Why Every UK Construction Site Needs a Site Diary

A site diary is not a nice-to-have. Under the Construction (Design and Management) Regulations 2015, principal contractors must maintain adequate records of site activities. When a dispute lands, when the HSE knocks on your cabin door, or when an insurance claim drags on for months, your site diary is the document that either protects you or leaves you exposed.

The problem is that most site managers treat the diary as an afterthought. A few scribbled lines at the end of a 12-hour shift, written in handwriting that even you cannot read the following week. That is not a record. That is a liability.

Below is a complete site diary template that covers everything required for UK construction compliance. You can print it, photocopy it, or use it as a digital document. After that, we will show you a faster way to keep site records.

Free Construction Site Diary Template

Daily Site Diary

DAILY SITE DIARY

PROJECT NAME: ____________________________________
PROJECT REF: _____________________________________
SITE ADDRESS: ____________________________________
DATE: ___/___/______       DAY:  Mon / Tue / Wed / Thu / Fri / Sat / Sun

COMPLETED BY: ____________________________________
ROLE: ____________________________________________

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1. WEATHER CONDITIONS

Morning:   Clear / Overcast / Rain / Heavy Rain / Snow / Frost / Wind
Afternoon: Clear / Overcast / Rain / Heavy Rain / Snow / Frost / Wind
Temperature (approx): ______°C
Weather impact on work:  None / Minor delays / Significant delays / Work stopped
Notes: ___________________________________________

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2. WORKFORCE ON SITE

Own employees:          ______ persons
Subcontractor 1: ________________  Persons: ______
Subcontractor 2: ________________  Persons: ______
Subcontractor 3: ________________  Persons: ______
Subcontractor 4: ________________  Persons: ______
Total workforce on site: ______

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3. PLANT AND EQUIPMENT ON SITE

Item 1: _________________________  Status: In use / Idle / Arrived / Removed
Item 2: _________________________  Status: In use / Idle / Arrived / Removed
Item 3: _________________________  Status: In use / Idle / Arrived / Removed

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4. DELIVERIES

Time: ______  Item: _________________________  Supplier: ________________
Time: ______  Item: _________________________  Supplier: ________________
Time: ______  Item: _________________________  Supplier: ________________

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5. WORK COMPLETED TODAY

Area / Zone: ___________________
Description: ___________________________________________
______________________________________________________
______________________________________________________

Area / Zone: ___________________
Description: ___________________________________________
______________________________________________________
______________________________________________________

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6. HEALTH AND SAFETY

Site induction given:       Yes / No / N/A    Persons: ______
Toolbox talk delivered:     Yes / No           Topic: _______________
Near miss reported:         Yes / No           Details: ______________
Accident / Incident:        Yes / No           Details: ______________
RIDDOR reportable:          Yes / No
PPE compliance:             Good / Fair / Poor
Housekeeping:               Good / Fair / Poor

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7. VISITORS

Time: ______  Name: _________________________  Organisation: ___________
Time: ______  Name: _________________________  Organisation: ___________
Purpose: ___________________________________________

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8. INSTRUCTIONS AND VARIATIONS

Instruction received from: _____________________________
Details: ___________________________________________
______________________________________________________
Verbal / Written    Reference: _________________________

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9. DELAYS AND DISRUPTIONS

Cause: ___________________________________________
Duration: ______  hours
Impact: ___________________________________________
Responsible party: _________________________________

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10. PHOTOGRAPHS TAKEN

Photo 1: Description ________________________________
Photo 2: Description ________________________________
Photo 3: Description ________________________________

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11. GENERAL NOTES

______________________________________________________
______________________________________________________
______________________________________________________
______________________________________________________

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SIGNED: ________________________  DATE: ___/___/______
REVIEWED BY: ___________________  DATE: ___/___/______
    

What Each Section Covers and Why It Matters

Weather Conditions

Weather affects productivity, safety, and material performance. Recording it daily creates a factual record when disputes arise about delays. If a client claims you were slow, your diary shows three weeks of heavy rain that stopped groundworks. Without weather records, it is your word against theirs.

Workforce Numbers

Knowing who was on site and when is critical for compliance, cost tracking, and dispute resolution. Under CDM 2015, the principal contractor must be able to account for everyone on site. Record each subcontractor separately with headcount.

Plant and Equipment

Track what plant is on site, whether it is in use, and when it arrives or leaves. This is essential for hire cost verification. If a plant hire company charges you for a week but the digger was only on site for three days, your diary is the proof.

Deliveries

Record the time, item, and supplier for every delivery. This helps with material tracking, waste calculations, and verifying supplier invoices. It also creates a timeline if materials turn out to be defective later.

Work Completed

This is the core of the diary. Describe what work was done, where on site, and by whom. Be specific. "Brickwork continued" is useless. "External blockwork to Plot 3 rear elevation completed to first floor level by ABC Brickwork" is a record.

