Reviewed September 7, 2026.
For a Syracuse construction project, identify the type of work and property before calculating a mechanic’s lien deadline. The date of an invoice or payment demand does not necessarily start the filing period.
- Most private improvements: generally eight months from the last qualifying labor or materials.
- Single-family improvements: generally four months, subject to the specific developer-owned subdivision exception. A two-family property is not automatically subject to the four-month period merely because it is residential.
- Retainage: a separate period of 90 days after retainage was due to be released.
- New York public improvements: filing is permitted before completion and acceptance and within 30 days after both have occurred.
Sources: Lien Law § 10 and § 12. Condominium units, common elements, cooperative interests and development projects require a factual review; a shorthand project label can produce the wrong answer.
Filing is only one deadline
For private liens, owner and specified contracting-party service generally must occur within five days before or 30 days after filing, with required proof filed within 35 days after the notice. See § 11 and § 11-b. Public-lien service and proof follow the different timing in § 11-c.
A private lien generally lasts one year unless properly continued or enforced under § 17. Single-family extensions require a court order. Address extension or foreclosure before the current lien expires and review any demand requiring earlier enforcement.
Kushnick Pallaci PLLC assists with mechanic’s lien filing and disputes throughout New York. Contact 631-752-7100 or vtp@kushnicklaw.com; see current office information.
Attorney Advertising. General information, not legal advice or a determination of a particular claim’s deadline.
