Property research in King County, WA
Research Seattle-area parcels using King County address, assessment, zoning, and boundary data.
Search a King County property
Enter a complete street address, city, state, and ZIP code for the best match.
Property lookup is free. AI-generated reports require an account and use your plan allowance.
Information available through ParcelPilot
- Parcel number, primary address, acreage, and boundary
- Appraised land and improvement values when available
- County zoning identifier
- FEMA flood-map intersection
Source availability differs by parcel. A field marked unavailable means the connected public source did not return that fact; it does not establish that the condition is absent.
Communities within this coverage area
Coverage includes addresses in Seattle, Bellevue, Redmond, Kent, Renton, Kirkland, Issaquah, and other locations within King County. Municipal boundaries and postal city names do not always match, so confirm the responsible jurisdiction before relying on zoning or permitting information.
Primary parcel source
ParcelPilot connects to King County Parcels with Address and Property Information. County and appraisal data can change after ParcelPilot retrieves it. Open the source and contact the responsible government office when a fact affects a purchase, development, insurance, tax, or legal decision.
A practical research workflow
- Match the street address to the parcel identifier and mapped boundary.
- Review the returned acreage, assessment, jurisdiction, zoning, and FEMA facts that are available.
- Follow the source links and confirm material facts with the responsible county or municipal office.
- Use qualified legal, surveying, engineering, insurance, tax, or planning professionals when the decision requires their expertise.
Preliminary research—not an official determination
ParcelPilot organizes public-source information and optional AI explanations. It does not provide a survey, appraisal, title opinion, zoning determination, flood determination, legal advice, or guarantee of development feasibility.