Adjudication, Records, and the £180,000.00 Lesson.

Jacob Austin unpacks adjudication in Episode 138 of The Subcontractors Blueprint — cutting through the fear around it to explain why it's a commercial lever, not a last resort. He breaks down two routes available under the Housing Grants Construction and Regeneration Act 1996: the smash-and-grab adjudication for enforcement of a notified sum when pay-less notices are missed, and the true value route for deeper valuation disputes. More critically, he explains what makes a claim winnable - and why most subcontractors lose before the adjudicator is ever appointed, through poor records, missed notice windows, and applications that don't meet the statutory standard.

Key Takeaways

  • A smash-and-grab adjudication only works if your payment application clearly states the sum and the basis of calculation, a vague applications undermine your position before the argument even begins.
  • Under the S&T v Grove Court of Appeal decision, if payer fails to serve a valid pay-less notice, they must pay the notified sum in full first - any argument about valuation happens after payment.
  • Subcontractors don't lose adjudications because their claims were wrong — they lose because records didn't exist or can't withstand scrutiny from someone who wasn't on the project.
  • A site diary written the day an event occurs by the person who was present carries significantly more evidential weight than a narrative compiled from memory months later.
  • Under JCT, a verbal instruction confirmed back in writing becomes as good as a written instruction if the contractor doesn't challenge it within a reasonable period — most subcontractors never do this and leave recoverable cost completely unprotected.
  • The 28-day 3rd-party test: could someone with no knowledge of your project follow the events from contract start to the sum you're claiming, using only your documents? If not, your records need work.

Best Bits

  • "Adjudication doesn't have to be a last resort. It's a commercial lever."
  • "By the time you're in a 28 day adjudication, you do not have time to go back and rebuild a paper trail."
  • "A site diary with gaps can be weaker than no site diary at all, because the gaps become the story."
  • "The contemporaneous record is your witness, so you need to build it like one."
  • "If you serve incorrectly or to the wrong address and notice that could otherwise have been perfect can become invalid."
  • "Your records are your case. Contemporaneous, traceable, and contract correct records are your friend in adjudication."

Host Bio

Jacob Austin is a Chartered Quantity Surveyor with over a decade of experience in UK construction, having worked across education, health, and residential developments from £1,000s to over £300m of concurrent projects with some of the industry's leading contractors. Through The Subcontractors Blueprint podcast and The Subcontractors Blueprint Academy, he's on a mission to give the UK's 1 million SME subcontractors the commercial knowledge they need to protect their margins, manage risk, and build stronger businesses. His approach is direct, practical, and grounded in real contract experience- no theory, no fluff.

Links

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