Large Lot Industrial Site Assessment Project


Project Description

The Washington County Large Lot Industrial Site Assessment Project completed detailed site assessments for 15 large industrial sites (greater than 25 acres) within Washington County that are currently not development-ready.  

Please click on the interactive map below for more information about the individual sites:

Web_Graphic2 Industrial Lands

The primary purpose for this project was to evaluate industrial development sites throughout Washington County in order to identify common barriers to trade sector job growth and to leverage public investments to better promote private investment. With each development site, the project has identified opportunities and constraints, estimated costs, and timeline and process for project readiness for the selected industry user profile (warehouse, high tech manufacturing, industrial business park, etc.). The Washington County Industrial Site Readiness project is designed to serve as a guiding document to communities to better understand the impacts of the regulatory structure and the relationship between decisions on investments in infrastructure and jobs to their industrial opportunity sites.

Establishing a supply of development-ready large sites is critical to this region’s ability to attract and retain large industrial firms and generate traded-sector jobs that pay higher wages and improve the tax base for public services. Because the Portland region must compete with other metropolitan areas for such traded-sector industries, it must be able to provide a reasonable inventory of development ready sites to meet shrinking business decision timelines and capture investments with the upturn in the economy.

The project was completed through a partnership with Washington County and the cities of Forest Grove, Hillsboro, Sherwood, Tualatin, and Wilsonville, with technical assistance from the Port of Portland, Business Oregon, DLCD, and the Department of State Lands. This project built on the work of the Regional Industrial Site Readiness Project by using the same framework to complete the site assessments.


Overview of Project Sites

The 15 sites range in size from 25 to 225 net acres. Development timelines for the sites range from fifteen months to more than six years.


Project Publications & Resources

Executive Summary

Industrial Sites Assessment Report 2015 

Tonquin Employment Area Implementation Plan

Industrial Sites Presentation - Board of Commissioners June 9, 2015