When a lawsuit is needed for an injury in Sonoma County, it can be filed here: for an injury or a death, the superior court of the county where the injury happened, or where a defendant lives, is a proper court (Code of Civil Procedure 395). This guide explains the buildings, the steps and the court's own programs, each from the official source at the end. For the other county offices a case may involve, see personal injury cases in Sonoma County. If the injury happened in Marin County, or the defendant lives there, see what to expect at Marin County Superior Court.
Which courthouse handles an injury case?
| Building | What is there for a civil case | Hours and phone |
|---|---|---|
| Civil and Family Law Courthouse, 3055 Cleveland Avenue, Santa Rosa | Civil Clerk's Office, civil courtrooms, and the Civil Self-Help Center | Building open 8:00 AM to 5:00 PM, Monday to Friday; clerk's phone line 8:00 AM to 3:30 PM. (707) 521-6500 |
| Hall of Justice, 625 Administration Drive, Santa Rosa | Department 11, traffic and limited civil matters, first floor; the Jury Assembly Room, first floor | Building open 8:00 AM to 3:30 PM, Monday to Friday. (707) 521-6500 |
The court moved several departments into the new Hall of Justice over three weekends starting July 20, 2026. Its announcement says civil and family law matters remain at 3055 Cleveland Avenue, while Department 11, which hears traffic and limited civil matters, opened on the first floor of the new building. A case is limited civil when the amount in controversy, not counting interest and costs, is $35,000 or less (Code of Civil Procedure 85); a case asking for more is an unlimited civil case.
To reach the Cleveland Avenue courthouse from Highway 101, take the Guerneville Road and Steele Lane exit toward Coddingtown Mall, turn right on Cleveland Avenue, then left on Russell Avenue; the entrance is at the western end of the building, facing the parking lot. For the Hall of Justice, the court directs drivers from the north to the Steele Lane exit and from the south to the Bicentennial exit, with long-term parking on Ventura Avenue.
What are the steps after an injury lawsuit is filed?
| Step | What happens | Rule |
|---|---|---|
| Filing | The complaint is filed and the court issues a summons | Code of Civil Procedure 412.20 |
| Service | Every named defendant must be served, and proof of service filed, within 60 days after the complaint is filed | California Rules of Court 3.110(b) |
| Response | A defendant has 30 days after service to file a written response; the parties may agree to one 15-day extension without the court | Code of Civil Procedure 412.20(a)(3); Rules of Court 3.110(d) |
| No response | The plaintiff must ask for entry of default within 10 days after the time to respond runs out | Rules of Court 3.110(g) |
| Case management conference | Notice comes at least 45 days ahead; each side files a case management statement at least 15 calendar days before; the judge decides whether to send the case to mediation or another process and whether to set a trial date | Rules of Court 3.722 and 3.725 |
| Discovery | The sides exchange information and evidence; for disputes, the court encourages its discovery facilitator program | Sonoma County Local Rule 4.14(E) |
| Settlement conference | Sonoma's court sets a mandatory settlement conference when a case is set for trial | Court's civil settlement program |
| Trial | A case must be brought to trial within five years after it is commenced against the defendant | Code of Civil Procedure 583.310 |
The Judicial Council sets goals, not deadlines, for how fast courts resolve cases. For unlimited civil cases, the goal is 75 percent resolved within 12 months of filing, 85 percent within 18 months and all within 24 months (Rules of Court 3.714(b)). The same rule tells courts to consider each case on its own merits. Our guide on California personal injury deadlines covers the time limits for filing in the first place.
How do settlement conferences and mediation work in Sonoma County?
The court runs a Mandatory Settlement Conference Program that relies on volunteer attorneys from the local bar; it asks lawyers with at least 10 years of practice to serve as panelists. Settlement conference dates are assigned when a case is set for trial. Each side delivers its original settlement conference statement directly to the panelist no later than five court days before the conference, and the parties must tell the coordinator and the panelists if the case settles before the conference. The court warns that failing to do either may lead to monetary sanctions.
The court also has a Civil Mediation Program in which retired visiting judges mediate cases, chosen at the assigned judge's discretion and by referral. The court describes mediation as informal, confidential and non-binding: the mediator helps the parties weigh their risks and options but does not impose a settlement, and communicates with the court only to file an outcome report or to seek sanctions.
For discovery disputes and demurrers (challenges to the complaint), the court encourages its facilitator programs: under Local Rules 4.14(E) and 4.17(E), the moving party contacts the other side to try to agree on a facilitator from the court's volunteer list. Discovery also includes depositions, where parties and witnesses answer questions under oath before trial; see our guide on how to prepare for a deposition in a premises case.
What about small claims court?
Small claims is a separate court within the Superior Court for claims of $12,500 or less brought by an individual (Code of Civil Procedure 116.221). The court notes that attorneys may not represent either party there, except on appeal, and that some rights, such as pre-trial discovery and the plaintiff's right to appeal, are given up. Sonoma County offers a free small claims advisor, and the Civil Self-Help Center provides small claims services. An injury claim worth more than the limit has to be brought as a civil case.
What if the injured person is a child?
Any settlement of a minor's claim needs a judge's approval, on a verified petition that discloses everything bearing on whether the settlement is reasonable (Probate Code 3500; California Rules of Court 7.950). Our guide on how a wrongful death settlement is divided, and what happens to a child's share explains where the money goes after approval.
What changes the answer in your case?
Whether a public entity is a defendant. A lawsuit against a city, the County or another public entity cannot be filed until a written claim has been presented and acted on or treated as rejected (Government Code 945.4). Our guide on how to file an injury claim against a city, county or the State covers that first step.
