What Is a Construction Phase Health and Safety Plan? Free Guide & Template

Key Takeaways

1. A Construction Phase Health and Safety Plan (CPHSP) is mandatory under UK law for the vast majority of construction projects and is crucial to ensure safety and legal compliance from the outset.
2. If your Construction Phase Health and Safety Plan is incomplete or inaccurate, your business risks site closures, government fines, or even criminal prosecution for breaches of CDM Regulations 2015.
3. Every CPHSP must clearly identify risks, outline site rules, specify welfare facilities, and detail emergency procedures to meet inspection standards.
4. Sole traders and small businesses are equally obliged to prepare a construction phase plan. Using a properly structured, UK-specific template greatly simplifies this responsibility.
5. Regularly reviewing your CPHSP—especially when risks or site conditions change—is essential to remaining compliant and safeguarding everyone on site.
6. Missing legal components, such as thorough risk assessments or well-documented site inductions, remains one of the most common and costly errors found in construction safety plans.
7. Go-Legal AI is a trusted UK legal tech platform, with over 170 five-star reviews and an Excellent rating on Trustpilot.
8. Go-Legal AI delivers proven value: rated Excellent on Trustpilot by 170+ satisfied users.

What Is a Construction Phase Health and Safety Plan? (Plain English Guide)

Many site managers, contractors, and business owners in the UK wonder what is legally required to keep a building site compliant and safe. The Construction Phase Health and Safety Plan (CPHSP) is a legally required document on nearly all construction sites—large or small. Failing to get your CPHSP right can put your whole project at risk, leading to costly site shutdowns, fines, or even prosecution for breaching the CDM Regulations 2015.

This guide walks you through what a Construction Phase Health and Safety Plan is, who is responsible for drafting it (including sole traders), and why every UK project needs one tailored to its specific risks. You’ll discover step-by-step how to create a plan that passes inspection, the legal essentials it must include, and why using a UK-specific template could save your project from common and costly mistakes.

We developed Go-Legal AI to provide practical, expertly structured templates and AI-powered planning tools that make compliance stress-free. You can start today with our free CPHSP template and take the guesswork out of construction safety compliance.

What Is a Construction Phase Health and Safety Plan and Why Is It Required?

A Construction Phase Health and Safety Plan (CPHSP) is a legally required site-specific document that every construction project in England and Wales must have in place before work begins. It details how health and safety risks will be managed throughout the project’s build phase.

This requirement derives from the Construction (Design and Management) Regulations 2015 (CDM 2015), which apply to all types of construction work—from minor bathroom refurbishments to major property developments. The CPHSP demonstrates that thought and practical steps have been taken to manage the real dangers of construction work before any tools or equipment are deployed.

If a CPHSP is missing or inadequate, the Health & Safety Executive (HSE) can issue enforcement notices, halt work, or prosecute businesses and individuals.

Who Must Prepare a Construction Phase Health and Safety Plan in the UK?

Under CDM 2015, the principal contractor—the party overseeing the site’s day-to-day work—is always responsible for preparing, maintaining, and updating the Construction Phase Health and Safety Plan. On multi-contractor projects, the principal contractor is usually appointed by the client. If there is only one contractor working (such as a sole trader or small business), that person or company assumes all principal contractor duties.

• Principal Contractor: Must prepare, implement, and update the CPHSP.
• Single-Contractor Projects: The contracting business or sole trader is legally obliged to prepare the CPHSP.
• Client: Must make sure a suitable plan is in place before work starts and that the principal contractor is competent.
• Subcontractors: Must read and comply with the plan, highlighting additional site-specific risks as they arise.

Key stakeholders should agree to and sign off on the plan both prior to starting work and whenever it is significantly updated.

What Are the Legal Duties Under CDM Regulations 2015?

CDM 2015 places clear obligations on contractors, clients, and anyone in control of a building site:

• Ensure a project-specific CPHSP is in place before construction starts.
• Make the plan relevant to the particular risks of the site and type of work (such as working at height, hazardous substances, or vehicle movements).
• Keep the plan updated to reflect changing methods, new contractors, or evolving hazards.
• Communicate the plan’s contents to everyone working on site—including subcontractors and short-term team members.
• Periodically review and update the CPHSP after any incident, near-miss, or substantial change on site.
• Guarantee that the welfare facilities (toilets, washbasins, rest areas) meet the statutory minimum standards.

What Should Be Included in a Construction Phase Health and Safety Plan?

Every valid CPHSP must be detailed and always specific to the site and project. The level of detail should match the complexity and risk of the job:

• Small/domestic jobs: List essential site rules, welfare and fire arrangements, risk controls for trades, site contact details, access points, and emergency procedures.
• Larger/commercial or notifiable projects: Detail a wider range of hazards, comprehensive risk assessments and method statements (RAMS), induction schedules, controls for public areas, and complex rescue or emergency plans.

A plan must always refer to the real project address and parties involved.

Essential Checklist for a Legally Compliant CPHSP

The HSE expects all construction phase plans in England and Wales to include:

• Project name, description, and exact site location.
• Contact details and responsibilities of all key parties (principal contractor, client, subcontractors).
• Up-to-date risk assessments and method statements tailored to significant hazards.
• Arrangements for managing risks on site (working at height, hazardous materials, plant/equipment).
• Clear site induction procedures: everyone new to the site must be briefed.
• Site rules for workers and visitors, including PPE and behaviour expectations.
• Details and locations for toilets, washing, and shelter facilities for workers.
• Comprehensive emergency procedures (fire evacuation, first aid, reporting incidents).
• Mechanisms for updating and reviewing the CPHSP as the project continues.

