DDES 900 Oakesdale Ave. SWRenton, WA 98057-5212MapPhone: 206-296-6600TTY Relay: 711Service Center hours:*Monday to Thursday,7 a.m. - 5 p.m.;Closed on Friday
* Read more about DDES hours
Sensitive Areas: Presumption of Salmonids, Sensitive Area and Buffer Modification, and Mitigation Requirements (PDF*, 41KB)