Transportation Concurrency Management Program

The King County Council adopted a Transportation Concurrency Management requirement in Ordinance 11617, on Jan. 9, 1995 and revised it under Ordinance 2007-0149, on June 22, 2007. The ordinance established a concurrency management system which assures adequate transportation facilities are available to meet the requirements of any new development in King County.

A concurrency review must be completed by a Road Services Transportation Planner before you can apply for a development permit in unincorporated King County.

To begin the concurrency review process, fill out and submit a concurrency application. A Certificate of Concurrency is issued by the Planner when concurrency review is successful. The Certificate of Concurrency is needed prior to application for most development permits.

• Frequently-asked concurrency questions
• Concurrency application (90KB .pdf)
• County Code Title 14 — Chapter 14.70 (324KB .pdf)
• Concurrency map and attachments

Check your property's concurrency zone

Check your property's transportation concurrency zone using the King County Geographic Information System Parcel Viewer. After you find your property, click on "Districts Report" located on the lower left-hand side of the page. Scroll down to find the concurrency zone number.

To view the Acrobat .pdf files linked above you will need to use the free Adobe Acrobat Reader software.

For further information, please contact:

Jeff Lee, Transportation Planner
King County Department of Transportation
Road Services Division
201 South Jackson Street MS KSC-TR-0317
Seattle, WA 98104-3856
Phone: 206-263-4759
Fax: 206-296-0566

Updated: Sept. 19, 2007