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Most King County offices will be closed on Monday, for Memorial Day.  
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Permitting services are available online via this website and For details and information about our new location and office hours, see our Customer Service Bulletin.


An Affidavit of Correction allows a professional land surveyor to correct errors and/or omissions of fact on any recorded subdivision, short subdivision, or boundary line adjustment. Must be prepared by licensed Land Surveyor registered in the State of Washington. See also Plat Alteration Submittal Instructions. For questions, please contact customer service at 206-296-6600 or email

See the current fee schedule for an estimate.

Where can I get an application?

Download the application forms below.

  • Affidavit of Correction of Boundary Line Adjustment, Form (PDF)
  • Affidavit of Correction of Plat, Form (PDF)
  • Affidavit of Correction of Short Plat, Form (PDF)

If you have questions or would like to inquire about alternatives, please email

How do I submit my application?

See our Customer Service Bulletin for submittal information.

What is the timeline for processing an Affidavit of Correction?

Varies 3 to 6 weeks depending on workload and resources available.