Building Services

Andy Back, Planning and Development Services Manager

Scott Linfesty, Building Official

Welcome to Washington County Building Services. We are a full-service building permit office providing permitting, plan review and inspections for all phases of construction on commercial and residential properties in unincorporated Washington County and inside the city limits of Banks, Gaston and North Plains.

Additionally, we provide electrical permitting, plan review and inspections for the cities of Cornelius, Durham, Forest Grove, Sherwood, and Tualatin and plumbing permitting and inspections for the cities of Banks, Gaston and North Plains.

Where does your property reside?

Depending upon where your property is located will determine which building department you will contact to get the answers you need. To learn which jurisdiction your property resides, input your address in Metro's MetroMap website and contact the appropriate building department.

Additions? Garage conversions? New decks, sheds or fences? Give us a call!

Are you thinking about making changes to or on your existing property? Many changes may need to be approved through the Current Planning Development Assistance section. It's important to check with this section prior to applying for a building permit. In-person assistance is available Monday through Friday 8 a.m. - 4 p.m. during walk-in lobby hours. Phone assistance is available Monday through Friday 8 a.m. - 5 p.m. 

Asbestos Information from Metro
Taking asbestos-containing remodeling / deconstruction materials to their transfer stations


Videos! (English/Spanish)

  • How to locate Building Applications & Forms
  • How to Schedule an Inspection
  • What is Final Approval and Why do I need it?
  • What is the role of a Building Inspector? (English)


Other Resources:

Contact Us

NOTE: Building Services and other Land Use &Transportation offices have relocated during the seismic retrofit of the Public Services Building. Visit the "LUT locations during seismic retrofit" webpage for details about where LUT services are located.

Building Services
Email:  |  Phone: 503-846-3470  |  Fax: 503-846-3993

Inspection Request Line: 503-846-3699

Development Assistance
Email:   |  Phone: 503-846-8761  |  Fax: 503-846-2908

Physical Address:
Washington County, Adams Crossing Building
Building Services Section
161 NW Adams Ave.
Hillsboro, Oregon 97124

Walk-in Customer Lobby Hours:
Monday - Friday 8 a.m. - 4 p.m.

Customer Assistance by Phone:
Monday - Friday 8 a.m. - 5 p.m.

Mailing Address:
Washington County, Department of Land Use & Transportation
Planning and Development Services - Building Services
155 N. First Ave., MS12
Hillsboro, Oregon 97124