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Divorce in Alameda County: local rules, courts, and your 2026 options

Divorce in Alameda County is filed at the Hayward Hall of Justice and follows California's standard 6-month waiting period. As of January 1, 2026, eligible couples can use SB 1427's Joint Petition process (Form FL-700), filing together for a single $435 fee with no formal service required.

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Last updated: March 2026

Quick answer

Divorce in Alameda County is handled by the Family Law Division of Alameda County Superior Court, with all filings submitted at the Hayward Hall of Justice. Beginning in 2026, couples who agree on all terms can file jointly under SB 1427 using Form FL-700, sharing a single $435 filing fee and skipping the formal service process entirely. Couples with minor children must complete mandatory custody mediation through the court's Child Custody Mediation Services office if they can't agree on a parenting plan.

Where to file: Alameda County courthouses

All family law filings in Alameda County, including divorce petitions, must be submitted in person at the Hayward Hall of Justice. This is the county's central hub for Family Law and is where the Family Court Services office, the Self-Help Center, and the Family Law Facilitator are all located.

Alameda County Superior Court — Family Law locations
Courthouse Address Notes
Hayward Hall of Justice 24405 Amador St, Hayward, CA 94544 Primary filing location for all family law cases. Phone: 510-690-2700
René C. Davidson Courthouse 1225 Fallon St, Oakland, CA 94612 Accepts domestic violence restraining order filings only. Phone: 510-891-6000

To file, you'll need to meet California's residency requirements: at least 6 months in California and 3 months in Alameda County before filing. Clerk's office appointments for family law matters can be booked online through the court's website. The court also offers a LiveChat tool (Monday through Thursday, 8:30 a.m. to 3:00 p.m., and Friday until 2:00 p.m.) if you have a quick procedural question and your case number ready.

Not sure which path is right for your Alameda County case? A Hello Divorce account coordinator can walk you through your options in 15 minutes — at no cost.
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The 2026 Joint Petition advantage (SB 1427)

California's most significant divorce law change in decades took effect on January 1, 2026. Under SB 1427, couples who agree on all terms of their divorce can now file a joint petition using Form FL-700, rather than one spouse filing and formally serving the other. This matters in Alameda County for two reasons: it eliminates service-of-process costs entirely, and it reduces the emotional friction of the filing process for couples who are already on the same page.

What SB 1427 changes for Alameda County couples

Under the traditional process (FL-100), one spouse files, pays a $435 filing fee, and must formally serve the other. The respondent then pays a second $435 response fee. Under the joint petition (FL-700), both spouses file together, share a single $435 fee, and skip formal service entirely.

The joint petition is available to couples who have reached full agreement on property, debt, spousal support, and, if applicable, custody and child support. Hello Divorce's platform is designed to guide you through the FL-700 series from start to finish.

The 6-month waiting period still applies either way and cannot be waived. But for couples filing jointly, the process is simpler, less adversarial, and meaningfully less expensive. If you're not sure whether your situation qualifies for a joint petition, schedule a free 15-minute call and we'll help you figure it out.

Alameda County local rules and mandatory mediation

Alameda County follows California's statewide family law rules, but there are several local practices worth knowing before you file.

Mandatory custody mediation

If you and your spouse can't agree on custody or visitation, Alameda County requires you to participate in mediation through its Child Custody Mediation Services office before a judge will hear the disputed issues. These sessions are handled by court-employed counselors at the Hayward Hall of Justice. If parents reach an agreement, it goes to the judge for approval. If they don't, the mediator prepares a written recommendation for the court to consider. Separate sessions are available if domestic violence is a concern. There is no charge for court-provided mediation. Private mediation is also an option and tends to move faster, though mediators in the East Bay typically charge $400 to $600 per hour.

E-filing for existing cases

Once a family law case is open, Alameda County accepts electronic filings through its e-filing portal. Initial petitions and joint petitions (opening filings) must still be submitted in person at the Hayward Hall of Justice clerk's office. If you're e-filing on an existing case, note that the court charges a $5 transaction fee per accepted filing, plus the e-filing service provider's fee.

