Most construction risk ends when the certificate of occupancy issues. A mechanics lien does not. It is the one construction exposure that can outlive the project, outlive the general contractor, and cross the closing table into a new owner's title. The reason is structural: in most states a mechanics lien relates back to the date work first began and attaches to the real property itself, not to the person who ordered the work. An unpaid subcontractor whose invoice you never saw can record a lien months after you close, claim a priority date that predates your deed, and enforce it against your asset. Treat the lien as a payment dispute between other parties and you have misread who is exposed.
Key Takeaways
A mechanics lien attaches to the real property, not to the owner who incurred the debt, so it follows the land through a sale and can be enforced against a buyer who never contracted for the work, per Fullerton & Knowles, P.C.
Lien priority often relates back to the date work first commenced, not the recording date. Under California Civil Code Section 8450, a lien has priority over encumbrances that attach after commencement of the work of improvement.
Subcontractors and suppliers hold independent lien rights even when the general contractor was paid in full, which is why a paid owner can still face a valid lien.
Lien waivers are the primary payment-side control. California recognizes four statutory forms under Civil Code Sections 8132, 8134, 8136, and 8138, and a nonconforming waiver is void under Section 8120.
The risk surfaces in the title commitment as a mechanics lien exception. Whether it is removed, insured over with an endorsement, or held back in escrow determines the buyer's actual exposure.
Why Does a Mechanics Lien Survive a Property Sale?
A mechanics lien survives a sale because it attaches to the real property itself, not to the debtor. Per Fullerton & Knowles, P.C., the lien encumbers the land, so it follows the property through a transfer of ownership. A buyer who purchases a recently improved building can inherit a lien for work the seller ordered and never paid for.
This is the fact operators underprice. A mechanics lien, also called a construction lien, is a statutory security interest that contractors, subcontractors, and material suppliers can record against a property they improved. Because the security is the land rather than a promise from a specific person, changing the owner does not extinguish it. Grzymala Law Offices, P.C. notes that a purchaser who buys property subject to a recorded lien generally takes title encumbered by it and may have to satisfy the claim, then pursue the prior owner for recovery. The buyer's contract had nothing to do with the plumbing subcontractor, but the buyer's asset is what secures the plumber's claim.
The timing makes it worse. Lien statutes give claimants a window after they last furnish labor or materials to record, and that window can run for months. Work completed and unpaid before your closing can become a recorded lien after it, on property you now own. As one framing puts it, a mechanics lien is not a claim against the party who owes the money, it is a claim against whoever owns the improved dirt when enforcement comes. That is why the risk does not close out with the deal.
How Does Relation-Back Priority Put a Lien Ahead of Your Deed?
Relation-back priority means a lien takes its priority date from when construction first began, not from when the lien was recorded. Under California Civil Code Section 8450, a mechanics lien has priority over any mortgage, deed of trust, or other encumbrance that attaches after commencement of the work of improvement. A lien recorded after your closing can still outrank your interest.
Priority is the mechanism that converts a late lien into a senior one. If visible work or delivery of materials to the site began before your deed or your lender's mortgage recorded, the lien's priority relates back to that earlier commencement date. The lien can be recorded months later and still sit ahead of instruments that recorded first in time. This is why construction lenders treat any evidence of started work with alarm: it can prime the mortgage they are about to fund. The American Land Title Association addresses exactly this exposure in its construction lien guidance and through the ALTA 32-06 endorsement (Construction Loan, Loss of Priority), which insures a lender against a mechanics lien gaining priority over the insured mortgage.
Rules vary by state, and the commencement trigger, notice requirements, and exceptions differ. California, for example, provides a narrow carve-out under Civil Code Section 8452 where a qualifying payment bond referring to the mortgage can reorder priority. But the core principle is widespread: the recording date on the lien tells you little about where it stands in line. The commencement of work does. For an operator, the practical takeaway is that a title search clean as of closing does not prove the absence of a relation-back lien still within its recording window.
How Do Lien Waivers Control the Risk During Development?
Lien waivers control the risk by documenting that a contractor or supplier has released its lien rights for work paid to date. In development, the owner or lender collects waivers at each draw so that every paid party has surrendered its claim. A missing or defective waiver leaves an open lien right that can surface long after the pay application cleared.
