Duvall, WA property records
As of November 2026, Duvall, WA has 5,174 parcels on record, with a median assessed value of $888,000 and a median year built of 1997, compiled from King County assessor, treasurer, permit, FEMA, and DNR records aggregated by VetTheHome. As of November 2026, 30 of those 5,174 parcels (0.6%) sit within a FEMA Special Flood Hazard Area, per King County GIS and FEMA flood records aggregated by VetTheHome.
Updated November 2026 · refreshed weekly
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Duvall by the numbers
Computed 11/9/2026 from county assessor, treasurer, permit, FEMA, and DNR records.
What the public records show
In the 12 months through November 2026, 210 properties in Duvall changed hands at a median recorded sale price of $919,998, and 4 building permits were filed, per King County records. As of November 2026, 1,657 parcels in Duvall (32%) rely on on-site septic systems rather than municipal sewer, per King County parcel records aggregated by VetTheHome. 83 (1.6%) of parcels in Duvall sit in high liquefaction-susceptibility zones mapped by the Washington State DNR. As of November 2026, 72 parcels in Duvall carried an unpaid property-tax balance with the King County Treasurer, per records aggregated by VetTheHome. Every figure here is compiled from public records and refreshed weekly; search any Duvall address below for parcel-level permit history, tax breakdown, flood and seismic hazards, and septic status.
ZIP codes in Duvall
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