California Mechanics Lien

What Is a Mechanics Lien?

A mechanics lien (sometimes called a construction lien or materialman’s lien) is a legal claim recorded against real property to secure payment for labor, materials, equipment, or services furnished for a work of improvement. In California, the right to file a mechanics lien is established under Civil Code Section 8400.

The mechanics lien is one of the most powerful payment remedies available to construction participants. It creates a security interest in the property itself — the property owner cannot sell or refinance with a clear title until the lien is resolved. If necessary, the lien claimant can foreclose on the property to satisfy the debt, just as a mortgage lender can foreclose for an unpaid loan.

California’s mechanics lien law is codified in Civil Code Sections 8000–8848, reorganized and modernized effective July 1, 2012. These statutes govern lien rights, preliminary notice requirements, recording procedures, and enforcement timelines.

Who Can File a Mechanics Lien in California?

Under Civil Code Section 8400, the following parties have the right to record a mechanics lien if they have furnished labor, services, equipment, or materials for a work of improvement:

• General contractors — direct contractors with a contract with the property owner
• Subcontractors — of any tier who perform work on the project
• Material suppliers — who furnish materials incorporated into the work of improvement
• Equipment lessors — who rent equipment used on the project
• Laborers — who perform work on the project (Civil Code §8404)
• Design professionals — architects, engineers, and land surveyors who provide services for the project

To qualify, the claimant must have furnished labor or materials at the request of, or with the consent of, the property owner or the owner’s agent. The work must be part of a “work of improvement” as defined in Civil Code Section 8050.

Preliminary Notice — Required Before Filing

In California, most claimants must serve a preliminary notice before they can file a mechanics lien. If you are a subcontractor, material supplier, equipment lessor, or any party other than a direct contractor or laborer, you are required to serve a 20-day preliminary notice under Civil Code Section 8200 to preserve your full lien rights.

Who must serve a preliminary notice?

• Subcontractors — always required (§8200)
• Material suppliers — always required
• Equipment lessors — always required
• General contractors — NOT required to serve on the owner, but must serve on the construction lender if one exists (§8200(b))
• Laborers — exempt from the preliminary notice requirement

What happens without a preliminary notice?

Without a timely preliminary notice, your lien rights are severely limited. You may only claim payment for work furnished within 20 days before the notice was actually served, plus work performed after service. This can mean losing thousands of dollars in lien coverage.

Do not wait until you have a payment dispute to think about your preliminary notice. The best practice is to serve the notice within the first 20 days of every project, regardless of whether you expect payment problems.

Filing Deadlines

California imposes strict deadlines for recording and enforcing a mechanics lien. Missing any deadline results in the permanent loss of lien rights.

Event	Deadline
Preliminary notice	20 days from first furnishing labor or materials (§8204)
Late preliminary notice	Still valid, but only covers 20 days back from service date + forward
Lien recording (with Notice of Completion)	60 days for subs/suppliers, 90 days for direct contractors (§8412, §8414)
Lien recording (no Notice of Completion)	90 days after completion of the work of improvement
Lien enforcement lawsuit	90 days after recording the lien (§8460) — miss this and the lien expires
Owner demand to enforce	Shortens enforcement deadline to 30 days (§8462)

Notice of Completion — watch for this

When a property owner records a Notice of Completion with the county recorder, it starts a shorter clock for mechanics liens. “Completion” is defined in Civil Code §8180 and can mean actual completion, cessation of labor for 60 continuous days, or recordation of a notice of completion.

Step-by-Step Filing Process

Follow these steps to properly record and enforce a mechanics lien in California:

1. Serve a Preliminary Notice — If you are a subcontractor, material supplier, or equipment lessor, serve a 20-day preliminary notice on the property owner, general contractor, and construction lender within 20 days of first furnishing labor or materials (Civil Code §8200). File a preliminary notice now.
2. Complete Work or Delivery — Finish furnishing labor, materials, or equipment on the project. Document everything: keep records of contracts, invoices, change orders, delivery receipts, and daily logs.
3. Prepare and Record the Mechanics Lien — Draft the mechanics lien claim using the form prescribed in Civil Code §8416. Include your name, the property owner’s name, a description of the work or materials, the amount claimed, and a legal description of the property. Record with the county recorder where the property is located.
4. Serve Copy on Property Owner — Within 10 days after recording, serve a copy of the recorded lien on the property owner by personal delivery, first-class mail, or certified mail (Civil Code §8416(c)).
5. Enforce Within 90 Days — File a foreclosure lawsuit in the superior court of the county where the property is located within 90 days after recording the lien (Civil Code §8460). Record a lis pendens to provide notice of the pending action.

What Must Be Included in the Lien (§8416)

The mechanics lien must contain the following information:

• Name and address of the claimant
• Name and address of the property owner (or reputed owner)
• Description of the labor, services, equipment, or materials furnished
• The amount of the claim, after deducting all just credits and offsets
• A description of the property sufficient for identification (address or legal description)
• Name of the person who hired the claimant
• The claimant’s contractor license number (if applicable)

The lien must be verified by the claimant or the claimant’s agent and recorded with the county recorder’s office in the county where the property is located.

Frequently Asked Questions

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