Construction Delay Notice Template: What to Include Before You Send One

What is a construction delay notice?

A construction delay notice is a written record that tells the relevant party that a delay has occurred, or is likely to occur, on a construction project.

On site, a delay notice is used to flag that planned work has been affected by something outside the normal flow of works. That may include late design information, blocked access, weather, missing approvals, late materials, client instructions, or another contractor preventing work from proceeding.

The notice should not be treated as a long legal submission. Its first job is to create a clear, timely record.

A good construction delay notice answers five basic questions:

• What happened?
• When did it happen?
• What work was affected?
• What is the likely time, cost, or programme impact?
• What evidence supports the record?

The more specific the notice is, the easier it is for the project team to understand the issue later.

When should you send a construction delay notice?

A construction delay notice should usually be sent as soon as the delay is identified and there is enough information to describe the issue clearly.

Do not wait until the full cost or final programme impact is known before creating a record. On many projects, the full impact is only understood later. The early notice should still record the delaying event, the affected works, and the likely impact based on what is known at the time.

Common situations where a delay notice may be needed include:

• access to the work area is blocked
• design information is late, unclear, or changed
• the site is stood down because of weather
• materials or equipment are not available when required
• work is stopped because of a client, superintendent, or head contractor instruction
• another trade prevents planned work from proceeding
• approvals, permits, inspections, or hold points are not resolved
• plant or labour is held on standby because the crew cannot continue

The exact notice timing depends on the contract. Some contracts require notice within a strict timeframe. That is why you should start a solid habit for consitency : record the delay early, keep the evidence, and check the contract before sending formal wording.

What should a construction delay notice include?

A construction delay notice should include the project details, delay cause, date and time, affected works, location, likely impact, and available evidence.

At a minimum, include the following :

• Project details : Project name, site, contract/package, notice date. Identifies the job and record.
• Delay cause : What caused the delay. Explains the event being notified.
• Date and time : When the delay started and whether it is ongoing. Supports timing and duration.
• Location : The specific work area, zone, level, chainage, or section. Avoids vague site-wide claims.
• Affected works : What planned work could not proceed. Connects the delay to the programme.
• Labour impact : Crews or roles affected, if known. Supports standby or productivity impact.
• Plant impact : Idle equipment or hired plant affected, if known. Supports plant downtime records.
• Programme impact : Likely effect on sequencing, milestones, or completion. Helps explain time impact.
• Cost impact : Known or likely cost impact, if applicable. Creates an early commercial record.
• Evidence : Photos, videos, instructions, emails, site diary notes. Supports the notice later.
• Reservation of rights : A short note that further details may follow. Allows the record to be updated as impact becomes clearer.

The notice should be factual, avoids exaggerated wording and avoid blaming language unless the cause is clear and supported by evidence. The best notices are plain, specific, and easy to verify.

What evidence should support a delay notice?

A delay notice is stronger when it is supported by evidence created at the time of the delay.

Useful evidence can include:

• site photos showing the issue, obstruction, condition, or incomplete area
• short videos showing access problems, weather conditions, site conditions, or idle plant
• emails, RFIs, drawings, instructions, approvals, or meeting notes
• site diary entries showing what happened that day
• labour records showing who was affected
• plant records showing what equipment was idle
• delivery records or supplier correspondence
• weather records, where weather is the cause
• programme extracts showing the planned activity affected
• timesheets, docket notes, or dayworks records

Photos and videos are useful, but they need context. A photo of standing water, blocked access, or idle machinery is weaker if it does not show where it was taken, when it was taken, what work it affected, and why the crew could not continue.

A simple evidence note alongside it may be enough:

Photo taken at 8:42am on 27 May at Zone B access gate. Excavator and drainage crew unable to access trench area due to scaffold materials blocking the access route.

That context turns a basic photo into a more useful delay record.

Construction delay notice example wording

Use this as drafting example only. Check your contract requirements before sending formal notices.

Subject: Notice of delay : blocked access to drainage works at Zone B

We notify you that works have been delayed on [date] due to [brief cause of delay].

The affected works are [describe affected works], located at [specific location / area / level / chainage]. The delay started at approximately [time] and is currently [ongoing / resolved at time].

As a result, [labour crew / plant / planned activity] could not proceed as scheduled. Based on current information, this may affect [programme activity / milestone / planned sequence] and may result in time and/or cost impact.

Supporting records currently available include [photos / site diary entry / instruction / email / weather record / plant record / labour record]. Further details will be provided as the impact becomes clearer.

This notice is issued without prejudice to our rights under the contract.

For a real notice, the placeholders should be replaced with specific details. Do not send generic wording without the actual cause, affected works, timing, and evidence.

Construction delay notice example for a site access delay

Here is a more practical example.

Subject: Notice of delay : blocked access to stormwater trench works

We notify you that stormwater trench works in Zone B were delayed on 27 May 2026 due to blocked access to the work area.

The drainage crew was scheduled to commence trench preparation from 7:00am. Access to the trench area was blocked by scaffold materials and temporary fencing installed by others. The crew and 8-tonne excavator were unable to access the planned workface.

The delay started at approximately 7:15am and remained ongoing at the time of this notice. The affected works are the Zone B stormwater trench preparation and related excavation activities. This may affect the planned drainage sequence and may result in labour and plant standby costs.

Supporting records include site photos taken at 7:22am and 8:05am, a site diary entry, and the supervisor’s record of affected labour and plant. Further details will be provided once the access issue is resolved and the full impact is known.

