Colorado mechanic's liens

Who and what this applies to

Limited to the construction category and statutory provision described below.

The rules

• Colorado generally requires a lien statement within four months after the claimant last furnishes labor or materials. A special rule gives laborers working by the day or piece, without furnishing other laborers or materials, two months after building completion. At least ten days before filing, the claimant must serve notice of intent on the owner or reputed owner and the principal contractor or agent using the statutory service method, and file an affidavit of service with the lien statement. Source
• Section 38-22-109(10) also permits a timely statutory notice extending the filing period to the earlier of four months after project completion or six months after the notice filing; the extension remains subject to subsections (10)–(11) and §38-22-125. Source

Primary sources

• C.R.S. §38-22-109(3)–(5), (10)–(11)
• Official links to 2026 Title 38

Sources reviewed 2026-09-30. This guide covers the projects and rules stated above.

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