Judge Mary Thornton House | Trellis: Legal Intelligence + Judicial Analytics

The Honorable Mary Thornton House

Los Angeles Superior Court, Department retired (website)

Court Info

Los Angeles Superior Court, Department retired (website)


Mary Thornton House was a judge of the Superior Court of Los Angeles County in California until she retired in August of 2018. She was appointed to the bench by former governor Pete Wilson in January 1996. Judge House served as a Superior Court judge for over 20 years.

She received her B.A. from the University of California in 1975 and went on to earn her J.D. from the University of San Diego School of Law in 1978.

In 1978, she became an Assistant City Attorney for the Los Angeles Attorney’s Office, starting out as a criminal prosecutor, she made the switch to defending lawsuits brought against the City. She remained at the Attorney’s Office for 17 years, until her appointment to the Superior Court.

During the course of her career, House has taught as an adjunct professor at the University of Southern California, Gould School of Law. She has had memberships with several organizations such as the Los Angeles Bar Association, the Judicial Council’s Civil and Small Claims Advisory Committee and California Judicial Education and Research. In 2004 she received the Los Angeles County 2004 Woman of the Year award and the Pasadena Bar Association Judge of the Year Award, which are just a few of the many awards she has been the recipient of.

She went on to work for the Alternative Resolution Centers (ARC).


J.D. from University of San Diego School of Law (1978)

B.A. from University of California at Los Angeles (1975)


Assistant City Attorney at Los Angeles City Attorney's Office in Los Angeles County, California (1979 to 1996)

Judge at Los Angeles County Superior Court in Los Angeles County, California (1996 to 2000)

Adjunct Professor at University of Southern California's Gould School of Law in Los Angeles County, California (from 2014)

Arbitration & Mediation at Alternative Resolution Centers

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