Metro manages the urban growth boundary for the Portland metropolitan area. Learn about this important land use planning tool for protecting rural lands and focusing investment in existing downtowns, main streets and employment areas.
Under Oregon law, each city or metropolitan area in the state has an urban growth boundary that separates urban land from rural land. Metro is responsible for managing the Portland metropolitan region's urban growth boundary.
The boundary controls urban expansion onto farm and forest lands. Land inside the urban growth boundary supports urban services such as roads, water and sewer systems, parks, schools and fire and police protection that create thriving places to live, work and play. The urban growth boundary is one of the tools used to protect farms and forests from urban sprawl and to promote the efficient use of land, public facilities and services inside the boundary.
Metro is responsible for managing the Portland metropolitan area 's urban growth boundary and is required by state law to have a 20-year supply of land for future residential development inside the boundary. Every five years, the Metro Council is required to conduct a review of the land supply and, if necessary, expand the boundary to meet that requirement. This is called the urban growth management process. When undertaking this review, Metro also considers needs for future jobs in the region during this same 20-year period. The current urban growth boundary encompasses approximately 400 square miles. As of 2012, about 1.5 million people lived within the urban growth boundary.
The Columbia Region Association of Governments, Metro's predecessor, engaged in a complete planning process and proposed an urban growth boundary for the region in 1977. When Metro was created by voters in 1979, it inherited the boundary planning effort. A year later, the Land Conservation and Development Commission approved the boundary as consistent with statewide planning goals.
The location of the Metro urban growth boundary involved more than simply drawing a line on a map. The plans and growth projections of Washington, Multnomah and Clackamas counties, along with 25 cities and more than 60 special service districts had to be accommodated. The initial urban growth boundary was based on a projection of the need for urban land as well as the land development plans of individual property owners.
The urban growth boundary was not intended to be static. Since the late 1970s, the boundary has been moved about three dozen times. Most of those moves were small – 20 acres or less. There have been other times when the Metro Council approved larger, legislative additions:
To view MOV files, download free QuickTime.
State law defines the criteria that are used to determine the order in which lands are included within the urban growth boundary. In general, high priority lands must be included before lower priority lands can be added.
The urban growth boundary is dynamic and can be changed by conducting any of three types of amendments: legislative, major or minor.
Enter an address or intersection to see a map that shows whether a property is inside the urban growth boundary or within an urban or rural reserve.
The urban growth boundary and the Metro jurisdictional boundary are not the same line. Some areas are inside the urban growth boundary but outside the Metro boundary, and some areas are inside the Metro boundary but outside the urban growth boundary.
Every five years Metro assesses the capacity of the region's urban growth boundary to accommodate population growth. Learn about the milestones and timeline for the Metro Council's next growth management decision, anticipated at the end of 2015.
Learn more about the Metro Council's decision to support good jobs, protect farmland and invest in our region's future.
Read about the unique collaborative process the region used to choose the best places for future growth, identifying lands that won't be urbanized for the next 50 years as well as areas best suited to accommodate future urban development.