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King County deeds and property records

Owner and value: the King County Assessor. Tax bills: the King County Treasury Operations. Deeds: the King County Recorder's Office. Each official search is below, with copy fees, the appeal route and the Washington rules that apply.

Last checked against official sources on .

On this page
  1. Look up a property, its owner and its tax
  2. Deeds: search the index and order copies
  3. Disagree with the value? Appeals
  4. Who does what in Washington
  5. Questions people ask
  6. Official copies vs look-alike sites
  7. Sources

Look up a property, its owner and its tax

The King County Assessor keeps the parcel record: owner of record, value and property details.1 The King County Treasury Operations bills and collects the tax.2 The deed itself, which proves the transfer, is at the King County Recorder's Office.3

Parcel and owner search
blue.kingcounty.com/… (eReal Property Search)4
Tax bill search
payment.kingcounty.gov/Home/Index (view account or pay online; service fee for card/e-check payment)5
Parcel map (GIS)
gismaps.kingcounty.gov/parcelviewer2 (Parcel Viewer); iMap interactive mapping tool6

King County Assessor

Address
King Street Center Customer Service Center, 201 South Jackson Street, 2nd floor, Seattle, Washington 981047
Mail
KSC-AS-0708, 201 South Jackson Street, Seattle, WA 981047
Phone
206-296-7300 (real property information)7
Hours
Monday through Friday 8:30 a.m. to 4:30 p.m.7

King County Treasury Operations (Finance and Business Operations Division)

Address
201 S. Jackson St., Seattle, WA 98104 (in person: King County Customer Service Center, second floor)8
Mail
King County Treasury, 201 S. Jackson St., Suite 710, Seattle, WA 98104 (property tax payments by mail)5
Phone
206-263-2890 (Property Tax Customer Service)8
Hours
Customer Service Center open Monday through Friday 8:30 a.m. to 4:30 p.m., closed King County holidays5

Deeds: search the index and order copies

Online search
recordsearch.kingcounty.gov/LandmarkWeb6Free search, fee for copies
Cost
Free (search and view); copies for a fee6
Who runs it
Landmark Web (Landmark Records Search), linked by the Recorder's Office at recordsearch.kingcounty.gov6
Years online
Most documents recorded on or after August 1, 1991 (the copy-request page says unofficial images back to 1976 are returned); parcel-ID searches cover 1997 to current6
Copy fee
Uncertified recorded documents, legal size or smaller: $1 per page9
Certified copy fee
Certified recorded documents, legal size or smaller: $3 for the first page, $1 for each additional page9
How to order
Online through Records Search (Log On, add to cart; uncertified copies download immediately, certified copies are mailed within five business days); by mail with the Recorded Document Copy Request Form and check/money order payable to King County Recorder; or in person at 201 S. Jackson St., second floor. Documents recorded before August 1991 are ordered from King County Archives.9

What Washington law sets for every county:

Copy fee
$1 per page (noncertified copies, up to 8.5x14 in.)10
Certified copy fee
$3 first page, $1 each additional page (certified copies)10
How to search
Search the county auditor/recorder's online official records index where offered (e.g., King County free online records search; parcel search 1997-current) or request copies at the counter or by mail.11

King County Recorder's Office (Records and Licensing Services, Department of Executive Services)

Address
201 S. Jackson St., Suite 204, Seattle, WA 98104 (King County Customer Service Center, King Street Center)2
Mail
King County Recorder's Office, 201 S. Jackson St., Ste 204, Seattle, WA 981046
Phone
206-477-6620 (phone hours 9 a.m. - 2 p.m. weekdays); TTY Relay 7112
Hours
In person 8:30 a.m. - 4:30 p.m. weekdays; recording ends at 3:30 p.m.2

Disagree with the value? Appeals

Appealing a value
King County Board of Appeals and Equalization (independent of the Assessor); file online via eAppeals blue.kingcounty.gov/… or by mail12

The Washington rules:

Appealing a value
Petition the county board of equalization by July 1 of the assessment year or within 30 days of the value-change notice (some counties allow up to 60 days), whichever is later; appeal BOE decisions to the state Board of Tax Appeals within 30 days.13

Who does what in Washington

Who does what
County assessor values property; county treasurer bills and collects; Department of Revenue supervises.14

Liens on a property

Fixture filings
Fixture filings, as-extracted collateral and timber: county office where a mortgage on the real property is recorded (county auditor).15
Federal tax liens
Real property: county recorder (auditor) where property is located; personal property: Department of Licensing.16

Questions people ask

How do I find who owns a property in King County?

Search the parcel records of the King County Assessor by owner name, address or parcel number: blue.kingcounty.com/…4

Where do I look up a King County property tax bill?

The King County Treasury Operations (Finance and Business Operations Division) has the tax bill search: payment.kingcounty.gov/Home/Index5

How much is a certified copy of a deed in King County?

Certified recorded documents, legal size or smaller: $3 for the first page, $1 for each additional page. Copies come from the King County Recorder's Office (Records and Licensing Services, Department of Executive Services).9

Official copies vs look-alike sites

A certified copy comes only from the office that holds the record; reports and "research copies" sold by commercial sites are not issued by any King County office. How to tell an official record source from a paid look-alike.

Sources

Every fact above links to the official page it comes from; all 16 sources were checked on November 4, 2026. Fees and rules change, so check the office's own page before you pay or travel.

  1. County assessor and treasurer websitesWashington Department of Revenue
  2. Recorder's OfficeKing County, Washington
  3. King County home pageKing County, Washington
  4. King County Assessor
  5. Property taxKing County, Washington
  6. Online records search - Recorder's OfficeKing County, Washington
  7. Contact the AssessorKing County Assessor
  8. Treasury OperationsKing County, Washington
  9. Request copies of recorded documentsKing County, Washington
  10. RCW Chapter 36.18 Fees of county officersWashington State Legislature
  11. Online records search - Recorder's OfficeKing County, Washington
  12. Appealing a valuationKing County Assessor
  13. RCW Chapter 84.40 Listing of propertyWashington State Legislature
  14. Property taxWashington State Department of Revenue
  15. RCW 62A.9A-501 Filing officeWashington State Legislature
  16. RCW Chapter 60.68 Federal liensWashington State Legislature