How do I substantiate a delay notice?

Last reviewed July 5, 2026

Gather all relevant evidence to support the delay. This includes project schedules, site diaries, and correspondence with subbies. Detail the cause of the delay and how it impacted the timeline. Refer to any contract clauses that apply.

Key points

  • Collect project schedules and site diaries.
  • Document correspondence with subbies.
  • Cite relevant contract clauses.

Review the contract for clauses on delays. Gather documentation related to the delay, like emails, meeting notes, and daily reports. Clearly link your evidence to the reasons for the delay and how it affected the project timeline.

How Alloovium helps

Alloovium can help you find and structure data from your project documents to back up your delay notice.

See how it works

Related questions

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