How do I claim an extension of time under an AS 4000 contract?
Last reviewed July 5, 2026
Claim an extension of time under an AS 4000 contract by submitting a written notice to the superintendent outlining the reasons for the delay. Include any supporting documentation and do this within the specified time frame after the event causing the delay.
Key points
- Give written notice to the superintendent.
- Outline reasons for the delay.
- Include supporting documents.
- Submit within the required time frame.
Under AS 4000, you need to act quickly when claiming an extension of time. The contract usually specifies the timeframe for notifying the superintendent about the delay. Make sure you have all your evidence ready, like site records or correspondence with subcontractors, to back up your claim.
How Alloovium helps
Alloovium can help you pull relevant documents and track deadlines to make your extension of time claims easier.
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General information for Australian construction professionals — not legal advice. Verify jurisdiction-specific requirements with the relevant regulator.