,258) in Washington County, Oregon. Because Cedar Mill CDP (part), Washington County, Oregon is not an incorporated city, it does not have its own municipal code. Instead, Washington County ordinances apply directly to properties here. The panel permits rules below are the ones that govern your area.

Cedar Mill CDP (part), Washington County, Oregon Solar Energy: Panel Permits Rules (2026)

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These county ordinances apply to unincorporated areas of Cedar Mill CDP (part), Washington County, Oregon. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

Key Facts

State Code: Oregon Solar Specialty Code
County Code

Summary

Washington County requires permits for residential solar installations under the Oregon Solar Installation Specialty Code. Most systems qualify for prescriptive (expedited) solar permits via the county's Building Services division and ePermitting.

Full Breakdown

Solar PV installations in unincorporated Washington County require a structural/prescriptive solar permit and a separate electrical permit through Building and Development Application Services (BDAS). Oregon uses the 2017 Oregon Solar Installation Specialty Code and prescriptive path under OAR 918-311. Most standard rooftop systems under the prescriptive limits (panel weight, roof pitch, wind/snow loads) do not require stamped engineering. Plans submit through ProjectDox. Fire setbacks follow Oregon Fire Code Section 1205: 18-inch pathways along roof ridges and 36-inch access for firefighters on hip roofs. Net metering is provided by PGE and Portland General Electric under Oregon Public Utility Commission rules. CDC 427 (Solar Access Standards) preserves solar access for lots in new subdivisions. Hillsboro, Beaverton, and Tigard each issue permits under the same statewide Oregon Solar Specialty Code.

Violations & Fines

Installation without permit: stop-work order, retroactive permit with investigation fee (typically 2x permit fee). Failed electrical inspection: correction notice. Utility interconnection missing: system must remain off-grid until PGE/PacifiCorp completes PTO.

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