skip to main content

DDES
900 Oakesdale Ave. SW
Renton, WA 98057-5212

Map

Phone:  206-296-6600
TTY Relay:  711

Service Center hours:*
Monday to Thursday,
7 a.m. - 5 p.m.;
Closed on Friday

* Read more about DDES hours

About / contact DDES

The Department of Development and Environmental Services (DDES) is the King County agency that issues building and land use permits for properties located in unincorporated King County. We also enforce county land use and building codes, staff the King County Fire Marshal Division, and issue business licenses.

DDES' Mission and Vision

Mission statement: To serve, educate and protect our community by shaping and implementing King County's development and environmental regulations.

Vision statement: DDES is a national leader promoting responsible and sustainable development to foster environmental quality, economic vitality and social benefit.

See DDES Mission, Vision & Values for the entire statement.

Contact information

Web www.kingcounty.gov/permits
Call 206-296-6600 for DDES customer service
206-296-6797 for permit application appointments
206-296-6659 for billing hotline
206-296-6696 for DDES records center
206-296-6680 for Code Enforcement
206-296-6628 for address information line
TTY Relay:  711
E-mail DDESWebInquiries@kingcounty.gov
Note: For property-specific questions, please provide parcel ID or address if known.
Address Department of Development and Environmental Services (DDES)
900 Oakesdale Avenue SW
Renton, WA 98057-5212
Map & Directions www.kingcounty.gov/property/permits/about/ddesmap.aspx
Hours

DDES Customer Service Center hours (exceptions noted under detailed services):

Monday  7 a.m. to 5 p.m.
Tuesday  7 a.m. to 5 p.m.
Wednesday  7 a.m. to 5 p.m.
Thursday  7 a.m. to 5 p.m.
Friday  Closed

Also see Vashon - Maury Island office information

Note:  DDES is closed on Fridays.  DDES hours changed as of the week of December 15, 2008.  Read more...

About the Permit Center

VideoPCwMediaPlayer
Watch this video* (5 min.) for an overview of DDES Permit Center services.

*To play this video, Windows Media Player is required; see free downloads (external link).