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Our lobby services are closed. All permit applications can now be submitted online.

King County Permits has suspended lobby services in our Snoqualmie and Vashon Island offices. See available and alternative services

To ensure the safety of all customers and staff members, King County employees are following Public Health-Seattle & King County guidance and the Governor’s pandemic guidelines.

Potential Landslide Hazards (PDF)

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

Landslide Mapping for Permits, Potential Hazards in Unicorporated 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


35030 SE Douglas Street, Suite 210
Snoqualmie, WA 98065-9266

Mon, Tues, Thur, Fri:     7:30-11:30 am & 1:00-3:00 pm
Wednesday:     Closed