Orange County Probate Court: Where Your Case Is Heard and What Selling Costs

Orange County hears decedents’ estates at the Costa Mesa Justice Complex, 3390 Harbor Blvd., Costa Mesa, CA 92626, with the probate clerk’s office on the first floor, and the fee to open a case is $435. Much of the advice circulating online still sends people to the Lamoreaux Justice Center or to Central Justice Center in Santa Ana. Both are wrong for probate, and showing up at the wrong building is a wasted morning.

The Building, the Departments, and a Calendar That Moved

Probate and mental health matters share the Costa Mesa complex. Estate, conservatorship, guardianship, trust and minor’s compromise calendars are spread across departments CMMC and CM01 through CM08. The court’s probate line is (657) 622-8452, and Probate Court Services, which handles guardianship and conservatorship investigations, is at (657) 622-8455.

Departments are not static. Effective 6 July 2026 the court reshuffled several calendars: Monday 9:00 a.m. accounts moved from CM03 to CM08, Tuesday 1:30 p.m. conservatorships from CM08 to CM05, Thursday 9:00 a.m. accounts from CM06 to CM03, and Thursday 1:30 p.m. estate matters from CM07 to CM06. If you are relying on a department number from an older filing or an older blog post, check the court’s current hearing page before you calendar anything.

What the Court Actually Charges

Orange County publishes a civil fee schedule, and the probate items on it are statewide amounts rather than local inventions:

• Petition for letters testamentary or letters of administration — $435 (Gov. Code § 70650(a))
• Objections to the petition — $435 (§ 70650(b))
• A competing petition filed later by a different person — $435 (§ 70650(c))
• Special letters without general powers — $200 (§ 70657.5(a)(3))
• Petition to sell or exchange estate property after letters issue — $435 (§ 70658(a)(1))
• Petition to settle an account — $435 (§ 70658(a)(2))
• Depositing an estate planning document with the court — $20 (§ 70660)
• Small estate affidavit — $45 (§ 70626(b)(9))

Note the sixth line. If the personal representative holds only limited authority, the petition to confirm the sale of the house is its own $435 filing on top of the one that opened the case. Publication in an Orange County newspaper of general circulation is a separate cost paid to the publisher, not to the court.

The Probate Referee Sets the Number, Not You

When the court appoints a personal representative it also designates a probate referee from the panel appointed by the California State Controller. The referee, not the family and not a listing agent, appraises the real property for the estate inventory. The commission is one-tenth of one percent of appraised value, with a floor of $75 and a ceiling of $10,000, and the referee is expected to return the appraisal within roughly 60 days.

That appraised figure matters to a seller because the court measures any later sale price against it. The inventory and appraisal, Judicial Council forms DE-160 and DE-161, are due within four months of appointment.

Probate Notes: Orange County’s Early Warning System

This is the single most useful local feature and the one most out-of-county filers miss. Examiners review each petition before the hearing and post written notes listing every defect, typically three to four weeks ahead. They are searchable through the court’s probate notes portal, and the court will send a text message when notes post on your case.

Clear the notes and the hearing is usually short. Leave them uncleared and the judge continues the matter, which in practice costs weeks, not days — and if a buyer is waiting on letters, those weeks are the whole delay. The court runs a workshop on clearing notes and accepts questions at its probate calendar email address, though it will not resolve disputes about a requirement that way.

Selling the House: Full Authority Versus Limited

Under the Independent Administration of Estates Act, a representative with full authority can sell real property after mailing a Notice of Proposed Action, form DE-165, to everyone entitled to notice at least 15 days before acting. A detail that trips people up: someone other than the representative has to do the actual mailing.

With limited authority, the sale goes to a confirmation hearing, and the courtroom overbid process means an accepted offer is not final until the judge says so. The mechanics are the same ones we walk through for selling a house through Los Angeles County probate; the difference is the calendar, and Orange County is generally the lighter of the two.

Other deadlines that shape the timeline: 30 days to allow or reject a creditor’s claim, and up to 90 days to notify the Department of Health Care Services about possible Medi-Cal recovery. First available hearing dates commonly run several weeks to a couple of months out depending on the department, and a full administration with real property in it typically takes nine to eighteen months end to end.

When a Cash Sale Is the Wrong Move Here

If the estate is not actually in probate — the house was in a living trust, or held in joint tenancy, or a Heggstad petition can pull it into an existing trust — you may not need the court at all, and selling on the open market on a normal timeline will almost certainly net more. The same is true if the property is clean, financeable and the heirs are in no hurry: a confirmed probate sale with overbidding can produce a strong price precisely because the court invites competition.

A cash sale earns its discount when the house cannot be shown or financed, when carrying costs and insurance on a vacant Orange County property are eating the estate, when heirs live out of state, or when a buyer who understands confirmation and overbid is worth more than a buyer who will walk when the first continuance lands. Ask about whether probate is required at all before you assume it is.

This is general information, not legal advice, and Orange County’s departments and calendars change — confirm current details with the court or your probate attorney. If you want a no-obligation cash offer from a buyer who has sat through confirmation hearings, Cash Home Buyers CA can provide one and work around your hearing dates.