Probate in Contra Costa County: What Walnut Creek Families Need to Know in 2026
When a Walnut Creek family walks into my office after losing a loved one, probate is usually the word they’re hoping not to hear. And I understand why.
Probate has a reputation — and much of it is deserved. It can be slow, expensive, and public at a time when families most need simplicity and privacy.
But probate in Contra Costa County doesn’t have to be a mystery. In 2026, California’s probate rules look different than they did even two years ago, and there are some meaningful changes Walnut Creek, Concord, Pleasant Hill, Lafayette, Danville, and San Ramon families should understand. Here’s what I want our neighbors in the East Bay to know.
1. Probate in Contra Costa County Happens in Martinez
If a Contra Costa County estate goes through formal probate, the case is filed
with the Superior Court at the Wakefield Taylor Courthouse in Martinez. This is the only courthouse in the county that handles probate matters. Every hearing, every filing, and every order comes out of that one department. For families in Walnut Creek and the surrounding communities, this means trips to Martinez, coordination with the court clerk’s office, and a process that moves on the court’s schedule — not yours.
2. Many Small Estates No Longer Require Full Probate
California’s Assembly Bill 2016, effective for deaths occurring on or after April 1, 2025, made significant updates to the small estate rules. For 2026, two thresholds matter:
The personal property threshold is now $208,850. If the total value of the deceased’s personal property (bank accounts, vehicles, investments held in their name alone, personal belongings) falls at or below this amount, families can often use a simplified Small Estate Affidavit under Probate Code Sections 13100–13106, rather than opening a full probate case.
A new simplified process exists for primary residences valued at $750,000 or less. Under AB 2016, if the decedent’s primary residence is worth $750,000 or less at the date of death, heirs may file a Petition to Determine Succession to Real Property — a streamlined process that avoids full probate administration.
These thresholds are a meaningful improvement for California families. But given Bay Area real estate values, many Walnut Creek homes still exceed the $750,000 mark, which means formal probate remains a real possibility for families who haven’t done planning in advance.
3. Formal Probate Typically Takes 12 to 18 Months
When full probate is required, Contra Costa County families should expect the process to take at least 12 months, and often longer. Court backlogs, creditor notice periods, asset appraisals, and the four-month creditor claim window all add time. I’ve seen straightforward cases resolved in about a year, and I’ve seen contested cases stretch to two or three years. During that time, assets are generally frozen, distributions are delayed, and the family is paying the carrying costs.
4. Probate Is More Expensive Than Most Families Expect
California sets statutory attorney and executor fees based on the gross value of the estate — not the net. That means a $1 million estate with a $600,000 mortgage still pays fees calculated on the full $1 million. For a Walnut Creek homeowner whose primary asset is a house, this is often a surprise. Probate also involves court filing fees, publication fees, appraisal costs, and bond premiums in some cases.
5. A Properly Funded Living Trust Avoids All of This
The single most reliable way to keep your family out of Contra Costa County probate is a properly drafted and fully funded revocable living trust. I emphasize fully funded because I’ve seen too many trusts created years ago that were never updated when the family refinanced, bought a new home, or opened new accounts. An unfunded trust is a plan on paper, not a plan in practice.
What Walnut Creek Families Should Do
If you’ve recently lost a loved one and you’re unsure whether probate is required, the first step is to calculate the estate’s value at the date of death and identify which assets pass by beneficiary designation, joint tenancy, or trust — those generally bypass probate entirely. What remains in the decedent’s sole name is what determines whether a formal probate filing in Martinez is necessary.
If you’re planning for the future, now is the time to make sure your own estate plan reflects California’s 2026 rules. At Absolute Trust Counsel, we help East Bay families build and maintain plans designed to keep them out of probate court whenever possible — and to handle the process efficiently when it’s unavoidable.
[AD] Estate planning addresses many important factors about your future and legacy. Where do you get started if you don’t have an estate plan in place? If you do, how have new laws and life transitions changed? Will your plan still protect you? Regardless, you deserve to have control over your wants, needs, goals, and hopes for the future. We can help you understand your options and, legally, how you will best be protected at all touchpoints. Get started today by scheduling a free discovery call so we can discuss your needs. Visit https://absolutetrustcounsel.com/scheduling/ or call us at (925) 943-2740.