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Judge Mark Larrañaga - Superior Court

How to contact a King County Superior Court judge and get ready for your trial or motion.

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Court in recess

Judge Larrañaga’s court will be at recess and out of the office from July 23 - August 7.  Please do not note motions for consideration during this time.  Any motions that have been noted will be considered as soon as the Court is able upon his return to the office.

photo of Judge Larranaga

• Courtroom Number: 4H

• Bailiff: Bren Smith

• Department: 33

• Assignment: General Trials



Judge Mark A. Larrañaga was appointed to the King County Superior Court bench on May 7, 2023, by Governor Jay Inslee. Judge Larrañaga is currently assigned the general (civil and criminal) trial rotation at the Maleng Regional Justice Center in Kent, Washington.

Judge Larrañaga earned his bachelor’s degree at San Diego State University and law degree at Gonzaga University School of Law. Judge Larrañaga came to bench after 30 years of trial and appellate experience. He has tried complex cases in state and federal court, including month-long capital cases. He has successfully argued to the Washington and Oregon State Supreme Courts and all three divisions of the Washington State Court of Appeals.

In 2001, he was appointed to be the director of Washington State’s first death penalty assistance center, where he provided training, lectures, and assistance to death penalty attorneys and testimony to the Washington State legislature regarding various aspects of Washington’s death penalty system.

He voluntary resigned in 2005 to go into private practice. Because of his comprehensive courtroom experience and work with experts in a wide range of areas, he was deemed “learned counsel” by state and federal courts to handle capital trials and appeals in Alaska, California, Colorado, Idaho, Oregon, and Washington.

Judge Larrañaga was an adjunct professor at Seattle University School of Law from 2005 – 2018 and was co-author of An Analysis of the Economic Costs of Seeking the Death Penalty in Washington State, Seattle Journal for Social Justice, Vol. 14, Issue 3, Spring 2016.

Since his appointment to the bench, Judge Larrañaga has presided over both criminal and civil cases. He is a member of King County Superior Court’s Jury Committee and is currently co-chair Washington’s Administrative Office of the Courts (AOC) Childcare Workgroup to make recommendations for the creation of a childcare assistance program for individuals reporting for jury service. 



Civil Cases—Guidance for Parties

Electronic Filing and Service by Attorneys

Counsel should review LGR 30, which requires e-filing of most documents and requires attorneys to “promptly register to accept e-service via the Clerk’s eFiling application” unless a waiver is obtained. Unrepresented parties have the option of utilizing these services. Judge Larrañaga e-files orders regularly.

Electronic Working Copies

Judge Larrañaga prefers to receive electronic working copies submitted to the Clerk using the Clerk’s e-Filing Application pursuant to LCR 7(b)(4)(F)(i). Please note: if your pleadings refer to materials which were previously filed within the court record, please reference the pleading by both the document title and sub number (eg: Declaration of Bob Jones, Sub #5) within the court docket. If a party’s submission exceeds the 500-page limit, you may request prior permission from Judge Larrañaga’s bailiff to deliver the working copies in PDF format, either on disk or thumb drive (and delivered to the Judge’s Mailroom). Prior permission should be requested by sending an email to Please do not email any working copies directly to the Court or to her bailiff without prior permission. Please put in the upper right corner of the working copies the note date of consideration or hearing, Judge Larrañaga’s name, and by whom the documents are being presented (“moving party,” “opposing party,” or other descriptive or identifying term).

Requests for Oral Argument on Non-Dispositive Motions

If you wish to have oral argument on a non-dispositive motion, please note the motion without oral argument and note "ORAL ARGUMENT REQUESTED" on the first page of your motion or opposition. Judge Larrañaga will consider the request when he reviews the motion on the date noted for hearing without oral argument. If the Court decides to allow oral argument, the bailiff will contact all parties to schedule a date and time for oral argument on the motion. If the Court declines to set oral argument, you will receive a courtesy copy of any order that is entered.

Dispositive Motions and Hearing Requests

Dispositive motions are typically heard on Fridays. Requests for hearing dates are accepted by emailing the bailiff at Judge Larrañaga requires that you check with opposing counsel before scheduling any hearing in order to make sure that the date works for all counsel. Doing so reduces the need to reschedule hearings due to conflicts. Parties should contact the Court as soon as possible, as timeslots are limited and generally fill at least a couple months in advance. If multiple parties are requesting a dispositive motion to be heard, it is this Court’s practice to generally hold them on the same date, in the interest of judicial economy.

Any email request for a dispositive motion hearing must include the following:

Case name and cause number Nature of the motion(s) to be heard A preferred date range

Judge Larrañaga may consider providing additional time on hearings involving multi-party cases or complex litigation. If you are requesting additional time, please advise the bailiff of your basis for the request when scheduling.

Compliance with LCR 7(b)(5)(B)(vii) Consecutive Page Numbering for Attachments is Required

Attachments or exhibits in excess of 25 pages, including attachments to motions, oppositions, replies, briefs, declarations, and affidavits, shall be numbered consecutively on the bottom center or right-hand corner of each document. This aids the court and the parties in navigating through the voluminous document. The number shall not restart for each attachment but shall run consecutively through all the attachments to the document. You must cite to these page numbers in all motions, oppositions, replies, and briefs. A party may include other citation information, such as exhibit numbers, corresponding exhibit pages or paragraph numbers, in addition to the consecutive page cite. Failure to follow this rule can result in the Court delaying your hearing or matter until all parties have complied.

Family Law Resources

Access a list of General Family Law Resources for low-cost assistance with family law matters. For parties navigating a dissolution, please refer to the Family Court page for more information and resources. For parties without an attorney, please review the services provided through the Family Law Facilitators - King County. They are a wonderful resource to answer questions on how to navigate through your case to resolution.

Settled Cases and to Strike a Motion

Please call or email the bailiff immediately if a case settles or if you wish to strike a motion you have filed from the court’s calendar. Trial courts are not notified when a case otherwise resolves through the ex parte department, or when a Notice of Settlement is filed within the Court record.