Lien waiver
A lien waiver is a legal document used to manage and mitigate the risk of payment disputes on construction projects. Though more commonly associated with U.S. law, similar concepts exist in the UK, but they are typically referred to under different terms such as "waiver of set-off" or "no lien agreements."
A lien waiver is used to confirm that a contractor, subcontractor, or supplier has received payment for work performed or materials provided and, in return, agrees to waive any future claims or rights to place a lien on the property in relation to the specific payment.
Lien waivers can be conditional (the waiver is issued when the payment is made but has not yet been cleared and becomes effective once the payment is successfully processed) or unconditional (the waiver is issued when payment has been received and confirmed, relinquishing any right to claim a lien.)
In the UK, construction law does not typically use the term "lien" in the same way as U.S. law. Instead, the construction industry may use mechanisms such as "waivers of set-off" to prevent claims against the employer or main contractor once payment is made. These waivers serve to protect the paying party from any further claims related to the specific payment.
However, the concept of a lien does exist in certain forms, such as retention of title (RoT) clauses which allow a supplier to retain ownership of materials until full payment is made. The Construction Act 1996 provides mechanisms for payments and disputes, which indirectly address some of the concerns that lien waivers cover in other jurisdictions.
Lien waivers or equivalent provisions are often incorporated into construction contracts to ensure clarity and to avoid potential disputes regarding payments. They are particularly relevant in large construction projects where multiple subcontractors and suppliers are involved, and managing payment risks is crucial.
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