Key Clauses to Include in Your Construction Phase Health and Safety Plan

How to Create a Construction Phase Health and Safety Plan: Step-by-Step

Creating a legally compliant CPHSP doesn’t need to be complicated. Build your plan in these stages:

1. Open a trusted template: Use a structure written for UK law—our templates are fully up-to-date.
2. Describe your project: Enter full details including site address, client, key contacts, and expected timeline.
3. Name responsible people: Identify who will act as principal contractor, and list key duty holders.
4. Assess risks specific to your site: Add a risk assessment and method statement for each trade, activity or hazard (e.g. major plant use, work at height, asbestos).
5. Set out arrangements for induction, site rules, and welfare: Include how you will check new workers and visitors, outline rules on entry, PPE, and use of site facilities.
6. List emergency procedures and contacts: Record who is in charge of fire, evacuation, first aid, and how incidents should be reported.
7. Schedule regular reviews and updates: Set reminders to check the plan whenever new risks arise or contractors join.

Construction Phase Plan Example: Tailoring Your CPHSP for Project-Specific Risks

Genuine compliance means your CPHSP must reflect your actual site—its hazards, activities, and workforce.

Customised, regularly updated plans protect your workforce and demonstrate genuine compliance to regulators, clients, and insurers.

Common Mistakes When Creating a Construction Phase Health and Safety Plan (And How to Avoid Them)

Many projects risk penalties and delays due to avoidable planning errors:

• Using generic plans: Failure to adapt templates can result in rejection by the HSE. Always include the real site address, the right parties, and current risks.
• Ignoring risk-specific controls: Omitting tailored arrangements for high risks (e.g. working at height, hazardous materials) can bring stop notices or accidents.
• Neglecting updates: Unchanged plans as site conditions or teams change breach CDM 2015 and may not protect workers.
• Skipping welfare or emergency sections: Every CPHSP must detail toilets, washing, fire, and first aid—no exceptions.
• Weak site inductions: All new workers and visitors must complete a documented induction. Keep records ready for inspection.

Regular reviews and using our automated reminders help you keep plans up to date and your site legally protected.

Construction Phase Plan vs. Statement of Work (SOW): What’s the Difference and When Is Each Needed?

Both documents are crucial to a proper construction project, but they serve different purposes:

• Construction Phase Plan: Legally required under CDM 2015. Focuses solely on health and safety, including site risks, welfare, emergency, and induction arrangements.
• Statement of Work (SOW): A commercial agreement; sets out the scope, deliverables, timelines, payment, and standards. It governs the ‘what’ and ‘how much’ of the job.

How Go-Legal AI Simplifies Construction Phase Health and Safety Plans

Go-Legal AI takes the stress out of legal compliance for CPHSPs, offering:

• AI-guided templates that prompt for project-specific risks, duty holders, and CDM requirements.
• Interactive checklists designed for both small domestic projects and large commercial sites, ensuring nothing is overlooked.
• Step-by-step builders that automatically highlight missing legal essentials and tailor every clause to your real-world project.
• Secure cloud storage and real-time updates, so you can share or update your plans instantly as your site or risks change.

Using our smart tools, even first-time builders or sole traders can confidently create robust, inspector-ready CPHSPs in minutes—no jargon, no guesswork.

Start building with our AI-powered template builder to instantly create, adapt, and manage your construction phase plans, from project start to sign-off.

Frequently Asked Questions

Who is responsible for the Construction Phase Health and Safety Plan on site?

The principal contractor named for the project is responsible. On small jobs, this is generally the sole trader or main contractor.

Can a sole trader or small business create their own CPHSP?

Yes, all businesses—including sole traders—are required to prepare a plan and can use Go-Legal AI’s templates to get compliant fast.

What are the legal requirements for a Construction Phase Plan under CDM 2015?

Regulation 12 requires each CPHSP to include project risk assessments, welfare arrangements, induction procedures, emergency plans, and evidence of regular review.

How often should the Construction Phase Health and Safety Plan be updated?

Regularly—whenever the site or risks change, or before each new phase or team starts work.

Do I need a Construction Phase Plan for a domestic project?

Yes—every site needs one, not just commercial jobs. The complexity should match the scale and nature of the risks.

What happens if you don’t have a Construction Phase Health and Safety Plan?

You risk HSE spot checks, site shutdowns, fines, and even prosecution—all of which can halt your project and damage your reputation.

Can I use a free template for my Construction Phase Plan?

Absolutely, so long as you adapt it to match your real site, project, and risks. Start with our editable templates to save time and avoid errors.

What’s the difference between a generic safety plan and a project-specific CPHSP?

A generic plan often fails inspections and legal checks. Project-specific plans are tailored, up to date, and contain only relevant, current information.

Are there penalties for using an incomplete health and safety plan on site?

Yes. Enforcement action may range from improvement notices and project delays to significant fines.

How do inspectors assess a Construction Phase Health and Safety Plan during site visits?

Inspectors check whether the plan is up to date, site-specific, addresses all legal duties, and is actively used and understood by everyone on site.

Instantly Build Your Compliant Construction Phase Health and Safety Plan

Having a comprehensive, up-to-date Construction Phase Health and Safety Plan is a legal non-negotiable—and critical for your team’s safety, the integrity of your business, and the trust of your clients. Skipping or short-cutting this document puts you at risk of project shutdowns and damaging enforcement action, and can jeopardise your reputation and bottom line.

With legal responsibility for compliance falling squarely on the principal contractor—even in small or one-person operations—there’s no room for error. Using the right tools, you can deliver project-specific, regulator-proof plans in minutes.

With our step-by-step builder, templates, and instant review features, you can produce your site’s Construction Phase Health and Safety Plan with total confidence and peace of mind. Don’t risk fines or enforcement—get started today and protect your business, your site, and everyone working for you.