Washington County Oregon Residential Permit Portal Guide
Washington County residential permits use a mix of downloaded applications, email or homeowner in-office submittal, BDAS for listed no-plan-review permits, and ProjectDox for plan uploads.
Residential Permit Portal
Washington County, Oregon
April 26, 2026
Permit takeaway
Washington County directs applicants to select the correct residential application, complete and digitally sign it, then submit by email or in office for homeowner applicants, with BDAS used for listed permit types.
Zoning and placement
The county recommends checking with staff to determine whether a grading permit is needed before completing the residential permit path.
Building and trade review
After staff set up the permit, applicants receive instructions for payment and electronic plan upload through ProjectDox.
Call before applying when
Call before applying if the project may need grading review, the correct application is unclear, the property is inside a city, or the work includes trade-only or solar-only scopes.
Documents to prepare
- Correct residential application
- Digital signature
- Plans
- Plan review fee
- Grading information if applicable
Inspection planning
- Choose application
- Submit application
- Pay plan review fees when instructed
- Upload plans to ProjectDox
- Track permits and schedule inspections through county portals
Official sources
- Washington County Residential Buildings
- Washington County Building and Development Application Services
- Washington County Building Services
This guide is a planning summary. Always verify the current requirements with the local office before starting work.