Practical Completion in Construction: Meaning, Certificate and Checklist

What is practical completion?

Practical completion (PC) is the contractual milestone at which the works are finished to the point where the owner can use them. It does not mean perfect. Minor defects can remain, as long as they do not stop the building being used for its intended purpose.

Each contract defines practical completion in its own words. Australian standard-form contracts such as AS 4000 and AS 2124 broadly require three things:

• The works are complete, except for minor defects or omissions that do not prevent the works being reasonably capable of use for their stated purpose.
• Required tests have been carried out and passed.
• The documents and information the contract requires have been handed over, which normally includes O&M manuals, as-built drawings, warranties and certificates.

The third point is the one that catches contractors out. A building can be physically finished and still fail to reach practical completion because the handover documentation is not ready.

Why the date matters

Practical completion is usually the most consequential date in the contract. On most projects it:

• Starts the Defects Liability Period, typically 12 months, sometimes 24.
• Stops liquidated damages from accruing against the contractor.
• Triggers a partial release of security, often half of the retention or bank guarantee.
• Passes possession and insurance risk for the works to the owner.
• Starts warranty periods for installed equipment, which is why warranty start dates in the O&M manual should match the PC date.

Disagreements about whether PC has been reached are therefore expensive. A week's delay can mean a week of liquidated damages, a week later on security release and a later end date for the DLP.

The certificate of practical completion

Under AS 4000 and AS 2124 style contracts the Superintendent decides whether practical completion has been reached and issues a certificate stating the date. On other contracts it may be the principal, the architect or a contract administrator.

The usual sequence is:

1. The contractor gives notice that the works will soon be, or are, practically complete.
2. The Superintendent and principal inspect the works.
3. A defects list is prepared. Items that would prevent use must be fixed first; minor items are scheduled.
4. The Superintendent checks that tests are passed and the required documents have been received.
5. The certificate is issued with the date of practical completion, often with the schedule of minor defects attached.

If the Superintendent decides the works are not practically complete, they should say what remains to be done.

Practical completion checklist

Use this as a starting point. Your contract and the client's handover standard will add items.

Works

• All contract works complete apart from minor defects
• Pre-PC defects inspection done and critical items closed
• Site cleaned, temporary works and site facilities removed

Testing and commissioning

• All systems commissioned, with records signed off
• Fire systems tested and certified
• Witness tests completed where the client requires them

Documentation

• O&M manuals submitted and accepted (see our O&M manual guide)
• As-constructed drawings submitted
• Warranties collected, with start dates matching the PC date
• Certificates of compliance and design certifications collected
• Occupancy or final certificate from the building certifier (in Queensland, the certificate of classification or final inspection certificate, depending on building class)
• Asset register in the client's required format

Handover

• Keys, access cards and codes handed over and recorded
• Training sessions for the facilities team delivered and recorded
• Building user guide provided where required

Practical completion vs final completion

Practical completion and final completion are different milestones:

Between the two sits the Defects Liability Period, when the contractor returns to fix defects that appear once the building is in use.

How Procom helps you reach practical completion

The documentation side of practical completion is where Procom fits. Each subcontractor fills their sections of the handover manual through their own portal while the job is under way. The head contractor can see which sections are complete, under review or missing, so documentation gaps show up months before PC instead of during the final inspection. Once PC is certified, outstanding defects move straight into DLP tracking.

Frequently asked questions