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LA County DUI · Antelope Valley Courthouse

DUI Defense at the Antelope Valley Courthouse

The high desert runs on its own court calendar. One building, the Michael D. Antonovich Antelope Valley Courthouse on 4th Street West in Lancaster, is where the Los Angeles County Superior Court's North District hears criminal and traffic matters for the entire Antelope Valley — including the DUI cases this firm's existing pages already confirm for Lancaster and Palmdale, plus the unincorporated community of Lake Los Angeles. Ron Chini defends DUI cases filed here from his Irvine office, and the court calendar isn't the clock that matters first — California gives you only 10 days from arrest to request a DMV hearing before your license is automatically suspended.

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The Michael D. Antonovich Antelope Valley Courthouse, 42011 4th Street West in Lancaster, is the Los Angeles County Superior Court's single North District branch for the entire Antelope Valley — the high desert's criminal and traffic cases, DUIs among them, run through this one building rather than a patchwork of smaller courts. This site's existing Lancaster and Palmdale pages already name this courthouse as their venue, and the unincorporated community of Lake Los Angeles is commonly understood to route here as well, though — as explained below — the court's own published record doesn't spell out a city-by-city jurisdiction list to confirm that directly. Ron Chini defends Antelope Valley DUI cases filed at this courthouse from his Irvine office, and whatever the court docket looks like, the DMV is running its own separate 10-day clock starting the moment the arrest happened.

Antelope Valley Courthouse — court & DMV details

Courthouse
Michael D. Antonovich Antelope Valley Courthouse, LA County Superior Court (North District)
Address
42011 4th Street West, Lancaster, CA 93534
Serves
Lancaster & Palmdale (confirmed via this firm's own pages); Lake Los Angeles (commonly understood — see caveat below)
Prosecutor
LA County District Attorney — Antelope Valley Office, Suite 3530, (661) 974-7700
Public Defender
LA County Public Defender — Lancaster Office, (661) 974-7400 (Alternate Public Defender, Suite 1700, (661) 974-7484)
DMV hearing
Request within 10 days — California holds APS hearings by phone/video; call DMV Driver Safety at (833) 543-7703
Local agencies
LASD Lancaster Station (Lancaster & Lake Los Angeles); LASD Palmdale Station (Palmdale); CHP Antelope Valley Area for SR-14/SR-138

One North District building for the whole high desert

Most of Los Angeles County is carved into small courthouse catchments — one building for a handful of neighboring cities, another a few miles away for the next cluster. The Antelope Valley doesn't work that way. The Superior Court runs exactly one North District branch for the entire region, which is why a DUI from Lancaster and a DUI from Palmdale, two separate cities roughly ten miles apart, both end up filed at the same address on 4th Street West. The courthouse keeps standard weekday hours, Monday through Friday from 8:00am to 4:30pm, and its own official online listing confirms only a broad jurisdictional statement — that it hears 'cases that take place in the Antelope Valley' — without spelling out which specific cities or communities route where. That generality is exactly why this page leans on this firm's own prior, independently researched Lancaster and Palmdale pages for the confirmed part of its served-area list, rather than claiming a fresh primary-source confirmation the court's own record doesn't actually provide.

Where Lake Los Angeles fits in

Lake Los Angeles is an unincorporated desert community east of Palmdale with no city government of its own, so there's no local court or city attorney in the picture at all. Its patrol agency is confirmed directly: the Los Angeles County Sheriff's Lancaster Station names Lake Los Angeles, alongside Antelope Acres and Quartz Hill, as one of the areas it serves. Which courthouse hears a Lake Los Angeles DUI is a shorter logical step from there rather than an independently confirmed fact on its own — this courthouse is the only Superior Court venue for the entire Antelope Valley, and the same pattern already holds for neighboring Lancaster and Palmdale. We present it as a reasonable, commonly understood assignment rather than a confirmed one; if you were arrested in Lake Los Angeles, your citation or arraignment notice is the faster, more reliable answer than any website.

