Case Insights: John Holland v Kvaerner - The first warning against blended claims
In John Holland v Kvaerner [2005] NSWCA 254 the Court of Appeal dismissed a global claim that attempted to recover one combined figure for delay and disruption. The approach was described as inherently unsatisfactory. The claim mixed causes and costs without showing what produced what.
This case became the foundation of modern forensic analysis. It reminded the industry that delay, and disruption are not labels but factual outcomes that must be proven with evidence.
The Principle
A claim succeeds only when three things are clear.
1. The cause, being the event that changed the work.
2. The effect, being how that event altered performance.
3. The cost, being the additional expense proven by records.
When any of those steps are blended, the claim fails. The Court expects each cost to be traced back to a defined cause and evidenced by contemporaneous data.
Forensic Application
A forensic quantity surveyor rebuilds the cost story from the ground up. The analysis can be arranged by activity, by work package, or even day by day. The method matters less than the discipline. Each event is separated and supported by its own records.
The QS links the cause to the cost through factual evidence, not assumptions. This is careful, forensic work based on what actually happened on site.
The Flaw in Disruption Techniques
Modern practice often relies on disruption techniques such as measured mile or productivity ratios. They may appear in the SCL Protocol but that does not make them proof. They can highlight a difference, but they do not establish cause and effect.
A forensic QS reaches conclusions from evidence, not from models. The numbers only matter once the facts are proven and the causes are clear.
Key Takeaway
Kvaerner was the first clear warning. Global claims collapse under scrutiny. The Court trusts clear, separated, factual cost evidence over analytical formulas.
Evidence wins; blended totals do not.
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