A Colorado mechanics lien is a statutory claim against real property that lets contractors, subcontractors, suppliers, design professionals, and laborers secure payment for work on a private construction project, and if payment still doesn’t come, force a sale of the property to collect. The rules live in Article 38-22 of the Colorado Revised Statutes, and they are strict: a missed notice, a late filing, or a forgotten lis pendens will wipe out the claim no matter how clearly the money is owed. The sections below walk through who qualifies, what you have to serve and record, when the deadlines run, how the lien ranks against other creditors, and what owners can do when a lien lands on their title.
Who Can Claim a Lien
Colorado draws the circle widely. Anyone who furnishes labor, materials, machinery, tools, or equipment for construction on private property can claim a lien, including general contractors, subcontractors, material suppliers, equipment rental companies, and laborers. Architects, engineers, draftsmen, and surveyors who provide designs, plans, specifications, cost estimates, or construction oversight qualify as well.1Justia. Colorado Code 38-22-101 – Liens in Favor of Whom – When Filed – Definition of Person
You do not need a direct contract with the owner. The statute treats every contractor, subcontractor, architect, engineer, or agent in charge of the work as the owner’s agent for lien purposes, which is what allows parties far down the contracting chain to lien an owner who never hired them.1Justia. Colorado Code 38-22-101 – Liens in Favor of Whom – When Filed – Definition of Person
The Ten-Day Notice of Intent
Before you record anything, you have to serve a written notice of intent to file on both the property owner (or reputed owner) and the prime contractor. The notice has to go out at least ten days before you record the lien statement with the county clerk and recorder. Service is by personal delivery or by certified or registered mail with a return receipt requested.2Justia. Colorado Code 38-22-109 – Lien Statement
When you record the lien, you must also file an affidavit proving the notice was sent at least ten days earlier. Skipping the notice, serving only one of the two required recipients, or filing the affidavit late is one of the most common reasons Colorado liens get thrown out. There is no cure after the fact.2Justia. Colorado Code 38-22-109 – Lien Statement
What the Lien Statement Must Say
Record the lien in the county clerk and recorder’s office in the county where the property sits. The statement has to include:
- The name of the property owner or reputed owner, or a statement that the name is unknown.
- The name of the person claiming the lien, the person who furnished the labor or materials, and the prime contractor if the claimant is a subcontractor.
- A description sufficient to identify the property.
- A statement of the amount due or owed.
The statement has to be signed and sworn to by the claimant or someone acting on the claimant’s behalf.2Justia. Colorado Code 38-22-109 – Lien Statement
The amount should reflect what you are actually owed for labor, materials, or services on the project. Colorado permits interest in the lien claim, but attorney fees and other litigation costs don’t belong at the filing stage; if you later prevail in foreclosure, the court may award those as part of the judgment.
The Four-Month Filing Deadline
You have four months from the date you last performed work or furnished materials on the project to record the lien statement. Miss that window and the right to file is gone.2Justia. Colorado Code 38-22-109 – Lien Statement
Lien Priority and Relation Back
A Colorado mechanics lien relates back to the date work first began under the contract between the owner and the first contractor. If the contract was oral, it relates back to when physical work started on the property. A lien recorded months into the job can therefore outrank a mortgage or other encumbrance recorded during the same period, as long as that encumbrance came after work began.3Justia. Colorado Code 38-22-106 – Priority of Lien – Attachments
Relation back also reaches unrecorded encumbrances the claimant didn’t know about. If someone held an interest in the property but hadn’t recorded it and the claimant had no actual notice, the mechanics lien takes priority.3Justia. Colorado Code 38-22-106 – Priority of Lien – Attachments
The main exception is any valid encumbrance recorded before the contract was signed or before work started. In practice, a construction lender’s deed of trust recorded before any shovel hits dirt will almost always outrank a later mechanics lien, which is why lenders are so insistent on recording first.3Justia. Colorado Code 38-22-106 – Priority of Lien – Attachments
Colorado also keeps third-party creditors from undercutting subcontractors and suppliers. An attachment, garnishment, or execution levy on money owed by the owner to the contractor is not valid against a subcontractor’s or supplier’s lien.3Justia. Colorado Code 38-22-106 – Priority of Lien – Attachments
Enforcing the Lien: The Six-Month Foreclosure Deadline
Recording the lien is only the first step. To collect, you have to foreclose, and the enforcement deadline trips up more claimants than any other part of the statute.
You must file a foreclosure lawsuit and record a notice of lis pendens within six months after the last work was performed or materials were furnished, or after the project was completed. If both aren’t done inside that window, the lien becomes void. Read the clock carefully: the six months run from the last date of work or completion, not from the date you recorded the lien statement.4Justia. Colorado Code 38-22-110 – Action Commenced Within Six Months
Because you already have four months to record the lien, waiting until the last day leaves as little as two months to prepare and file the foreclosure suit. Planning backward from the six-month enforcement deadline is the smarter approach.
