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Permitting services are available online via this website and For details, see our Customer Service Bulletin.

Potential Landslide Hazards (PDF)

This summary briefly describes the landslide hazard map and details its limitations.

Landslide Mapping for Permits, Potential Hazards in Unincorporated King County (PDF)

This report describes the techniques and data employed in creating the map of potential landslide hazards now available on iMap.)

Potenial landslide hazard and steep slope hazard map

In iMap, go to layers and select Environmental Sensitive Areas to see all the sensitive areas.

Landslide hazards in King County

King County has updated mapping information on landslide hazard areas.

Landslide hazards along King County river corridors

This mapping shows potential landslide hazard areas along the river valley walls and floodplains.

Landslide preparation and resources

How to prepare for landslides, what to do during a landsldie, and other information.

Department of Local Services, Permitting Division
919 SW Grady Way, Suite 300
Renton, WA  98057

Most of our staff members are working remotely. Most permitting services are available on this website and Beginning June 23, 2022, some in-person services will be available in our Renton office. For details, see our Customer Service Bulletin.

Ask us a question  « Fill out our form to get a response

To reach customer service, call 206-296-6600 during the following hours: 9-11 a.m. and 12:30-2:30 p.m., Monday, Tuesday, Thursday, Friday.