Jessica Tresham
Partner
Article
9
The Supreme Court has handed down judgment in Abbey Healthcare (Mill Hill) Ltd v Augusta 2008 LLP (formerly Simply Construct (UK) LLP).
The judgment brings welcome clarity to the question: is a collateral warranty a "construction contract" under Part II of the Housing Grants, Construction and Regeneration Act 1996 (the Construction Act), so as to give rise to a right to statutory adjudication?
The Supreme Court unanimously held, amongst other things, that:
This judgment overrules both the prior decision of the Court of Appeal in this case, and the earlier decision in Parkwood Leisure Ltd v Laing O'Rourke Wales and West Ltd [2013].
We examine the background to the decision and the Supreme Court's reasoning in more detail below.
As noted above, the Supreme Court has now unanimously reversed the decision of the Court of Appeal, confirming that the Abbey Collateral Warranty was not a construction contract within the meaning of s. 104(1) of the Construction Act. In reaching its decision, the Court considered two issues:
Section 108 of the Construction Act gives "a party to a construction contract…the right to refer a dispute arising under the contract for adjudication". Section 104(1) defines a "construction contract" as an agreement for (amongst other things) the "carrying out of construction operations".
Accordingly, the issue to be determined was whether a collateral warranty was an agreement "for" the carrying out of construction operations.
The Supreme Court held that:
In light of the above, the Supreme Court concluded that a collateral warranty will not amount to an agreement "for" the carrying out of construction operations "if it merely promises to perform obligations owed to someone else under the building contract." For it to do so, there would need to be a "separate or distinct obligation to carry out construction operations for the beneficiary; not one which is merely derivative and reflective of obligations owed under the building contract."
The Court of Appeal's interpretation of the wording of the Abbey Collateral Warranty had been critical to its decision. This provided that Simply "has performed and will continue to perform" its obligations under the Building Contract. Coulson J in the Court of Appeal considered that this was a "warranty of both past and future performance of the construction operations".
The Supreme Court held that:
This decision provides welcome clarity to those in the construction industry and their advisers on where they stand in relation to disputes arising out of collateral warranties. The dividing line set out by the Supreme Court (i.e. that most collateral warranties will not be construction contracts, unless they give rise to separate or distinct undertakings for the carrying out of construction operations) offers a "workable" approach and much-needed certainty on whether disputes under a collateral warranty must be adjudicated.
As the Supreme Court observed, it is open to parties who wish to have the right to adjudicate under ancillary contracts such as collateral warranties to include drafting to provide for this, in conjunction with their legal team, in such agreements. However, following this decision, it is clear that adjudication under collateral warranties will be voluntary, and that they fall outside the scope of mandatory statutory adjudication under the Construction Act.
NOT LEGAL ADVICE. Information made available on this website in any form is for information purposes only. It is not, and should not be taken as, legal advice. You should not rely on, or take or fail to take any action based upon this information. Never disregard professional legal advice or delay in seeking legal advice because of something you have read on this website. Gowling WLG professionals will be pleased to discuss resolutions to specific legal concerns you may have.
Gowling WLG is an international law firm comprising the members of Gowling WLG International Limited, an English Company Limited by Guarantee, and their respective affiliates. Each member and affiliate is an autonomous and independent entity. Gowling WLG International Limited promotes, facilitates and co-ordinates the activities of its members but does not itself provide services to clients. Our structure is explained in more detail on our Legal Information page.
© 2026 Gowling WLG All rights reserved.