Assignment of construction contracts
Assignment is the right to transfer 'choses in action' defined as 'all personal rights of property which can only be claimed or enforced by action and not by taking physical possession'.
This definition includes benefits arising under a construction contract such as right to payment, but not burdens such as the obligation to pay. The definition also includes claims for breach of contract.
A common error is to assume that the right to assign must be agreed as part of a contract, like a novation. Assignment is a unilateral right created by statute, Section 136 of The Law of Property Act 1925 or by the law of equity (law developed by the Chancery Division of the High Court of England and Wales).
Whilst not a contractual right, the right to assign can be excluded, or restricted, by contract, for example, it is common in collateral warranties to restrict to one assignment without the written permission of the warrantor.
Under Section 136 of The Law of Property Act 1925 the formalities required to create an effective legal assignment are:
- An absolute (i.e. not part of a debt or by way of charge only) assignment in writing signed by the assignor.
- A debt or other legal right of action.
- Express notice in writing to the debtor (no particular form of wording is necessary).
An assignment which fails to comply with the above formalities may, nevertheless, still be effective as an equitable assignment. Indeed an equitable assignment may be verbal. There is no substantial difference between legal and equitable assignments (though, of course it will be easier to prove a legal assignment), there are, however, procedural differences.
The assignee of a legal assignment sues the debtor in the assignee's own name. The assignee of an equitable assignment of a legal chose in action or an equitable chose that is not absolute, must join the assignor (as claimant if the assignor agrees, or defendant if not ) into any legal proceedings.
The effect of a legal or equitable assignment is to put the assignee in the same position as the assignor in respect of the benefits (not burdens) arising from the original transaction with the debtor. Consequently:
'... a debt which accrues due before notice of assignment is received, whether or not it is payable before that date, or a debt which arises out of the same contract as that which gives rise to the assigned debt, or is closely connected with that contract, may be set off against the assignee.'
(Ref. Business Computers Ltd v Anglo African Leasing Ltd.)
A counterclaim for unliquidated damages may also be set off by the debtor, but only to the value of the assigned debt. Further when there have been successive assignments the debtor cannot set off against claims by the ultimate assignee, counterclaims which the debtor has against intermediate assignees.
The Scottish law equivalent is assignation.
[edit] Related articles on Designing Buildings
- Alienation covenant.
- Appointing consultants.
- Assignation.
- Assignment of choses in action.
- Assignment of debt.
- Construction contracts.
- Difference between assignment and novation.
- Difference between collateral warranties and third party rights.
- Legal and equitable assignment.
- Novation.
- Novation agreement.
- Privity of contract.
- Privity of title.
- Proprietary information.
- Recovery of third party losses.
- Reliance letter.
- Restrictions on assignment.
- Reverse premium.
- Set off.
- The Contracts (Rights of Third Parties) Act.
- Title.
- Warranty.
[edit] External references
Featured articles and news
Professional practical experience for Architects in training
The long process to transform the nature of education and professional practical experience in the Architecture profession following recent reports.
A people-first approach to retrofit
Moving away from the destructive paradigm of fabric-first.
International Electrician Day, 10 June 2025
Celebrating the role of electrical engineers from André-Marie Amperè, today and for the future.
New guide for clients launched at Houses of Parliament
'There has never been a more important time for clients to step up and ...ask the right questions'
The impact of recycled slate tiles
Innovation across the decades.
EPC changes for existing buildings
Changes and their context as the new RdSAP methodology comes into use from 15 June.
Skills England publishes Sector skills needs assessments
Priority areas relating to the built environment highlighted and described in brief.
BSRIA HVAC Market Watch - May 2025 Edition
Heat Pump Market Outlook: Policy, Performance & Refrigerant Trends for 2025–2028.
Committing to EDI in construction with CIOB
Built Environment professional bodies deepen commitment to EDI with two new signatories: CIAT and CICES.
Government Grenfell progress report at a glance
Line by line recomendation overview, with links to more details.
An engaging and lively review of his professional life.
Sustainable heating for listed buildings
A problem that needs to be approached intelligently.
50th Golden anniversary ECA Edmundson apprentice award
Deadline for entries has been extended to Friday 27 June, so don't miss out!
CIAT at the London Festival of Architecture
Designing for Everyone: Breaking Barriers in Inclusive Architecture.
Mixed reactions to apprenticeship and skills reform 2025
A 'welcome shift' for some and a 'backwards step' for others.
Comments