Builders' lien
A builders' lien or construction lien is a legal claim made by contractors, subcontractors, or suppliers against a property they have worked on or supplied materials to. It serves as a security interest in the property to ensure payment for work performed or materials provided.
The main purpose of a builders' lien is to provide protection for those involved in the construction process by ensuring they receive payment for their contributions. It acts as a form of collateral against the property until the debt is settled.
To file a lien, the claimant must typically register their interest with the appropriate authority. In the UK, this process involves submitting a claim to the High Court or the County Court. The lien must be filed within a specific time frame from when the work was completed or the materials were supplied, usually within 6 months. Once filed, it encumbers the property, meaning the property cannot be sold or refinanced without first addressing the lien. This provides leverage to the claimant to ensure they are paid.
Liens generally have a priority order, meaning some liens may take precedence over others. In the UK, the order of priority is typically determined by the date the lien was filed.
To resolve a builders' lien, the property owner must pay the debt owed to the claimant. This can be through direct payment or through other arrangements such as settlement negotiations. Once the debt is settled, the lien is removed from the property. If the debt is not paid, the claimant may enforce the lien through legal action, which can result in the sale of the property to satisfy the debt.
Proper notice must be given to the property owner before filing a lien. This typically involves a written notice outlining the claim and the amount owed. Strict time limits apply to filing and enforcing a builders' lien. Missing these deadlines can result in losing the right to claim the lien. Detailed and accurate records of the work performed and materials supplied are essential to support a lien claim. This includes contracts, invoices, and correspondence related to the project.
A builders' lien provides a critical tool for those in the construction industry to secure payment and protect their financial interests. However, it also imposes significant obligations and risks for property owners, who must be aware of their rights and responsibilities in managing and contesting lien claims.
[edit] Related articles on Designing Buildings
Featured articles and news
Preparing safety case reports for HRBs under the BSA
A new practical guide to preparing structural inputs for safety cases and safety case reports published by IStructE.
Male construction workers and prostate cancer
CIOB and Prostate Cancer UK encourage awareness of prostate cancer risks, and what to do about it.
The changed R&D tax landscape for Architects
Specialist gives a recap on tax changes for Research and Development, via the ACA newsletter.
Structured product data as a competitive advantage
NBS explain why accessible product data that works across digital systems is key.
Welsh retrofit workforce assessment
Welsh Government report confirms Wales faces major electrical skills shortage, warns ECA.
A now architectural practice looks back at its concept project for a sustainable oceanic settlement 25 years on.
Copyright and Artificial Intelligence
Government report and back track on copyright opt out for AI training but no clear preferred alternative as yet.
Embedding AI tools into architectural education
Beyond the render: LMU share how student led research is shaping the future of visualisation workflows.
Why document control still fails UK construction projects
A Chartered Quantity Surveyor explains what needs to change and how.
Inspiration for a new 2026 wave of Irish construction professionals.
New planning reforms and Warm Homes Bill
Take centre stage at UK Construction Week London.
A brief run down of changes intentions from April in an onwards.
Reslating an ancient water mill
A rare opportunity to record, study and repair early vernacular roofs.
CIOB Apprentice of the Year 2025/26
Construction apprentice from Lincoln Mia Owen wins this years title.
Insulation solutions with less waste for a circular economy
Rob Firman, Technical and Specification Manager, Polyfoam XPS explains.
Recycled waste plastic in construction
Hierarchy, prevention to disposal, plastic types and approaches.
UK Net Zero Carbon Buildings Standard V1 published
Free-to-access technical standard to enable robust proof of a decarbonising built environment.






















