Written by Nicola Dobbie, Founder, The Site BookLast reviewed
Construction Phase Plans
Your Construction Phase Plan — sorted
Every job needs one. Most builders hate writing them. Whether you need a CPP for an extension or a full commercial project, we do it for you. Describe the job or upload a pre-construction plan — your construction phase plan template is filled in and ready in minutes, not hours.
How it works
Upload a pre-construction plan or describe the job. Either way, your CPP is ready in minutes.
Describe the job — or upload a PCPP
Tell us what you're doing, or upload a pre-construction plan from your client. We read the whole document and pull out the details that matter — ground conditions, existing services, access restrictions.
We fill in the hazards and controls
Based on your job description, we pre-fill the risk register, emergency procedures, site rules, and welfare arrangements. For domestic jobs, the Lightweight CPP wizard asks just 4 questions.
Review and adjust
Check what was filled in. Add anything specific to your site. Nothing goes into the document without your approval.
Download and share
Professional PDF with your logo. Share a read-only link with the client or principal designer — no login needed on their end.
Your finished Construction Phase Plan
Watch a CPP come together
See how a job description — or an uploaded pre-construction plan — turns into a finished, site-specific Construction Phase Plan: site rules, risk register, emergency procedures, and a branded PDF you can hand over.
The full walkthrough video is on its way. In the meantime, see a completed document created by The Site Book.
Already got a pre-construction plan from your client?
Upload it — we read the whole thing. Ground conditions, existing services, asbestos surveys, access restrictions — it all feeds straight into your CPP so nothing gets missed. You review everything before the document is created.
What's included
- Lightweight CPP for domestic projects — 4 questions, 1–2 page output
- Full CPP for commercial projects with comprehensive wizard
- Pre-filled from your project description and site details
- Risk register with site-specific hazards and control measures
- Emergency procedures, welfare arrangements, and site rules
- Covers all CDM 2015 requirements for notifiable and non-notifiable projects
- Include site photos directly in the document
- Company-branded PDF — share with clients or principal designers
Enter your site details once — they flow into every document
Domestic job? Lightweight CPP — done in 5 minutes
If you're the only contractor on a domestic project, you don't need a 20-page document. Our Lightweight CPP wizard asks 4 plain-English questions and creates a professional 1–2 page plan that covers everything CDM 2015 requires.
Kitchen extension, loft conversion, bathroom refurbishment — 4 questions, done.
More than a one-off template
Free CPP templates and basic generators do exist — the HSE publishes a Construction Phase Plan template for domestic clients, and CITB offers CDM-related tools. They're a reasonable place to start. The catch is that a template gives you one static document. The Site Book gives you a connected workflow that keeps working long after the CPP is written.
One project, every document
Your CPP, RAMS, COSHH assessments, site inductions, and worker sign-off all build from the same project details — enter the site once and it flows through everything, instead of re-keying it into a new template each time.
Bring your client's plan in
Already got a pre-construction plan from a principal designer? Upload it and we pull the details in — ground conditions, existing services, access restrictions — so your CPP starts from what's already known.
Keep managing the job after the CPP
A template hands you a file and stops there. The Site Book keeps the project live: revise the plan as the job changes, share a read-only link with the client or principal designer, and keep the whole pack in one audit-ready place.
Free Starter vs Pro
Your first project is free — no card needed. Pro removes the limits when you're ready to run every job through The Site Book.
Starter
£0
Get a feel for it on a real job, free.
- First project free
- RAMS generator
- CPP generator
- Site inductions
- PDF download
- Worker sign-off
Pro
£30/mo
billed yearly (£360/yr) · £39/mo monthly
Save £108/year on annual
Everything in Starter, plus:
- Unlimited projects
- COSHH library
- Toolbox talks
- Google Drive, Xero and Zapier integrations
- Save £108/yr vs monthly
Cancel online anytime. Export everything if you leave.
