Adjudication is the primary mechanism for resolving disputes in the UK construction industry. Introduced under the Housing Grants, Construction and Regeneration Act 1996, it provides a fast, interim decision — typically within 28 days of the adjudicator's appointment. Because of that speed, procedural issues and preparation carry significant weight. A well-founded claim can be undermined by poor framing; a weak claim can succeed if the responding party is disorganised.
For both employers and contractors, the key issues are rarely limited to the legal merits of the claim. Questions such as whether a dispute has crystallised, how the dispute is defined and the timing of proceedings can significantly influence the outcome.
Has the dispute crystallised?
Before adjudication can begin, a dispute must exist. This is not simply a procedural formality — it is a substantive jurisdictional requirement, and one that is regularly tested.
A dispute generally crystallises when one party makes a claim or asserts a position, and the other party rejects it, disputes it, or fails to respond within a reasonable period. The courts have considered this question extensively, and the principle is well established: the responding party must have had a reasonable opportunity to consider the claim before adjudication proceedings are commenced.
Starting adjudication prematurely — before the other party has had adequate time to engage with the claim — creates a real risk of a successful jurisdiction challenge. If the adjudicator is found to lack jurisdiction, the decision will be unenforceable. For employers and contractors alike, ensuring that the dispute has properly crystallised is often the first procedural hurdle that needs to be cleared before proceedings begin.
Defining the dispute clearly
Adjudication depends heavily on how the dispute is framed. The notice of adjudication defines the issues that the adjudicator has jurisdiction to determine. If the dispute is not clearly and accurately described, the consequences can be significant.
Common issues include whether the dispute concerns a single defined question or multiple overlapping issues, whether the claim is sufficiently particularised for the adjudicator to understand what is being sought, and whether certain matters fall within or outside the scope of what has been referred. Poorly defined disputes routinely generate jurisdiction challenges from the responding party, which can result in partial decisions, contested enforcement and unnecessary complexity.
Careful definition of the dispute at the outset is not simply a drafting exercise. It determines the scope of the adjudicator's authority and, in turn, the enforceability of the decision that follows.
Timing and project dynamics
One of the most commercially significant questions in construction adjudication is not whether to adjudicate but when. Adjudication can be commenced at any time during a construction contract, including while works are ongoing. That flexibility creates genuine strategic choices — and genuine risks.
Commencing adjudication during a live project can disrupt working relationships, affect programme delivery and create an adversarial dynamic at precisely the point where cooperation matters most. For contractors, the pressure of ongoing delivery may limit the time and resource available to respond properly. For employers, the risk of a contractor becoming defensive or disengaged mid-project is a real commercial consideration.
Conversely, delay can result in lost entitlement, weakened evidence and a deterioration in the commercial position. The decision on timing requires careful assessment of the project context, the nature of the dispute and the likely commercial consequences of proceeding — or waiting.
Evidence and project records
Adjudication moves quickly. The referral, response and reply are typically exchanged within a matter of weeks, and the adjudicator will make a decision on the basis of the documents submitted. There is rarely an opportunity to supplement a weak evidential position once proceedings are underway.
The quality of project records therefore has a direct bearing on the outcome. Contemporary records — instructions, variations, payment applications, site diaries, correspondence and programme updates — provide the factual foundation on which a claim or a defence is built. Where those records are incomplete, inconsistent or difficult to assemble at short notice, the party relying on them is at a disadvantage.
In practice, the party with the stronger and better-organised project records often holds a significant advantage in adjudication, independent of the underlying legal merits. This is a point that is sometimes only appreciated once proceedings have begun.
Cashflow and commercial leverage
Adjudication is most frequently used in payment disputes, and its commercial function is often as important as its legal one. An adjudicator's decision is temporarily binding — it must be complied with pending final determination by litigation or arbitration — and this creates real leverage.
A successful adjudication decision in a payment dispute can shift the cashflow position on a project significantly. For a contractor facing a withheld payment, a favourable decision can restore liquidity and rebalance the commercial relationship. For an employer, a decision upholding a set-off or counterclaim can be equally significant.
It is also worth recognising that adjudication does not always need to run to a decision. The commencement of proceedings, or the credible threat of them, frequently brings parties to the table. The commercial leverage that adjudication creates — even before a decision is issued — is part of its practical value in the construction industry.
Practical considerations
- Confirm that the dispute has properly crystallised before commencing adjudication — a premature referral creates jurisdiction risk
- Define the scope of the dispute with precision in the notice of adjudication, and ensure the referral is consistent with that definition
- Review the quality and completeness of project records before proceedings begin — gaps in the evidential position are difficult to address once the process is underway
- Consider the timing of adjudication in the context of the project, including the effect on working relationships, programme delivery and the overall commercial position
- Assess the commercial consequences of a decision, both favourable and adverse, before committing to adjudication — including the impact on cashflow and negotiating leverage
- Where proceedings are anticipated, preserve contemporaneous records and correspondence as a matter of priority
Conclusion
Adjudication is now firmly embedded in the UK construction industry as the standard mechanism for rapid interim dispute resolution. Its speed and accessibility are genuine advantages. But that speed places a significant premium on preparation, procedural accuracy and strategic judgement.
For employers and contractors alike, the key issues are rarely limited to the legal merits of the claim. Procedural questions — whether a dispute has properly crystallised, how the issues are defined, the quality of the evidential record and the commercial timing of proceedings — often play an equally significant role in determining the outcome. Engaging with those questions at an early stage, before proceedings begin, is typically where the most valuable advisory input can be provided.
We regularly advise employers, contractors and investors on construction disputes, including adjudication strategy, dispute crystallisation and preparation of claims and responses.
This includes advice on whether a dispute has properly crystallised, how to define and frame the issues for referral, and the preparation of referrals, responses and replies within adjudication proceedings.
Please contact us if you are facing a dispute or considering adjudication.