Preliminary notice in Los Angeles County, California

If you furnish labor or materials on a construction project in Los Angeles County, a preliminary notice is what protects your right to get paid. The rules are set by California state law — the same across every county — but where you ultimately record a mechanics lien is local to Los Angeles County. Here’s what subcontractors and suppliers in the county need to know.

What is a preliminary notice?

A preliminary noticeis a written notice that preserves your right to record a mechanics lien if you aren’t paid. California requires almost every subcontractor, supplier, and equipment lessor to serve one (Cal. Civ. Code §§ 8200–8216). Without it, you generally can’t enforce a lien — even for a valid debt.

The 20-day deadline applies in Los Angeles County

You must serve the notice within 20 days of first furnishing labor or materials to the project (Cal. Civ. Code § 8204). Serve it late and it only protects work from the 20 days before service. Use the preliminary notice deadline calculator to find your exact date.

Who you serve

Serve the owner or reputed owner, the direct (general) contractor, and the construction lender if there is one (Cal. Civ. Code § 8200). The accepted methods are certified or registered mail with return receipt, or personal delivery — see how to serve a preliminary notice.

Construction in Los Angeles County

Los Angeles County is the largest construction market in California. Work ranges from downtown high-rises and entertainment build-outs to transit projects and an enormous volume of residential and tenant-improvement subcontracting spread across nearly 90 cities. With so many parties on a typical LA job, identifying the right owner, general contractor, and lender to serve is often the hardest part of getting a preliminary notice right.

Preliminary notice and mechanics lien rules apply to private projects throughout the county, including Los Angeles, Long Beach, Glendale, Santa Clarita, Pasadena, Torrance, Pomona, and Burbank. To confirm an owner or parcel before you serve, the Los Angeles County Assessor is a useful starting point.

Recording a mechanics lien in Los Angeles County

If you go on to record a mechanics lien, it must be recorded at the Los Angeles County Registrar-Recorder/County Clerk — the office that records liens and deeds for property in the county. A lien always gets recorded in the county where the property sits, so a Los Angeles County project means recording with the Los Angeles County recorder.

Your lien deadline is 90 days from completion, or as little as 30 days for subcontractors (60 for the direct contractor) if a Notice of Completion is recorded (Cal. Civ. Code §§ 8412, 8414). See the mechanics lien deadline guide for the full timeline.

This page is general information, not legal advice, and does not create an attorney–client relationship. California lien and notice deadlines are strict and fact-specific — “completion” alone can be triggered by actual completion, the owner’s occupancy or use, or a 60-day cessation of labor. Notice Harbor is not a law firm. Confirm any deadline that matters to your claim with a licensed California construction attorney.