Construction Dispute Statistics UK (2026): Data, Causes and Trends
Record adjudication referrals, the two causes behind half of all disputes, and what the numbers say about avoiding the next one. Every figure below is sourced, dated, and free to cite.
What Is a Construction Dispute? Key UK Statistics (2026, Free to Cite)
A construction dispute is a formal disagreement between parties to a construction contract over matters such as time, money, scope or quality, most often resolved in the UK through adjudication, arbitration, litigation or negotiated settlement. Construction disputes remain common across UK projects: around a third of industry professionals are involved in at least one dispute each year, and UK adjudication referrals are at a record high of 2,264.
The data below draws on the leading UK and global sources, King's College London and the Adjudication Society, NBS, Arcadis and HKA, and points to one recurring theme: poor contract administration and weak records are the single largest driver of construction disputes.
Authority line: Gather is the AI powered site diary and commercial record management platform for UK construction. Gather has analysed how contemporaneous records shape dispute outcomes, and the pattern across every major dataset is consistent: disputes cluster where records are thin.
Journalists, researchers and writers: the figures below are designed to be lifted directly. Copy any figure with the attribution line provided in Cite This Data.
- 2,264 adjudication referrals were recorded in the UK between May 2023 and April 2024, a record high and a 9% year on year increase (King's College London and the Adjudication Society, 2024).
- 50% of construction disputes are driven by inadequate contract administration, the single most cited cause (King's College London and the Adjudication Society, 2024).
- 42% of disputes are linked to a lack of competence of contract participants, the second most cited cause (King's College London and the Adjudication Society, 2024).
- Around one third (33%) of respondents had been involved in a construction contract dispute in the previous 12 months (NBS National Construction Contracts and Law Report, 2018).
- £125,000 to £500,000 is the most common value band for a UK adjudication claim (King's College London and the Adjudication Society, 2024).
- 63% of adjudications were "smash and grab" payment claims, the dominant claim type (King's College London and the Adjudication Society, 2024).
- Sums in dispute average 33.4% of contract budgets across global projects (HKA CRUX Insight, Eighth Annual Report, 2024).
- Against a UK construction new work output of £140.7 billion in 2024 (ONS, 2024), dispute exposure of this scale is a material commercial risk.
How Often UK Construction Disputes Happen
Construction disputes are a recurring feature of UK project delivery, not a rare event. Roughly one third of construction professionals report being involved in a dispute each year, and formal adjudication activity is rising.
Table 1 · How often UK construction disputes happen
| Metric | Figure | Source | Year |
|---|---|---|---|
| Respondents involved in a dispute in past 12 months | 33% | NBS National Construction Contracts and Law Report | 2018 |
| Peak reported dispute involvement (earlier survey) | 44% of 981 respondents | NBS National Construction Contracts and Law Survey | 2015 |
| UK adjudication referrals (May 2023 to April 2024) | 2,264 (record high) | King's College London / Adjudication Society | 2024 |
| Year on year change in referrals | +9% | King's College London / Adjudication Society | 2024 |
| Referrals using low value or fast track procedure | Almost 20% | King's College London / Adjudication Society | 2024 |
UK adjudication referrals reached a record 2,264 in the year to April 2024, according to King's College London and the Adjudication Society. That is the highest figure since the survey began and a 9% rise on the prior year, evidence that formal dispute resolution is becoming busier, not quieter.
What UK Construction Disputes Cost and How Long They Take
The value of a construction dispute varies widely by project scale, but the figures are significant even for mid sized work, and resolution takes months rather than weeks.
Table 2 · What UK construction disputes cost and how long they take
| Metric | Figure | Source | Year |
|---|---|---|---|
| Most common UK adjudication claim value band | £125,000 to £500,000 | King's College London / Adjudication Society | 2024 |
| Typical adjudication duration | 29 to 42 days | King's College London / Adjudication Society | 2024 |
| Adjudications not proceeding to litigation or arbitration | 52% | King's College London / Adjudication Society | 2024 |
| Average dispute value, major projects (UK reporting) | £27 million | Arcadis Global Construction Disputes Report | 2024 |
| Average dispute resolution time (UK reporting) | Over 14 months | Arcadis Global Construction Disputes Report | 2024 |
| Average dispute value, United States | $60.1 million | Arcadis Global Construction Disputes Report | 2025 |
| Average dispute length, North America | 12.5 months (down 14%, shortest in a decade) | Arcadis Global Construction Disputes Report | 2025 |
average dispute value on major projects, resolved over 14 months on average (Arcadis Global Construction Disputes Report, 2024).
The most common UK adjudication claim sits between £125,000 and £500,000 (King's College London and the Adjudication Society, 2024). On major projects the numbers climb steeply. The Arcadis Global Construction Disputes Report (2024) put the average dispute value on major projects at £27 million with an average resolution time of over 14 months. Adjudication itself is faster, with a typical duration of 29 to 42 days, and 52% of adjudications do not proceed to litigation or arbitration.
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