King County · FIPS 53033

Seattle, WA property data via API

Owner, year built, living sqft, sale prices, and tax values for Seattle addresses — sourced live from the King County assessor and returned as a single JSON response.

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Live example

Real lookup, real data

Below is the actual response returned for 3313 39th Ave W, Seattle, WA 98199 — sourced from the King County assessor at request time.

Request
$ curl -H "X-API-Key: pda_your_key" \
  "https://api.propertypulse.dev/v1/properties/lookup?street=3313%2039th%20Ave%20W&city=Seattle&state=WA&zip=98199"
Response (200 OK)
{
  "street_address": "3313 39TH AVE W",
  "city": "SEATTLE",
  "state": "WA",
  "zip_code": "98199",
  "county": "King County",
  "latitude": 47.6496,
  "longitude": -122.4069,
  "property_type": "single_family",
  "year_built": 1941,
  "sqft_living": 1900,
  "sqft_lot": 5626,
  "bedrooms": 3,
  "bathrooms": 2,
  "stories": 1,
  "heating": "Forced Air",
  "market_value": 1076000,
  "assessed_value": 1076000,
  "land_value": 826000,
  "improvement_value": 250000,
  "last_sale_price": 1165000,
  "last_sale_date": "2023-06-05",
  "owner_name": "PUGH KENNETH AND WOLF-PUGH",
  "zoning_code": "NR3",
  "jurisdiction": "Seattle",
  "subdivision": "PARKHURST ADD",
  "apn": "6662000060",
  "data_source": "King County Assessor (GIS + eRealProperty)"
}

Fields available for Seattle addresses

Plus universal fields like flood zones, demographics, schools, amenities, transit, and earthquake hazards.

  • Owner name
  • Year built, living sqft, beds, baths, stories
  • Land + improvement appraised values
  • Last sale price + date with seller / buyer
  • Historical sale count
  • Zoning, subdivision, jurisdiction
  • Heating system
  • APN / PIN

Other cities in King County

King County (~2.3M (King County), ~564k parcels with sale records) is supported in full — these cities are all included:

SeattleBellevueRentonKirklandFederal WayBurien

Try it on your own Seattle addresses

Free tier: 250 requests / month, no credit card.

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