What's included at each tier
Starter
£0- Risk Assessments (RAMS)
- Construction Phase Plans (CPP)
- Site inductions
- Worker document signing (no per-signature charge)
Pro
£39/mo or £360/yr- Risk Assessments (RAMS)
- Construction Phase Plans (CPP)
- Site inductions
- COSHH assessments (standalone doc, SDS upload, site-specific register)
- Worker cert tracking and expiry alerts
- Right-to-work evidence records
- Subcontractor tracking
- Toolbox talks
- Worker document signing (no per-signature charge)
- Integrations (Drive, Xero, Zapier)
Business
£199/mo- Risk Assessments (RAMS)
- Construction Phase Plans (CPP)
- Site inductions
- COSHH assessments (standalone doc, SDS upload, site-specific register)
- Worker cert tracking and expiry alerts
- Right-to-work evidence records
- Subcontractor tracking
- Toolbox talks
- Worker document signing (no per-signature charge)
- Integrations (Drive, Xero, Zapier)
- Up to 10 internal team logins
- Site Supervisor: a field-only login for whoever runs the site
- Up to 50 active site portal users
- Site attendance check-in/check-out
- Multilingual worker inductions (9 languages)
- Optional 4-digit PIN for shared-link document sign-off
- Slack Site Ready readiness checks
Site Control
£675/site/mo- Risk Assessments (RAMS)
- Construction Phase Plans (CPP)
- Site inductions
- COSHH assessments (standalone doc, SDS upload, site-specific register)
- Worker cert tracking and expiry alerts
- Right-to-work evidence records
- Subcontractor tracking
- Toolbox talks
- Worker document signing (no per-signature charge)
- Integrations (Drive, Xero, Zapier)
- Up to 10 internal team logins
- Site Supervisor: a field-only login for whoever runs the site
- Up to 50 active site portal users
- Site attendance check-in/check-out
- Multilingual worker inductions (9 languages)
- Optional 4-digit PIN for shared-link document sign-off
- Slack Site Ready readiness checks
- Permanent entrance QR: guest sign-in and contractor self-join
- CSCS credential capture, review and expiry alerts
- Digital induction gating before check-in
- Live people-on-site, attendance and audit-grade exports
- Single sign-on (SSO) with Okta or Microsoft Entra
- Public REST API with scoped account keys
- Signed real-time webhooks into your own systems
Running live sites with subcontractors? Site Control is the per-site enterprise tier above Business — entrance QR sign-in, CSCS checks, induction gating, live attendance and audit-grade exports. From £675/site per month, plus £5,000 setup.
Common questions about Construction Phase Plans
Do I need a CPP for a domestic extension?
Yes. Under CDM 2015, every construction project needs a Construction Phase Plan. That includes domestic extensions, loft conversions, and kitchen refurbishment work, so this is a legal requirement rather than an optional extra. The good news is that for domestic projects where you're the only contractor, you don't need a 20-page document. Our Lightweight CPP wizard creates a professional 1-2 page plan in under 5 minutes.
What's the difference between a CPP and RAMS?
A CPP (Construction Phase Plan) is the overall safety plan for the whole project — it covers site rules, emergency procedures, welfare, management arrangements, and a risk register. A RAMS (Risk Assessment and Method Statement) covers a specific piece of work within the project — the hazards and step-by-step method for that task. You need both. The Site Book creates them both from the same project description.
Already got a pre-construction plan from my client?
Upload it. We read the whole document — whether it's a PCPP from a principal designer, an architect's site report, or a client brief — and extract ground conditions, existing services, asbestos surveys, access restrictions, and more. Everything feeds straight into your CPP so nothing gets missed.
What if my project is notifiable?
The Site Book checks your project automatically based on duration and headcount. If your job lasts more than 30 working days with more than 20 workers, or exceeds 500 person-days, we flag it and your F10 HSE notification is pre-filled from your project data. Review it and submit — no forms, no guesswork.
Can the principal designer see my CPP?
Yes. You can share a read-only link to your full document pack — CPP, RAMS, inductions, everything — with one click. No login required on their end. Reset the link at any time.
Do I need a CPP for a kitchen extension?
Yes. CDM 2015 requires a Construction Phase Plan for every construction project, including kitchen extensions. As the only contractor on a domestic job, you need a plan that covers site rules, emergency procedures, and key hazards. The good news: our Lightweight CPP wizard creates a professional 1-2 page plan in under 5 minutes — designed specifically for domestic extensions.
Do I need a CPP for a loft conversion?
Yes. Loft conversions involve working at height, structural alterations, and often electrical and plumbing work — all of which need documenting in a Construction Phase Plan. CDM 2015 applies to all construction work, domestic or commercial. The Site Book creates a CPP tailored to loft conversions with the right hazards pre-filled.
Do I need a CPP for a bathroom?
Yes. Even a straightforward bathroom renovation involves risks — electrical work in wet environments, plumbing, tiling, and potentially asbestos in older properties. CDM 2015 requires a Construction Phase Plan for all construction projects. Our Lightweight CPP covers bathroom refurbishments in 4 simple questions.