This notice is issued without prejudice to our rights under the contract.

This example is solid because it records the cause, location, time, affected work, impacted resources, and available evidence. It does not try to argue the full claim before the facts are complete.

Common mistakes that weaken a construction delay notice

Many delay notices are weak because they are too vague, too late, or not connected to the actual site impact.

Mistake 1: Saying “we were delayed” without explaining the cause

A notice should identify the delaying event. “We were delayed” is not enough.

Better wording: Drainage works in Zone B were delayed because access to the trench area was blocked by scaffold materials and temporary fencing.

Mistake 2: Not recording the date and time

Without timing, it is harder to understand duration, sequence, labour standby, and plant downtime.

Better wording: The delay started at approximately 7:15am on 27 May 2026 and remained ongoing at 11:00am.

Mistake 3: Not identifying the affected works

A delay notice should connect the event to a planned activity.

Better wording: The affected works were the scheduled stormwater trench preparation works in Zone B.

Mistake 4: Not recording labour or plant impact

If a crew or machine is held up, record it early. Do not try to reconstruct it weeks later.

Better wording: The affected resources were a drainage crew of four workers and one 8-tonne excavator that could not access the workface.

Mistake 5: Attaching photos without context

Photos need captions or notes. Otherwise, someone reviewing the record later may not understand what the image proves.

Better wording: Photo 1 shows blocked access to Zone B at 7:22am on 27 May 2026. The drainage crew could not access the trench area.

Mistake 6: Waiting until the cost impact is fully known

The notice can be sent before final cost or programme impact is confirmed. Further details can follow once the delay is resolved and the impact is measured.

Better wording: The full impact is not yet known. Further details will be provided once the delay is resolved and the time, labour, and plant impact can be confirmed.

Construction delay notice checklist

Before sending a construction delay notice, check that it includes the core facts.

Basic notice details

• Project name
• Contract, package, or work area
• Notice date
• Person or company sending the notice
• Person or company receiving the notice

Delay details

• Date the delay started
• Time the delay started
• Whether the delay is ongoing or resolved
• Delay cause
• Specific site location
• Affected works
• Planned works that could not proceed

Impact details

• Likely programme impact
• Likely cost impact, if known
• Labour affected
• Plant or equipment affected
• Materials or deliveries affected
• Any resequencing or remobilisation issue

Evidence details

• Photos or videos
• Site diary entry
• Email, RFI, instruction, or approval record
• Weather record, if relevant
• Labour record
• Plant record
• Delivery or supplier record
• Programme extract, if available

Final review before sending

• Is the wording factual?
• Is the delay cause clear?
• Are the affected works specific?
• Is the timing clear?
• Is the evidence listed?
• Have you checked the contract notice requirements?
• Does the notice avoid unsupported claims or exaggerated language?

Use the free Construction Delay Notice Generator

Need to create a structured notice quickly? Use our free Construction Delay Notice Generator.

DelaySolve’s free Construction Delay Notice Generator helps you turn the basic facts of a site delay into a structured notice you can review, edit, and send. It is designed for practical delay records, not legal advice.

Use it when you know the basic facts of the delay but want help turning them into clearer notice wording.

You should still review the output before sending it, check the relevant contract requirements, and attach or reference the supporting evidence.

How DelaySolve helps keep a better delay record

A delay notice is only one part of the record. If the delay later needs to support an EOT, dayworks docket, variation, or cost discussion, the notice should connect to the wider site record.

DelaySolve helps subcontractors log delays, cost labour and plant impact, attach evidence, and keep a structured delay record across live projects.

That matters because the commercial issue is rarely just the wording of the notice. The stronger record is usually built from:

• the notice
• the delay timeline
• affected labour
• affected plant
• photos and videos
• instructions or correspondence
• daily notes
• cost impact
• follow-up records

Where those records connect to free tools on the site, you can also use the EOT Claim Readiness Checker, Dayworks Docket Generator, Labour Standby Cost Calculator, and Plant Downtime Cost Calculator when they fit the delay.

The practical goal is simple: make the delay easier to understand later, not harder.

For a broader view of delay documentation on site, see our guides on weather and stand-down delays and idle plant and standing labour.

If the delay may support an EOT later, read what your site diary must capture for EOT notices.

FAQs about construction delay notices

What is the purpose of a construction delay notice?

The purpose of a construction delay notice is to create a written record that a delay has occurred or is likely to occur. It should identify the cause, date, affected works, likely impact, and available evidence.

Does a delay notice need to include the full cost impact?

Not always. In many cases, the full cost impact is not known when the notice is first sent. The notice should record the known facts and state that further details will follow once the impact is confirmed.

What evidence should be attached to a delay notice?

Useful evidence can include site photos, videos, site diary entries, instructions, emails, RFIs, weather records, labour records, plant records, delivery records, and programme extracts. The best evidence is created at the time of the delay.

Can a site diary replace a delay notice?

Usually, no. A site diary is useful, but it may not satisfy contract notice requirements. A delay notice is a more direct communication that identifies the delaying event and its likely impact. Check the relevant contract before relying on a site diary alone.

Should a delay notice include programme impact?

Yes, where possible. The notice should explain what planned activity was affected and whether the delay may affect the programme, sequence, milestone, or completion date. If the full programme impact is not yet known, say that further details will follow.

Can I use a delay notice template for every delay?

A template can help with structure, but the details must be specific to the actual delay. Avoid sending generic notices that do not identify the cause, timing, affected works, and evidence.