Building a Defensible Claim: Documentation from Day One

By the time a dispute reaches adjudication, arbitration, or even a serious negotiation, the underlying facts of what happened on site are rarely the deciding factor. What decides most claims is whether the party bringing them can prove, with contemporaneous evidence, that a specific event caused a specific delay or cost, and that the contractual notice mechanism was followed. Merit without proof rarely succeeds.

What "contemporaneous" actually means

A record written up weeks or months after the event, reconstructed from memory or from a programme run retrospectively, carries far less evidential weight than a site instruction, diary entry, or photograph captured on the day. Assessors and adjudicators discount reconstructed narratives — understandably, since hindsight tends to tidy up causation in ways that didn't exist in real time.

The documentation discipline that protects entitlement

• Notices issued within the timeframe the contract actually specifies — not "as soon as convenient"
• Daily or weekly records that tie a specific cause to a specific effect on progress, not general commentary
• Programme impact analysis prepared close to the event, showing critical path effect rather than asserted afterwards
• Cost substantiation — actual records, not a lump-sum estimate produced at the end of the project
• A correspondence trail that shows the issue was raised, not just experienced

Start the discipline before there's a dispute

The teams that recover fair entitlement are the ones that treated documentation as a routine commercial discipline from the start of the project, not as something to assemble once a dispute looks likely. Waiting until a claim is anticipated to start building the record is usually too late — the contemporaneous evidence that would have supported it was never captured. Good claims administration is, in practice, indistinguishable from good project administration.