The amount in controversy. At $35,000 or less, the case is limited civil and is heard by the department on the first floor of the Hall of Justice; above that, it is an unlimited civil case (Code of Civil Procedure 85).
Where the defendant lives. If the injury happened elsewhere but a defendant lives in Sonoma County, this court can still be a proper court (Code of Civil Procedure 395).
Whether someone died. When the person who was hurt has died, the family's wrongful death claim and the estate's survival claim can be joined in one case (Code of Civil Procedure 377.62). Our guide on whether probate is needed for these claims explains who files. Our guide to the steps in a wrongful death lawsuit in Sonoma County follows that case from filing to trial.
Whether a defendant answers. If no response is filed in time, the plaintiff must request entry of default within 10 days and then obtain a default judgment within 45 days of the default, unless the court extends the time (California Rules of Court 3.110(g) and (h)).
What could this look like? An example
For example, imagine a driver hurt in a Rohnert Park crash who files an unlimited civil case against the other driver, who lives in Santa Rosa.
The complaint is filed and the summons issued; the driver has 60 days to serve it and file proof of service (Rules of Court 3.110(b)). The defendant then has 30 days to respond, plus one 15-day extension if both sides agree (Code of Civil Procedure 412.20; Rules of Court 3.110(d)). Notice of the first case management conference arrives at least 45 days ahead, and each side files a case management statement at least 15 calendar days before it (Rules of Court 3.722 and 3.725). The sides then exchange evidence, and once a trial date is set the court assigns a settlement conference with a volunteer panelist. The court's goal is to resolve unlimited cases within 12 to 24 months, and the case must reach trial within five years (Code of Civil Procedure 583.310). This example is made up to show the order of events; real cases vary.
What mistakes do people make in a Sonoma County case?
- Going to the Hall of Justice for an unlimited civil matter, which stays at 3055 Cleveland Avenue.
- Letting the 60 days for serving the complaint slip by.
- Filing the case management statement late, or not at all.
- Sending the settlement conference statement to the court instead of directly to the panelist, at least five court days ahead.
- Suing a public entity before its claim was presented and acted on.
- Forgetting to tell the coordinator and the panelists that the case settled before the conference.
What should I do this week if a lawsuit is likely?
- Confirm the deadline that applies, starting with California's personal injury deadlines.
- If a public entity is involved, make sure the written claim was presented and note the date of any rejection.
- Gather the crash or incident report, photos, medical records and bills, and insurance letters in one place.
- Write down the names and addresses of everyone involved, because each defendant must be served.
- Talk to a lawyer about whether the case is limited or unlimited, and which court is proper.
Frequently asked questions about Sonoma County Superior Court
Who has to attend the case management conference?
The rule requires each party's lawyer, and any party without a lawyer, to appear in person or remotely and to be ready to discuss the case (California Rules of Court 3.722(c)). The judge may also decide the case without an appearance in some situations.
How long will my case take?
The statewide goals are 75 percent of unlimited civil cases resolved within 12 months, 85 percent within 18 months and all within 24 months (Rules of Court 3.714(b)). Each case is still managed on its own merits. Our guide on how long a personal injury case takes walks through each stage, from the first claim to trial.
Can the judge send my case to mediation?
Yes. At the case management conference, the judge decides whether to send the case to an alternative process (Rules of Court 3.722(a)), and the court's Civil Mediation Program uses retired visiting judges as mediators.
What is a demurrer?
It is a challenge to the complaint itself. The court encourages the parties to use a volunteer facilitator from its list when one is filed (Local Rule 4.17(E)).
Which city pages cover the local offices before a case reaches court?
Each of our city pages lists the police, records and claims offices for that city:
- Santa Rosa, home to both courthouse buildings.
- Petaluma.
- Rohnert Park.
- Windsor.
- Healdsburg.
- The City of Sonoma.
Where can I research a case or get help?
The court's civil division says public access terminals for researching cases are available at the Civil and Family Law Courthouse, and the court's Civil Self-Help Center is in the same building.
Our office is in nearby Cotati. Our team is led by Eric Young, who has represented seriously injured people since 1997 and has a background in civil litigation, trials and appeals.
If you were injured in Sonoma County and are weighing a lawsuit, contact Young Law Group today at (707) 343-0556 or through our contact page to schedule your free consultation and learn how we can help.
Sources
- Government Code section 945.4 (no lawsuit until the claim is acted on)
- Code of Civil Procedure section 377.62 (joining wrongful death and survival claims)
- Code of Civil Procedure section 395 (where an injury case may be filed)
- Superior Court of California, County of Sonoma: Civil and Family Law Courthouse
- Superior Court of California, County of Sonoma: Hall of Justice
- Superior Court of California, County of Sonoma: move into the new courthouse (press release, amended July 15, 2026)
- Code of Civil Procedure section 85 (limited civil cases)
- Code of Civil Procedure section 412.20 (the summons and the 30 days to respond)
- California Rules of Court, rule 3.110 (time for service and response)
- California Rules of Court, rule 3.722 (case management conference)
- California Rules of Court, rule 3.725 (case management statement)
- California Rules of Court, rule 3.714 (case disposition time goals)
- Code of Civil Procedure section 583.310 (five years to bring a case to trial)
- Superior Court of California, County of Sonoma: Civil division (settlement conferences, mediation, facilitators)
- Superior Court of California, County of Sonoma: Small claims
- Code of Civil Procedure section 116.221 (small claims limit for individuals)
- Probate Code section 3500 (court approval of a minor's settlement)
- California Rules of Court, rule 7.950 (petition to approve a minor's settlement)