What's the difference between a CPP and RAMS?
A CPP covers the whole project — site rules, emergency procedures, welfare, management arrangements, and an overview of risks across all work activities. A RAMS covers a specific piece of work within the project — the detailed hazards and step-by-step method for that task. You need both. The CPP is your project safety plan; the RAMS is your task-level detail. The Site Book creates both from the same project description.
CPP for domestic extension
On domestic projects with a single contractor, CDM 2015 still requires a Construction Phase Plan — but it doesn't have to be a 20-page document. The Site Book's Lightweight CPP wizard is designed for exactly this: answer 4 questions about your job and get a professional 1-2 page plan that covers everything the regulations require. Works for rear extensions, side returns, single and double storey builds.
Related guides
Compare RAMS and CPP Tools
Check which tools cover RAMS, CPP, COSHH, inductions, and site records together.
Software for Sole Traders
A practical roundup for small builders who need paperwork without enterprise setup.
What is a CPP?
Construction Phase Plans explained in plain English.
After the first draft
RAMS and CPP from one project record — then review, issue, sign-off and audit.
CPP Example
A worked example of a Construction Phase Plan.
Do I Need a CPP for a Domestic Extension?
When a CPP is required for domestic building work.
Principal Contractor Duties
Your responsibilities as principal contractor under CDM 2015.
Where it helps and where it doesn't
Pros
- Full Construction Phase Plans, not just RAMS bolt-ons
- CDM 2015 structure pre-filled from your job brief
- Version history — download a fresh PDF any time
- Shareable review link for principal contractors
Cons
- UK CDM 2015 only — international H&S frameworks not covered
- No BIM / 3D model integration
- Phased-handover CPP edits still need a human review step
Why The Site Book
- UK construction compliance tool that ships RAMS + CPP + COSHH + inductions (readable and acknowledgeable in 9 worker languages on Business, with the language audit-recorded) + worker sign-off, including optional 4-digit shared-link PIN evidence on Business, plus site attendance, portal users, site files, document reviews, subcontractor evidence and inspections/actions.
- Generate a site-specific RAMS first draft from a natural-language brief in under five minutes, ready for competent-person review - not a template library you hand-fill.
- Controlled document workflow without an enterprise contract: version history and a recorded issue confirmation before a document is shared with a client or downloaded in the app on every plan, re-sign on revision with superseded signatures preserved plus PCPP import, cert tracking and document checking from the £39/month Pro plan - and on Business, optional named-approver routing (a designated approver accepts or rejects each version, with recorded reasons, before it can be issued) plus client approve/reject/request-changes via share links.
- Transparent pricing: Starter £0, Pro £39/month or £360/year, Business £199/month with 10 management logins and 50 active site portal users. Worker document signing has no per-signature charge; project workers count as active portal users while assigned.
- Build RAMS for any trade - add your own work types and method statements alongside the built-in library, reusable across projects, including a ready-made Commercial Solar PV group. Save a finished job as a reusable project template, or clone it, so the next job of the same shape starts from your own setup.
- COSHH goes deep: a standalone COSHH assessment document, upload-a-Safety-Data-Sheet extraction, a site-specific substance register and an expert-reviewed library - plus per-worker RAMS sign-off and a one-click Audit Pack covering documents, sign-offs, worker evidence, attendance, incidents, COSHH, permits and up to the latest 500 live Site Diary entries.
“This tool is great for ensuring I don't miss anything when documenting the risk assessments and plans for my projects. I can just enter the information and it does all of the work for me. It creates Risk Assessments, Construction Phase Plans, COSHH Assessments, Site Induction papers and Method statements, all from the information I already have. Highly recommended.”
Andrew Taylor
Trustpilot review
Your first CPP — done today
No card needed. No catch. Create your first project and download a professional Construction Phase Plan in minutes.
Compared against the competition
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Construction Compliance Software UK: 10 Tools From £0
For builder-run UK firms from sole traders to teams of around 50, The Site Book is the best construction compliance software when the job is CDM paperwork plus practical site H&S operations: RAMS, CPP, COSHH, inductions, toolbox talks, worker sign-off, site attendance, site files, document reviews, subcontractor evidence and inspections/actions.
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Best Compliance Software for Domestic Builders (UK 2026)
Domestic construction work sits under CDM 2015 §14(1), which puts the duty-holder roles on the contractor rather than the homeowner client - and that changes what compliance software actually needs to do.
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