Practical Completion
Practical completion is the contractual milestone when a building is sufficiently complete for its intended purpose, triggering key obligations like defects liability and final payment.
Practical completion (PC) is one of the most significant milestones in a construction contract. It's the point at which the works are complete — or complete enough — for the building to be used for its intended purpose, even if minor defects remain. When PC is reached, several critical things happen simultaneously.
First, the risk of loss or damage typically transfers from the contractor to the developer. Second, the defects liability period begins — usually 12 months during which the contractor must return to fix any defects that emerge. Third, the contractor is entitled to release of the first half of retention monies. And fourth, the clock stops on liquidated damages.
Getting PC right matters because it triggers real financial consequences. If you certify PC too early, you lose your leverage to get the contractor to finish properly. If you delay PC unreasonably, the contractor can claim additional costs. The superintendent's role in assessing PC is critical — they need to inspect the works, identify any outstanding items, and make a judgment call on whether what's left is genuinely minor.
For developers selling off-the-plan, practical completion also triggers settlement timelines with purchasers. Miss PC and your buyers start getting nervous — or worse, start exercising sunset clauses. This is why PC tracking isn't just a contract admin task; it's a commercial imperative.
How UpScale Handles This
UpScale tracks your project timeline from start to practical completion, including all the events that affect it — approved variations, extensions of time, and program changes. You can see exactly where your project stands relative to the contracted completion date, so there are no surprises when PC approaches.
Related Terms
Defects Liability Period
The defects liability period (DLP) is a contractually defined period after practical completion during which the contractor is obligated to return and rectify any defects that become apparent.
Retention (Construction)
Retention is a percentage of each progress payment withheld by the principal as security against defective work, typically released in two stages — at practical completion and at the end of the defects liability period.
Progress Claims
A progress claim is a contractor's formal request for payment for work completed during a specific period on a construction project.