The lis pendens matters as much as the lawsuit. It is a recorded notice telling anyone searching the title that litigation affecting the property is pending, and Colorado requires you to record it in the county clerk and recorder’s office within the same six-month window. Filing the suit without the lis pendens leaves the lien unenforceable.4Justia. Colorado Code 38-22-110 – Action Commenced Within Six Months
If the court rules for the claimant, it may order the property sold to satisfy the debt, along with interest, costs, and attorney fees.
How an Owner Can Clear the Lien With a Bond
An owner who needs clean title before the foreclosure case plays out can substitute a surety bond for the lien. The bond must equal one and one-half times the lien amount plus any costs allowed to date, and a district court judge in the county where the property sits must approve it.5Justia. Colorado Code 38-22-131 – Substitution of Bond Allowed
Once the bond is filed and approved, the property is released and the claimant’s foreclosure right shifts to the bond. If the claimant prevails, the bond’s principal and sureties pay the judgment, including any interest and costs that would have been recoverable through foreclosure of the property.5Justia. Colorado Code 38-22-131 – Substitution of Bond Allowed
Penalties for Filing an Excessive Lien
Colorado punishes claimants who inflate what they claim. If you file a lien for more than you are owed, knew the amount was inflated when you filed, and had no reasonable possibility the full amount was due, you forfeit all rights to the lien. You also become liable to the property owner for all costs and attorney fees the owner incurred fighting the claim.6Justia. Colorado Code 38-22-128 – Excessive Amounts Claimed
The statute requires both knowledge and lack of reasonable basis, so an honest calculation error won’t trigger forfeiture. Deliberately padding a lien to gain leverage, or sweeping in amounts from a different project, does. Beyond statutory forfeiture, a knowingly false lien can expose the claimant to civil liability for slander of title, with compensatory damages and, in egregious cases, punitive damages. Lien only for what you are actually owed, document every dollar, and get the math right before you record.
How Owners Can Challenge a Lien
Owners and other parties facing a Colorado mechanics lien have several defenses, and the procedural ones are usually the strongest because the statute is so unforgiving about compliance.
Procedural Defects
The ten-day notice is the first thing to check. If the claimant didn’t serve the notice of intent on both the owner and the prime contractor at least ten days before recording, or didn’t file the required affidavit of mailing with the lien, the lien is invalid.2Justia. Colorado Code 38-22-109 – Lien Statement
Other grounds include recording after the four-month deadline, failing to verify the lien statement under oath, omitting required information from the statement, and failing to commence foreclosure and record a lis pendens within six months of the last work.4Justia. Colorado Code 38-22-110 – Action Commenced Within Six Months
Payment Defense
Colorado gives the owner an affirmative defense where the owner, or someone acting for the owner, has already paid enough to satisfy the owner’s contractual and legal obligations. The defense recognizes that an owner who paid in full shouldn’t be stuck with the fallout from a general contractor’s failure to pass money down the chain. It doesn’t automatically defeat the lien, but it shifts the fight toward the relationship between the general contractor and the unpaid party.7Justia. Colorado Code 38-22-102 – Payments
Lien Waivers
Lien waivers are routine in Colorado construction payment. A conditional waiver takes effect only when the associated payment actually clears; an unconditional waiver takes effect the moment it is signed, whether the money has arrived or not. Signing an unconditional waiver before you have the funds in hand means you’ve given up your lien with nothing to show for it. Colorado does not prescribe a mandatory waiver form, so the language of each document controls, and overly broad wording can waive more than the parties intended. Courts enforce clear and unambiguous waivers, though a waiver obtained through fraud or coercion is open to challenge.
Public and Federal Projects: No Lien, Bond Claim Instead
Mechanics liens do not attach to government-owned property. If the project is public, the remedy is a claim against the contractor’s payment bond, not a lien on the building.
On Colorado state and local public projects, an unpaid subcontractor or supplier files a verified claim with the public body that awarded the contract before final settlement. For contracts over $150,000, the awarding body must publish notice of final settlement at least twice in a newspaper of general circulation (or an approved electronic medium) no later than ten days before final settlement. Once a claim is filed, the public body must withhold enough money from the general contractor to cover it, and those withheld funds can’t be held longer than ninety days after the published final settlement date unless the claimant files a lawsuit and lis pendens within that window.8Justia. Colorado Code 38-26-107 – Notice
Federal projects are governed by the Miller Act, not Colorado law. Prime contractors on federal construction contracts over $100,000 must post a payment bond. First-tier subcontractors and suppliers can sue on the bond in U.S. District Court between 90 days and one year after their last labor or materials, with no preliminary notice required. Second-tier subcontractors must give the prime contractor written notice within 90 days of their last work before they can sue.9U.S. General Services Administration. The Miller Act – Payment Protection for Subcontractors and Suppliers