Waivers are the payment-side discipline that keeps liens from forming in the first place, and their form matters as much as their existence. California codifies four statutory waiver forms, and Liebert Cassidy Whitmore notes that under Civil Code Section 8120 a waiver that does not substantially follow the statutory language is void and unenforceable. The four forms turn on two variables: whether the payment is a progress or final payment, and whether the release is conditional on the payment actually clearing.
Waiver type | Civil Code section | Effective when | Use it when |
|---|---|---|---|
Conditional waiver on progress payment | 8132 | Only after the referenced progress payment clears | Requesting a routine interim draw before funds have cleared |
Unconditional waiver on progress payment | 8134 | Immediately upon signing, regardless of payment | Only after an interim payment has actually been received |
Conditional waiver on final payment | 8136 | Only after the final payment clears | Requesting final payment before funds have cleared |
Unconditional waiver on final payment | 8138 | Immediately upon signing, regardless of payment | Only after final payment has actually been received |
The conditional versus unconditional distinction is where owners and contractors get hurt. A conditional waiver releases lien rights only if payment clears, protecting the contractor. An unconditional waiver releases rights the moment it is signed, whether or not money ever arrives, so a contractor who signs one before the check clears can lose lien rights with nothing to show for it. For the owner assembling a lien-free file, the goal is a complete set of unconditional final waivers from every contractor, subcontractor, and supplier, collected only after each was paid. Gaps in that file are the openings through which a lien later walks.
A Lien Surfaces After Closing: A Worked Example
Assume an investor buys a newly renovated retail building for 6 million dollars and closes in March. The title search is clean, the owner's policy issues, and the deal funds. In June, an HVAC subcontractor that finished work in January, before closing, records a mechanics lien for 180,000 dollars, unpaid by the seller's general contractor.
Trace the consequences. The subcontractor holds an independent lien right even though the buyer never met it and the general contractor may have been paid. Because the work commenced before the March deed, relation-back priority can place the lien ahead of the buyer's interest. The lien now clouds title: the buyer cannot cleanly sell or refinance until it is resolved. The buyer's recourse runs to the owner's title policy if the lien qualifies as a covered defect, and to the seller under any survival provisions and lien indemnities in the purchase agreement. Had the buyer's counsel required a holdback, the escrow agent would have retained, for example, 250,000 dollars past closing against exactly this contingency, and the lien would be satisfied from the holdback rather than from the buyer's balance sheet. The difference between those two outcomes is not the lien. It is whether the buyer negotiated for the protection before funding. This is the same discipline that governs title insurance diligence: the exposure is known and insurable, but only if you address it before you close.
Frequently Asked Questions
Can a mechanics lien be filed after a property is sold? Yes. Lien statutes give claimants a recording window after they last furnish labor or materials, and that window can extend past a closing. Work performed and unpaid before the sale can become a lien recorded after it, encumbering the property in the new owner's hands.
Is a new owner liable for a lien from work they did not order? Often, in effect. Because a mechanics lien attaches to the property rather than to the person who incurred the debt, per Fullerton & Knowles, P.C., a buyer can take title subject to it and may need to satisfy the lien, then seek recovery from the prior owner. This is why lien indemnities and escrow holdbacks matter.
How does a title policy handle mechanics lien risk? The risk appears as a mechanics lien exception in the commitment. A buyer's counsel presses to have it removed, insured over through an endorsement, or covered by an escrow holdback before closing. Title insurance can cover certain post-policy liens tied to pre-policy work, but the specific exceptions govern, so the terms have to be read.
Conclusion
A mechanics lien is the construction risk that does not respect the closing table. It attaches to the land, relates back to when work began, and gives an unpaid subcontractor a claim against whoever owns the property when enforcement arrives. For a buyer, that means the clean title search on closing day is a snapshot, not a guarantee, because a relation-back lien can still be inside its recording window. For a developer, it means the lien waiver file is not paperwork, it is the record that proves the property is clear. The exposure sits alongside the other risks that live before you break ground, and like entitlement risk, it is manageable only if you price it early. Handle the waivers, read the title exceptions, and negotiate the holdback before you fund. Ignore them and the survivor of the whole construction process turns out to be the one liability you assumed was someone else's.