How do I write a variation claim?

Last reviewed July 5, 2026

Start by detailing the change. Include what the original scope was and how it's changed. Attach supporting documents like quotes, emails, or site instructions. Clearly state the cost and time impact. Follow your contract's specific requirements for variations.

Key points

  • Document the change clearly.
  • Attach relevant supporting evidence.
  • Specify cost and time impacts.

Variations come up often, so get it right. Check your contract for any specific clauses on how to submit these claims. Keeping track of all communications related to the change will back up your claim if there's a dispute.

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General information for Australian construction professionals — not legal advice. Verify jurisdiction-specific requirements with the relevant regulator.