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Property Intelligence for West Seattle, WA
What public records reveal before you make an offer in West Seattle
Investigate a propertyWhat West Seattle Buyers Should Know
West Seattle carries both landslide risk along its coastal bluffs and Sound Transit construction disruption that will affect the neighborhood through the late 2030s. Older housing stock in The Junction and Alki means knob-and-tube wiring and galvanized pipes are common. The West Seattle Bridge closure (2020–2022) highlighted infrastructure dependency for the peninsula.
West Seattle is in King County, where CaveatBuyer analyzes 40+ data sources for every property. Geographic risks in this area include landslide-prone slopes in west seattle, magnolia, and beacon hill and seattle fault zone running east-west through downtown. A CaveatBuyer report connects these data points to the specific property you're considering.
West Seattle's Housing Stock — What Era Tells You
Pre-1940
- •Knob-and-tube wiring behind finished walls
- •Cast iron drain pipes nearing end of life
- •Original plaster walls concealing outdated systems
- •Lead paint on interior and exterior surfaces
1940s–1960s
- •Asbestos insulation in attics, pipe wrap, and floor tiles
- •Galvanized steel water pipes prone to corrosion and low flow
- •Oil-fired heating systems with potential buried tanks
1970s–1980s
- •Aluminum wiring in some homes (fire risk at connections)
- •Early forced-air HVAC systems aging out of service life
- •Polybutylene plumbing in some developments
What We Analyze for West Seattle Properties
West Seattle properties are covered by King County's full data source set. For every address, we pull from:
- ✓King County Assessor records (property details, tax history, sales)
- ✓King County GIS ArcGIS REST (parcel geometry, zoning, land use)
- ✓Seattle SDCI permits (building, electrical, mechanical, plumbing)
- ✓King County landslide and steep slope hazard zones
- ✓King County liquefaction susceptibility areas
- ✓FEMA National Flood Hazard Layer (NFHL)
- ✓EPA Superfund, Brownfields, and Toxic Release Inventory
- ✓WA DNR statewide geology (fault lines, slide-prone formations)
- ✓WA Department of Ecology well logs
- ✓WA dam safety inventory
- ✓SPU sewer classification and septic areas (Seattle)
- ✓Seattle City Light service area and energy data
- ✓Census Bureau geocoding and demographic data
- ✓Proprietary terrain and hazard analysis
- ✓Walk Score transit and walkability indexes
Other Cities in King County
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Enter any West Seattle address to see what public records reveal about the property — free, no account required.
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