California Notice of Intent to Lien: Contents, Sending, Recording

A California notice of intent to lien is an optional warning letter you send to a property owner (and often the general contractor and lender) stating that you will record a mechanics lien if the unpaid balance is not resolved. California law does not require this letter, prescribe a form for it, or set a deadline for sending it. What the law does require, before any mechanics lien can be recorded, is a separate document called the 20-day preliminary notice. Confusing the two is the single most common way claimants lose their lien rights.

What the Letter Is and What It Isn’t

The notice of intent to lien is an informal demand letter. It tells the owner, contractor, or both that you have not been paid and that you plan to record a mechanics lien if the debt is not resolved by a stated date. Because no statute governs it, there is no official form, no mandatory content, and no filing deadline. You will not find it in the California Civil Code’s mechanics lien provisions.

Despite being unofficial, the letter tends to work. Owners who ignored invoices for weeks often respond quickly once they learn a lien is about to attach to their property. Lenders and title companies react too, because a recorded lien can block refinancing and sales. Sending the letter gives the other side a clear window to pay before the situation escalates, and it builds a paper trail showing you tried to resolve the dispute before recording.

The trouble starts when claimants treat this letter as if it satisfied a legal requirement. It does not replace the 20-day preliminary notice, and it does not create or extend any statutory deadline. Skip the preliminary notice and rely on a notice of intent alone, and your mechanics lien will be unenforceable.

The Mandatory Preliminary Notice You Can’t Skip

Before you can record a mechanics lien, give a stop payment notice, or assert a claim against a payment bond, California requires most claimants to serve a preliminary notice on the property owner, the direct contractor, and any construction lender.¹ Compliance is an explicit prerequisite to a valid lien claim. There are two exceptions: laborers are exempt, and a claimant who contracted directly with the owner only needs to notify the construction lender, if any.

Serve the preliminary notice no later than 20 days after you first provide labor or materials on the project. Serve it late and your lien rights shrink to work performed within the 20 days before service, plus anything after.² Skip it entirely and you lose lien rights, stop payment notice rights, and bond claim rights.

The preliminary notice must include a general description of the work, an estimate of the total price, and a boldface statement warning the owner that a lien could attach if you are not paid.² Los Angeles County publishes a fillable PDF version through its Registrar-Recorder’s office, and most county recorder websites offer something similar.³

So the sequence is: preliminary notice first, within 20 days of starting work. Notice of intent to lien later, when a payment dispute develops. Recorded mechanics lien after that, if the intent letter doesn’t produce payment.

What to Put in a Notice of Intent to Lien

No statute dictates the contents, so you have flexibility. A vague or incomplete letter will not carry the same weight as one that reads like a preview of an actual lien claim. A well-drafted notice should include:

Your name, address, and contractor license number if applicable.
Who hired you, whether the owner, the general contractor, or a subcontractor higher up the chain.
The project site described with enough detail for identification, including the street address and, if possible, the assessor’s parcel number.
A brief description of the labor, materials, or equipment you furnished.
The unpaid balance, stated specifically. A vague “substantial amount” signals that you have not done the arithmetic.
A clear deadline for payment or a response, typically 10 to 15 days from the date of the letter.
A plain statement that you will record a mechanics lien if payment is not received by that date.

Because the letter is not statutory, no official PDF is issued by the state. Construction-industry and legal-form sites publish templates, but a letter on your business letterhead covering the points above is enough.

How to Send It So It Holds Up Later

California’s mechanics lien statutes recognize three service methods for notices under the construction lien framework: personal delivery; mail sent by registered mail, certified mail, express mail, or overnight delivery by an express carrier; or leaving the notice at the recipient’s address and mailing a copy the same way substitute service works in a civil action.⁴ When mailing, the statute requires registered, certified, express, or overnight delivery.⁵

The notice of intent is informal, so technically you are not bound to these methods. Use them anyway. If the dispute reaches court, you will want proof that the owner and contractor received your warning. Certified mail with tracking, delivery confirmations kept in the file, and copies of the letter itself all matter. Regular first-class mail leaves you with nothing to show.