Financial disclosures are required in every case

California law requires both spouses to exchange Preliminary Declarations of Disclosure (the FL-140 series) in every divorce, regardless of how amicable things are. This is not optional and cannot be waived except in limited circumstances. If you're unfamiliar with what's required, Hello Divorce's guide to financial disclosures walks through every form in plain language.

Explore divorce topics for Alameda County

Every divorce involves multiple moving parts. The guides below cover the topics most relevant to Alameda County residents, from what it actually costs to how to handle property, spousal support, and custody.

East Bay cost note

Alameda County is part of the East Bay's high-cost housing market. Couples with homes purchased during the marriage and significant appreciation should be aware that property division calculations can be complex. If one spouse owned the home before the marriage and community funds were used to pay the mortgage, a Moore-Marsden analysis may be needed to determine each party's share of any appreciation. Hello Divorce's on-demand financial analysts can help you work through this without hiring a full litigation attorney.

If you're not sure where to start, the fastest path to clarity is a free 15-minute call with a Hello Divorce account coordinator who knows California law and can tell you which issues actually need professional attention in your situation.

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Frequently asked questions about divorce in Alameda County

Where do I file for divorce in Alameda County?

All family law filings in Alameda County must be submitted at the Hayward Hall of Justice, located at 24405 Amador Street, Hayward, CA 94544. This includes initial divorce petitions, joint petitions under SB 1427, and all related family law documents. The clerk's office phone number is 510-690-2700. You can also book an appointment online through the court's website before visiting in person.

How much does it cost to file for divorce in Alameda County in 2026?

The filing fee is $435. Under the traditional process, each spouse pays a separate fee: $435 for the petitioner and $435 for the respondent. Under the 2026 Joint Petition process (SB 1427, Form FL-700), both spouses file together and share a single $435 fee. Low-income filers may qualify for a fee waiver by demonstrating financial hardship. Additional costs such as mediation, attorney fees, and expert witnesses depend on the complexity of your case.

Is mediation required for divorce in Alameda County?

Mediation is required in Alameda County whenever parents disagree on custody or visitation. Before a judge will hear contested custody issues, both parents must participate in mediation through the court's Child Custody Mediation Services office, located at the Hayward Hall of Justice. This service is provided at no cost. If parents reach an agreement, the mediator submits it to the court for approval. If they do not agree, the mediator writes a recommendation for the judge. Divorce mediation for financial issues (property, support) is not mandatory but is strongly encouraged and often far less expensive than litigation.

How long does divorce take in Alameda County?

California law requires a minimum 6-month waiting period from the date of filing and service before a divorce can be finalized. This waiting period cannot be waived or shortened. For uncontested divorces where both spouses agree on all issues, the process typically takes 6 to 9 months from filing to final judgment. Contested divorces, where spouses disagree on significant issues, can take 1 to 3 years or longer, depending on the complexity of the case and the court's calendar.

Alameda County court resources

The following official resources are provided by Alameda County Superior Court and the State of California. All links go directly to government or court-operated pages.

This article is for informational purposes only and does not constitute legal advice. Laws and court fees vary by county and are subject to change. For guidance specific to your situation, schedule a free 15-minute call with a Hello Divorce account coordinator.

References & further reading

Sources cited in this article and recommended for further reading.

  1. 1. Superior Court of California, County of Alameda. "Family Law Division" — Official information on filing procedures, courthouse locations, and court services for divorce and family law cases in Alameda County. Alameda County Superior Court, 2026. Accessed March 2026.
  2. 2. Superior Court of California, County of Alameda. "Child Custody, Support, and Visitation" — Explains Alameda County's mandatory mediation requirement for contested custody cases and the court's Child Custody Mediation Services process. Alameda County Superior Court, 2026. Accessed March 2026.
  3. 3. California Legislature. "SB 1427 — Joint Petition for Dissolution of Marriage" — Full text of the 2026 legislation authorizing joint petitions for dissolution using Form FL-700, effective January 1, 2026. California Legislative Information, 2025. Accessed March 2026.
  4. 4. Hello Divorce. "Filing for a divorce in California" — Step-by-step guide to the California divorce process, including the 2026 joint petition option. hellodivorce.com. Accessed March 2026.