Skip to main content
NEC4 / JCT Pro Forma

Delay & Extension of Time Notice Form

A blank, ready-to-complete delay and extension of time notice. Set out the delaying event, the contractual grounds, the effect on the programme and critical path, and the extension claimed — notified promptly with records attached.

1 · Notice details

Project name
Full project name as stated in the subcontract
Subcontract / contract reference
Exactly as it appears in the subcontract
Notice number
Sequential — e.g. EOT-002
Date of notice
DD/MM/YYYY
From — notifying party
Company, contact name and role
To — contractor / Project Manager
As named in the subcontract
Related Early Warning / CE reference(s)
If an early warning or compensation event was raised
Current contractual completion date
DD/MM/YYYY — before this notice

2 · The delaying event

Description of the event causing delay — facts, dates and parties
Describe factually with dates. State what happened, who was responsible, and when you became aware.
Date the event arose
DD/MM/YYYY
Date you became aware
DD/MM/YYYY
Is the event continuing?
Yes / No — if continuing, state expected end

3 · Contractual grounds relied on

Ground
Variation / change instruction
Late information or access
Client / employer default
Exceptional weather
Statutory undertaker / utilities
Force majeure / prevention
Other (detail below)
Clause(s) relied on and why the event qualifies
Link the facts in section 2 to the relevant contract clause(s)

4 · Effect on the programme

Activities affected (per the accepted / contract programme)
Identify the activities and dependencies affected
Critical path?
On the critical path
Not on the critical path
To be confirmed — float stated below
Float available
Working days, if any
Extension of time claimed
Working days
Revised completion date
DD/MM/YYYY

5 · Mitigation

Steps taken or proposed to mitigate or reduce the delay
What you are doing, and what you need the other party to do

Notify promptly — most contracts require notice of delay within a set period of becoming aware, and continuing failure to notify can reduce or bar an extension of time. This notice does not waive any related compensation event or loss-and-expense claim, which should be notified separately.

6 · Supporting records attached

Programme extract
Progress records
Site diaries
Correspondence
Weather records
Photographs
Other (list below)
Records list
Contemporaneous records carry the most weight

7 · Issued by

Signed
Name and position
Date
DD/MM/YYYY

8 · Recipient response

Extension of time granted as claimed
Extension granted in part — revised date below
Rejected — reasons given
Further information requested
Revised completion date awarded
DD/MM/YYYY
Responder name
Date of response
DD/MM/YYYY

How to use this form

  1. 1

    Complete section 1 and cross-reference any earlier early warning or compensation event raised for the same matter.

  2. 2

    Describe the delaying event factually in section 2 with the key dates, then tick the contractual ground(s) in section 3 and explain why the event qualifies.

  3. 3

    Set out the programme effect in section 4 against the accepted or contract programme, and state whether the event hits the critical path.

  4. 4

    Record your mitigation in section 5 — a demonstrated effort to reduce the delay supports the claim.

  5. 5

    Serve the notice promptly, keep proof of service, and chase the recipient's response — many contracts impose a strict notification period.

Get the printable PDF version

Enter your details and we'll email you a printable PDF of the Delay & Extension of Time Notice Form — formatted for A4 and ready to use on site or in the office.

Choose your version

Related guides

Liquidated Damages: What Subcontractors Need to KnowThe Complete Subcontractor Contract Review ChecklistScope Gaps in Subcontracts: How to Spot and Protect YourselfUnfair Clauses to Watch Out for in UK Subcontracts

Spot delay and damages risk early with LazyQS

Upload your subcontract and get a clause-level report on the programme, extension of time, and liquidated damages provisions — so you protect your position before delays bite.

Review my subcontract free