Send the notice to every party who could resolve the payment dispute: the property owner, the general contractor, and any construction lender you know about. The step is optional, but treating it with the same rigor as a statutory notice sets up a stronger claim if you end up recording a lien.

If the Letter Doesn’t Work: Recording the Lien

When the notice of intent produces no payment, the next step is recording an actual mechanics lien in the county where the property sits. California imposes tight deadlines and specific content requirements.

Recording Deadlines

Deadlines depend on your role and whether the owner has recorded a notice of completion or cessation. A direct contractor (contracted directly with the owner) must record after completing the contract and before the earlier of 90 days after project completion or 60 days after the owner records a notice of completion or cessation.⁶

Every other claimant, including subcontractors and material suppliers, must record after they stop providing work and before the earlier of 90 days after project completion or 30 days after the owner records a notice of completion or cessation.⁷ That 30-day window is aggressive. If you are not monitoring the county records for a notice of completion, the clock can start without you knowing.

Contents of the Recorded Lien

The lien must be written, signed, and verified, and must contain the amount of your demand after credits and offsets, the owner’s name if known, a general description of the work, the name of the person who hired you, a property description sufficient for identification, your address, and a proof-of-service affidavit showing that a copy of the lien was served on the owner.⁸

The lien must also include a boldface notice to the owner explaining that a foreclosure action may follow and that the lien could affect the owner’s ability to borrow against, refinance, or sell the property.⁸ That statutory language must appear exactly as prescribed. Notarization of the lien is not required in California.

Recording Fees

County recorder fees vary. In Los Angeles County, the combined fees for recording a mechanics lien come to roughly $106 for a standard-length document, with additional charges of $3 per page beyond the first.⁹ Other counties charge similar amounts. Budget $75 to $125 for the recording itself.

Enforcing the Lien After Recording

Recording is not the finish line. You must file a foreclosure lawsuit within 90 days after the recording date, or the lien expires automatically and becomes unenforceable.¹⁰ This is the deadline that catches the most claimants off guard. People assume that once the lien attaches, pressure alone will produce payment. Sometimes it does. If negotiations drag past 90 days without a lawsuit filed, the lien evaporates.

One exception: if you and the owner agree in writing to extend credit, and that extension is recorded within 90 days after the lien recording (or later if no good-faith purchaser has acquired rights in the property), you get 90 days from the end of the credit period to file suit, though never later than one year after project completion.¹⁰

Common Mistakes That Destroy Lien Rights

California’s mechanics lien process is unforgiving. Miss a step or a deadline and no amount of documentation will save the claim. These are the errors that come up again and again:

Skipping the preliminary notice. Without a valid preliminary notice served on the right parties, your lien is unenforceable. A notice of intent to lien does not substitute for it.¹
Serving the preliminary notice late. Service after the initial 20-day window limits your lien to work from the 20 days before service onward. Months of earlier work may be unrecoverable.
Missing the recording deadline. For subcontractors, the window shrinks to 30 days if the owner records a notice of completion. Watch the county records.⁷
Leaving out the proof-of-service affidavit. The recorded lien must include a signed affidavit showing a copy was served on the owner. Without it, the lien is defective.⁸
Not filing suit within 90 days. The lien expires automatically if no foreclosure action is commenced within 90 days after recording.¹⁰
Claiming work you did not perform. Willfully including labor or materials you did not provide forfeits the entire lien, not just the inflated portion.

Small errors, such as a slightly incorrect property description or a miscalculated demand amount, do not automatically invalidate the lien unless the mistake was made with intent to defraud or a good-faith purchaser was misled by the defect.

1
California Legislative Information. California Code CIV 8200
2
California Legislative Information. California Code Civil Code 8202 – Preliminary Notice
3
Los Angeles County Registrar-Recorder/County Clerk. California Preliminary Notice Form
4
California Legislative Information. California Code Civil Code 8106
5
California Legislative Information. California Code Civil Code 8110 – Notice by Mail
6
California Legislative Information. California Code CIV 8412
7
California Legislative Information. California Code Civil Code 8414
8
California Legislative Information. California Code Civil Code 8416
9
Los Angeles County Registrar-Recorder/County Clerk. Recording Fee
10
California Legislative Information. California Code Civil Code 8460