Two Sheriff's stations, one CHP office, and the DA next door

Patrol responsibility splits roughly along city lines. The Lancaster Station, 501 W. Lancaster Blvd., covers the City of Lancaster itself along with the unincorporated communities of Antelope Acres, Quartz Hill, and Lake Los Angeles. The Palmdale Station, 750 East Avenue Q, covers Palmdale and the rural stretches east and south of it, and was purpose-built in 2006 with its own on-site jail rather than relying on a central downtown facility for every booking. Neither city runs its own police department — both contract entirely with the Sheriff. On the freeways, the California Highway Patrol's Antelope Valley Area office, 2041 West Avenue I in Lancaster, covers roughly 30 miles of State Route 14 running north from Acton to the Kern County line, plus State Route 138, State Route 18, and the mountain routes of Angeles Forest and Angeles Crest Highways — so a stop made directly on the freeway often carries different paperwork than one made on a city street a block away. Whichever agency wrote the report, the prosecuting office is the same: the Los Angeles County District Attorney staffs its own Antelope Valley Office right inside this courthouse, at Suite 3530, and the County's Public Defender and Alternate Public Defender offices sit in the same building for anyone who qualifies for appointed counsel.

The 10-day DMV deadline doesn't wait for a North District court date

Everything above describes how the criminal case moves through this one courthouse — arraignment, pretrial dates, eventually trial if it gets that far. None of it touches the separate administrative clock the DMV starts running the moment handcuffs go on. You get 10 days from the date of arrest to request a Driver Safety hearing and contest the automatic suspension of your license; miss that window and the suspension takes effect on schedule no matter what happens later at the Antelope Valley Courthouse. California now runs these hearings by phone or video, which speeds the process up but changes nothing about the deadline itself. Call (833) 543-7703 to request one, or see how the full process works on our DMV hearing page. The nearest full-service DMV field office for license and registration matters (not the suspension hearing itself) is in Lancaster at 721 West Avenue L6.

How Ron builds a defense out of the Antelope Valley Courthouse

Because this courthouse draws from two different Sheriff's stations plus a CHP freeway command, Ron's first move on a new Antelope Valley case is pinning down exactly which agency made the stop and pulling that agency's own report, any dash or body-camera footage, and the full chain of custody on whatever breath or blood evidence was collected — a Lancaster Station file, a Palmdale Station file, and a CHP file don't always document things the same way. From there he reviews the legal basis for the stop itself, how field sobriety testing was actually administered, and whether the DA's Antelope Valley Office has a case worth fighting, negotiating, or moving to suppress. He works these cases personally, in English and Farsi, backed by 349 verified client reviews from clients across Southern California — and he does not claim to be a certified specialist or promise a result before he's actually reviewed the evidence. He appears at the Antonovich courthouse as each case requires, running the DMV hearing on its own separate track so it never quietly lapses while the criminal case works through the North District calendar.

Where will my Antelope Valley DUI case be heard?
At the Michael D. Antonovich Antelope Valley Courthouse, 42011 4th Street West, Lancaster, CA 93534 — the Los Angeles County Superior Court's North District branch, and the only Superior Court venue serving the entire Antelope Valley. See our pages for Lancaster, Palmdale, and Lake Los Angeles.
Which cities and communities does this courthouse serve?
Lancaster and Palmdale, confirmed through this firm's own existing pages for each city. Lake Los Angeles, an unincorporated community patrolled by the Sheriff's Lancaster Station, is commonly understood to route here too, but the court's own published record doesn't list served cities by name, so that one is presented as a reasonable assumption rather than an independently confirmed fact — check your own citation if you were arrested there.
Who prosecutes a DUI filed at the Antelope Valley Courthouse?
The Los Angeles County District Attorney's Office, through its Antelope Valley Office, which keeps its own suite (3530) inside the courthouse building itself. None of the communities this courthouse serves runs its own city prosecutor, so the county DA files both misdemeanor and felony DUI charges here.
Which agency likely investigated my arrest?
If you were stopped in Lancaster or Lake Los Angeles, it was almost certainly the Sheriff's Lancaster Station. If you were stopped in Palmdale, it was the Sheriff's Palmdale Station, which has run its own on-site jail since 2006. A stop made directly on State Route 14, State Route 138, or one of the mountain highways may instead have come from the CHP's Antelope Valley Area office.
How do I protect my license after an Antelope Valley DUI arrest?
Request a DMV hearing within 10 days of the arrest, or the suspension takes effect automatically regardless of how the criminal case turns out — see our DMV hearing page for how the process works.

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Ron Chini, Esq.
Ron Chini, Esq.
DUI Defense Attorney · CA State Bar No. 263308

Ron defends DUI cases across Southern California from his Irvine office, in English and Farsi — and works directly with you, not a call center.

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