Practical completion is the date everything else pivots on
Practical completion is a single certified date, and a run of consequences hangs off it: retention, damages and the defects period all move the moment it is issued.
QScope Team · 24 March 2026 · 5 min read
Practical completion is the point at which the works are complete enough for the employer to take and use them, save for minor items still to be finished. On a PAM standard form the architect certifies it, and that certificate is one of the most consequential documents on the job. It is not a milestone to be marked and moved past. It is the switch that changes the contractual position on several fronts at once.
What the certificate triggers
A single date, several effects, all running from it.
- Retention. The first stage of the held fund is released, commonly half of what is held.
- Damages. The contractor exposure to damages for late completion ends at this date.
- Defects liability period. The period during which the contractor must make good defects begins.
- Final account. The run to closing out the account starts here.
Miss the significance of the date and you miss a retention release, a defects period that has to be diaried, and the start of the clock on the final account.
Complete, not perfect
Practical completion does not require the works to be flawless. It requires them to be complete but for minor outstanding items, which are then recorded and made good during the defects period. The tension is always the same: the contractor wants the certificate for the retention release and the end of damages exposure, the employer wants outstanding work finished first. The certificate resolves it by recognising substantial completion while carrying the snagging forward as a defined list.
Record the date and work from it
Because so much runs from the certified date, that date has to be captured and every consequence diaried against it. The first retention release claimed. The defects period end marked, because the second retention release depends on it. The damages exposure closed. A practical completion certificate filed and forgotten is a set of entitlements left unclaimed.
Treat practical completion as the pivot it is. One certified date, and a checklist of consequences to act on the moment it issues.
QScope ties the retention release, the defects period and the final account run to the practical completion date, so nothing tied to it slips through.