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Getting the Most Out of a Construction Phase Plan

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In construction planning in the United Kingdom, creating a construction phase plan (CPP) is essential. It’s not just another task on your to-do list but a crucial part of ensuring safety and managing risks on any construction project. Let’s dive into what a CPP is, why it’s important, and how to put it into practice effectively.

What is a Construction Phase Plan (CPP)?

A Construction Phase Plan, or CPP, is a detailed health and safety plan for the active phase of any construction project. It’s required by law in the UK under the Construction (Design and Management) Regulations 2015 (CDM 2015). The CPP identifies risks, develops strategies to manage these risks, and ensures that construction projects of all sizes are carried out safely.

Do We Need a Construction Phase Plan?

Yes, every construction project in the UK, no matter the size or duration, must have a CPP. Whether you are working on a small renovation or a large building project, you need a construction phase plan for that specific site. This legal requirement helps ensure that all potential hazards are addressed before any work begins.

Roles, Duties, and Responsibilities Within a CPP

A key aspect of a CPP is that everyone involved in the project has a role to play in ensuring safety:

  • Domestic Clients: Usually pass their CPP responsibilities to their appointed contractor.
  • Commercial Clients: Must provide adequate information to contractors and ensure they understand the project’s safety requirements.
  • Designers: Have to design projects considering safety for the construction crews.
  • Principal Contractors: Are responsible for the overall safety management on site.
  • Subcontractors and Workers: Must follow safety guidelines and report any issues.

The goal is to ensure everyone on the project is committed to making sure all workers go home safely every day.

Putting the CPP Into Practice On-Site

One common issue is the “set it and forget it” attitude. Even the best plans can fail if not properly implemented and monitored. Here are some tips to ensure your CPP works effectively:

Constant Monitoring

Regular updates and revisions are necessary to adapt to changes on-site. Use tools that require daily updates and corresponding actions from the office team to maintain accountability.

Appoint Responsible People

Assign specific individuals on-site to enforce safety rules and take disciplinary action when necessary.

Educate Your Team

Make sure everyone understands the importance of health and safety and their role in maintaining it.


Use a Common Data Environment (CDE)

A CDE allows you to share updated construction documents and drawings with on-site management, ensuring everyone has the latest information.

Create a Clear Audit Trail

Maintain records of all important health and safety reports and documents to track compliance and changes.

Manage Changes

Monitor and adjust your CPP as needed to accommodate changes in specifications, materials, or scope of work.


A construction phase plan is not just a formality but a vital part of ensuring safety on construction sites. By involving everyone in the project, constantly monitoring and updating the plan, and using the right tools, you can turn a well-drafted CPP into real, on-site safety practices. Taking the time to properly implement a CPP can prevent accidents and save lives, making it a crucial element of any construction project.


1. What is a Construction Phase Plan (CPP)? A Construction Phase Plan (CPP) is a detailed health and safety plan required for all construction projects in the UK, ensuring risks are managed and safety is prioritized.

2. Who needs a Construction Phase Plan? Every construction project in the UK, regardless of size or duration, requires a Construction Phase Plan to comply with legal regulations and ensure site safety.

3. How do I implement a Construction Phase Plan on-site? To implement a CPP effectively, constantly monitor and update the plan, appoint responsible people, educate your team, use a CDE, create an audit trail, and manage changes as needed.

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