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The Rancho Cucamonga courthouse at 8303 Haven Avenue is a dedicated criminal courthouse, which means every West Valley DUI, from a first offense in Upland to a felony DUI near Ontario International Airport, moves through the same building and the same office. The court is open Monday through Friday, 8 a.m. to 4 p.m. If you were arrested anywhere in the West Valley, whether on the 210 in Rancho Cucamonga or Foothill Boulevard in Fontana, this is almost certainly where your arraignment and any later hearings will happen. Getting ready for that first appearance, understanding how the clerk's office handles filings, and knowing your DMV deadline matters as much as what happens once you're inside the courtroom.
Rancho Cucamonga Courthouse — court & DMV details
Why your case is here
The Rancho Cucamonga courthouse at 8303 Haven Avenue is the designated criminal court for the West Valley, the western, freeway-laced end of San Bernardino County. DUIs from Rancho Cucamonga, Ontario, Upland, Montclair, Chino, Chino Hills, Fontana, Rialto, and Bloomington are heard here. Notably, although Fontana has its own courthouse, its criminal cases route to Rancho Cucamonga. DUI enforcement here is heavy on the I-15, I-210, and I-10 and around Ontario International Airport.
Getting to the Haven Avenue Courthouse
The courthouse sits on Haven Avenue just north of the 10 Freeway, and public parking is available on the south, east, and west sides of the building, so plan on a short walk regardless of which lot has room that morning. Omnitrans Route 81 runs the length of Haven Avenue with stops at Arrow Route, Foothill Boulevard, and several other cross streets near the courthouse, which is a realistic option if you don't want to hunt for parking during a busy arraignment calendar. Like other San Bernardino County courthouses, expect a security screening at the entrance, including a bag check and metal detector, so leave extra time and skip bringing anything that could get flagged. Because this building handles criminal cases only, everyone walking in that morning is likely there for the same reason you are, which can make the lobby crowded right at opening.
What Arraignment Day Looks Like on Haven Avenue
The Rancho Cucamonga courthouse keeps standard hours, Monday through Friday from 8 a.m. to 4 p.m., and the criminal division runs its own phone line, separate from the civil courts' numbers. The court offers online appointment scheduling for criminal filings, and a drop box at the entrance accepts documents and payments, check or money order only, up until 4 p.m. for same day processing. Beyond scheduling logistics, publicly posted information doesn't spell out whether this courthouse offers remote video appearances for arraignment, so if that matters to you, ask the clerk's office or have Ron confirm it before your date. Arrive early: lines for security and check in tend to be longest right when the doors open for the morning calendar.
DUI Programs, Probation, and the DMV in the West Valley
If you're convicted of a West Valley DUI, California requires you to complete a state licensed DUI program, supervised in this region by providers such as Alcohol Education & Recovery Services in Chino, one of the state licensed programs listed by the California Association of DUI Treatment Programs. Probation, when ordered, is supervised by San Bernardino County Probation. Separately, the DMV runs its own case against your driving privilege, and for Inland Empire arrests those Administrative Per Se hearings are now handled regionally, by phone, rather than at a walk in office, so call DMV promptly once you've requested your hearing. Keeping the DMV case, the program requirement, and the criminal case moving together, instead of letting one slip, is a big part of what Ron coordinates for West Valley clients.
The 10-day DMV deadline
A West Valley DUI means two cases at once: the criminal case at Rancho Cucamonga and the DMV's separate case against your driving privilege, with a 10-day deadline to request a hearing. How the DMV hearing works →
How Ron defends a DUI at the Rancho Cucamonga Courthouse
Every West Valley DUI filed at Rancho Cucamonga is prosecuted by the San Bernardino County District Attorney's office, the same office that charges cases across the county. After arraignment, a DUI case here typically moves through pretrial conferences where Ron reviews the arrest report, the calibration and maintenance records for any breath instrument, and the lawfulness of the initial stop, before deciding whether to negotiate, file motions, or set the matter for trial. The courthouse's criminal division takes appointments and filings through its own online scheduling system and a drop box at the entrance for documents and payments, which can simplify logistics for routine check ins. Ron's office in Irvine is a straightforward drive up the 15 and 10 freeways to Haven Avenue, and he handles the substantive case work directly rather than passing you to other staff. He also keeps the DMV's separate license case moving on its own track so the two deadlines don't collide.
Where will my Ontario or Rancho Cucamonga DUI be heard?
I was arrested in Fontana — does my case go to the Fontana courthouse?
Does this courthouse cover Chino and Chino Hills?
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Ron defends DUI cases across Southern California from his Irvine office — and works directly with you, not a call center.
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