Search for your septic records using this tool: kingcounty.gov/SepticRecords
What records are available?
Records are available for both new construction and repairs to failing systems. Approved on-site sewage/septic system site design applications submitted online since May 2019 are also available.
Why can't I find my record?
Online records are not available if:
- The home was built before the early 1970s.
- The on-site sewage/septic system was installed without a permit.
- The on-site sewage/septic system designer did not submit final construction documents to Public Health.
- The property address or parcel number has changed. Some addresses have changed, especially within areas incorporated into cities recently. Some parcels have been re-platted since the original documents were submitted. In these cases, it is helpful to search with the original house address.
- Record drawings may be in our microfiche files but not yet scanned into the electronic database. You may wish to contact the septic system designer or engineer for a copy.
- Many pre-1998 records are available but may not be as accurate, legible, or as detailed as recent record drawings.
OnlineRME - Find operation and maintenance records by address or parcel number. Make sure to choose "King County" before searching. Updated record drawings/site sketches may be found attached to the Time of Sale Inspection Reports under Application History.
Search King County records - Search our free online database of King County's official records.
King County Parcel Viewer - A search utility to find King County parcel information. You can search by address, parcel number, or by zooming in on the map and selecting a parcel.
King County iMap - View King County spatial information (GIS data and images) in an interactive map display.