Health and Safety

CDM 2015 places specific duties on the principal contractor regarding health and safety management. Recording inductions, toolbox talks, near misses, incidents, and general site conditions creates an audit trail that proves you take your duties seriously. If the HSE investigates, this section is the first thing they ask for.

Go Digital and Save 30 Minutes Every Day

FORGE Command replaces the paper site diary with a purpose-built app for UK construction. Timestamped entries, photo attachments, PDF exports, and automatic backups. One-time purchase, no monthly fees.

Download FORGE Command

£39.99 one-time purchase on the App Store

Visitors

Record everyone who visits site, including the time, their name, organisation, and purpose. This covers building control inspectors, architects, client representatives, utility companies, and anyone else who sets foot on your site. It is both a safety record and a communication log.

Instructions and Variations

When the architect issues a verbal instruction or the client asks for a change, record it immediately. Include who gave the instruction, what was requested, and whether it was verbal or written. Variations are the number one cause of construction disputes. A diary entry made on the day carries far more weight than a recollection months later.

Delays and Disruptions

Document any delays as they happen. Note the cause, duration, impact, and who is responsible. This section is essential for extension of time claims and loss and expense claims. Without contemporaneous records, your claim will fail.

Photographs

Photos taken on the day, with descriptions, transform your diary from a written record into visual evidence. Photograph progress, defects, deliveries, weather conditions, and anything unusual. Paper diaries cannot include photos, which is one of the biggest reasons to go digital.

Paper vs Digital: What UK Builders Should Know

FeaturePaper DiaryDigital Diary
Time to complete daily25 to 40 minutesUnder 10 minutes
Photo attachmentsNot possibleUnlimited, timestamped
Searchable recordsNo, must read through manuallyYes, search by date, keyword, or project
Backup and securityOne copy, can be lost or damagedCloud backup, always accessible
PDF export for clientsMust photocopy or retypeOne-tap export
LegibilityVaries (often poor at end of shift)Always clear and formatted
Timestamp verificationOnly if written honestlyAutomatic, verifiable
Cost£5 to £15 per book, ongoingOne-time app purchase

How to Use This Template

If you want to use the paper version, copy the template into a Word document or Google Doc. Print multiple copies and keep them in a ring binder in the site cabin. Complete one page per day, every day that work takes place on site. Store completed diaries safely for the duration of the project and for at least six years afterwards (the limitation period for construction claims in England and Wales).

Label each diary with the project name and date range on the spine. Keep a separate diary for each project. Never use one diary across multiple sites.

Common Mistakes That Weaken Your Records

Filling It In Days Later

A diary entry written three days after the event is worth far less than one written on the day. Courts and adjudicators give much greater weight to contemporaneous records. If you must catch up, note clearly that the entry was written retrospectively.

Being Too Vague

"Work continued as normal" is not a diary entry. It tells nobody anything. Record specific activities, specific locations on site, and specific subcontractors. Future you, reading this entry during a dispute, needs to know exactly what happened.

Skipping Quiet Days

If nothing notable happened, say so. "Routine brickwork continued, no issues, no visitors, weather dry and mild" is a valid entry. A blank page raises questions about whether the diary was being maintained properly.

Not Recording Verbal Instructions

This is the most expensive mistake in construction. A client tells you to change the window positions. You do it. Six weeks later they deny ever saying it and refuse to pay for the variation. Without a diary entry, you have no evidence. Always record verbal instructions immediately, including who said what and when.

Ignoring Near Misses

Near misses are free warnings. Recording them shows a proactive safety culture. It also creates a paper trail that protects you if the HSE investigates after a subsequent incident. If you can show you were identifying and addressing risks, it demonstrates competence.

The Digital Alternative

Paper diaries have served the UK construction industry for decades, but they have clear limitations. They cannot include photographs. They are not searchable. They can be lost, damaged, or destroyed in a site fire or flood. And they take significantly longer to complete than a digital entry.

FORGE Command was built specifically for UK site management. The daily diary feature includes every section from the template above, with the ability to attach timestamped photographs, dictate entries using voice-to-text, and export professional PDF reports for clients, consultants, or legal proceedings.

Every entry is automatically timestamped and backed up. You can access your records from any device. And when someone asks for the site diary from three months ago, you produce it in seconds instead of digging through filing cabinets.

The app is a one-time purchase of £39.99 from the App Store. No monthly subscriptions. No per-user fees. No ongoing costs.

Keeping Your Records Safe

However you keep your site diary, protect the records. For paper diaries, keep originals in a secure location off site once the project is complete. For digital diaries, ensure your data is backed up to the cloud and accessible from more than one device.

Construction claims can be brought up to six years after completion (twelve years for deeds). Your site diary from 2026 might be needed in 2032. Plan your storage accordingly.

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