What You Need to Know About a Construction Phase Plan

Construction Phase Plans (CPPs), are a vital aspect of any construction project, ensuring the safety and efficiency of the work. As a legally required document, a construction phase plan not only safeguards the well-being of workers, but also serves as a crucial communication tool for all stakeholders. In this blog post, we will delve into the world of CPPs, explaining their significance, key components, development, and implementation, as well as addressing specific risks in construction projects.

Short Summary

  • A Construction Phase Plan (CPP) is a mandatory document that outlines measures to manage health and safety risks in construction projects.

  • The principal contractor is responsible for developing the CPP, with collaboration from stakeholders, while regular reviews and updates should be conducted throughout the project.

  • Specific risks such as structural hazards, hazardous substances, and public safety must also be addressed through protocols, inspections & equipment provision.

Understanding the Construction Phase Plan

A construction phase plan with a checklist of health and safety requirements

A Construction Phase Plan is a mandatory document for all construction projects, outlining specific measures to manage significant health and safety risks during the construction phase. By capturing essential health and safety arrangements, a CPP serves as a vital communication tool, promoting improved risk management and increased efficiency throughout the construction process.

It is essential that all stakeholders involved in the construction process are aware of the CPP and understand their responsibilities. The CPP should be regularly reviewed and updated to ensure that it remains relevant and effective. It should also be used.

Legal requirements

The legal basis for CPPs stems from the Construction (Design and Management) Regulations (CDM 2015), which impose a duty on all parties involved in a construction project to reduce health and safety risks throughout the project’s duration. Clients are responsible for ensuring that an adequate CPP is in place before allowing construction to commence.

The necessity of a CPP for all construction projects, regardless of size or duration, emphasizes the importance of this document in maintaining a safe work environment.

Benefits of a construction phase plan

Implementing a CPP offers numerous advantages, such as enhanced communication, improved risk management, and increased efficiency. The CPP serves as a site-based document that addresses the management of health and safety issues related to the project and outlines the arrangements for ensuring health and safety on the project.

By facilitating the comprehension of health and safety risks among all project team members, a CPP enables the creation of a secure work environment and ensures compliance with the CDM regulations.

Key Components of a Construction Phase Plan

A construction project team discussing the project details and safety plan

A comprehensive CPP should include a project overview, health and safety arrangements, and risk identification and control measures. These components work together to provide a detailed plan for managing and safeguarding health and safety on the project, taking into account any existing activities occurring on or near the site.

Project overview

A project overview serves as a foundation for the CPP, providing an overview of the scope of work, key dates and deadlines, and details of the project management team. The project overview should include crucial information such as the names and contact details of key project team members, a synopsis of the project, and any relevant deadlines for individual tasks, phases, and project completion.

This information allows for better coordination and communication among team members, ensuring that everyone is on the same page regarding project goals and expectations.

Health and safety arrangements

Health and safety arrangements are an essential component of a CPP, designed to identify and control health risks and hazards that may arise during the construction phase. These arrangements should include site rules, responsibilities, key management procedures, and health and safety procedures.

By implementing control measures such as hazardous substance control, the provision of PPE, and the installation of physical barriers, potential health and safety risks can be effectively managed.

Risk identification and control measures

An image showing a detailed construction phase plan for risk identification and control measures

Risk identification and control measures are a critical aspect of a CPP, addressing health and safety risks and outlining control measures to ensure the safety of workers and site visitors. These measures should be in line with Schedule 3 of the CDM 2015 regulations, to ensure comprehensive coverage of potential risks.

The inclusion of control measures and suggested work methods in the CPP helps address potential changes to design or significant risks, providing a solid foundation for risk management throughout the construction phase.

Developing and Implementing a Construction Phase Plan

A construction site with a principal contractor and other stakeholders collaborating on the construction phase plan

The principal contractor plays a crucial role in developing and implementing the CPP, working closely with stakeholders and updating the plan as work progresses. Ensuring that the CPP remains current and relevant throughout the construction phase is essential for effective planning, management, and monitoring of the construction work.

Principal contractor’s role

As the key figure responsible for creating the CPP before the start of construction, the principal contractor must develop, communicate, execute, and adjust the plan as necessary to ensure its adequacy for effective planning, management, and monitoring of the construction work.

The principal contractor’s role in developing the CPP depends on the number of contractors involved in the project. If there is only one contractor, they are responsible for developing the CPP, while if there are multiple contractors, the principal contractor is responsible for developing the CPP during the pre-construction phase.

Collaboration with stakeholders

Collaboration with stakeholders is essential in creating and executing a CPP, as it facilitates effective communication, information sharing, and delineation of duties and responsibilities. By harmonizing various team members, associates, and subcontractors, collaboration ensures that all parties comprehend what needs to be done and how each individual task or job impacts the remaining workflow.

Stakeholders play a crucial role in providing input and feedback, ensuring that all pertinent information is disseminated, and guaranteeing that all team members are aware of their roles and responsibilities.

Updating the plan

Revising the CPP is essential to guarantee that it remains current and applicable to the work that is about to be undertaken. This process helps to manage health and safety risks associated with the construction phase of the project and to ensure that control measures are implemented to reduce or eliminate risks.

The CPP should be regularly reviewed and updated throughout the project, taking into account any changes in plans or arrangements.

The Health and Safety File

A health and safety file with information about the construction project

The Health and Safety File is a legally required document for all construction projects, containing pertinent health and safety information to be considered during any subsequent project. This file not only serves as a legal record, but also provides advantages to both clients and end users from initial construction through use, cleaning, maintenance, alterations and refurbishment, and demolition.

When it is required

A Health and Safety File must be prepared as part of the Construction, Design and Management (CDM) Regulations 2015 during the pre-construction phase of a construction project by the principal designer. The file must be reviewed, updated, and revised to take account of the construction works and any changes that have occurred, and must contain all relevant health and safety information needed to allow future construction work, and future use of the building.

The Health and Safety File is required upon completion of the project, ensuring that all applicable health and safety information is considered during any future project.

Information to include

In addition to outlining the procedures for managing health and safety during the construction phase, the Health and Safety File should include essential information such as risk assessments, method statements, and emergency procedures. By including this information, the file serves as a comprehensive record of the measures taken to ensure health and safety throughout the construction process, providing valuable insights for future projects and ongoing building use.

Addressing Specific Risks in Construction Projects

A construction site with workers wearing protective gear and taking safety precautions

Construction projects often involve specific risks that must be addressed, including structural hazards, hazardous substances, and public safety.

By taking these risks into account and implementing appropriate measures, construction projects can be carried out safely and effectively.

Structural hazards

Structural hazards in construction projects may include hazardous substances, falls, collapses, and dangerous structures. To mitigate these risks, protective equipment, safety protocols, and regular inspections should be utilized.

Implementing these safety measures not only guarantees the safety of workers, but also helps to protect the public and the environment from potential harm.

Hazardous substances

Construction projects may contain hazardous substances that can be detrimental to people, property, or the environment. These substances may include dust, cement, lead, isocyanates, solvents, paints, cleaning substances, asbestos, and heavy metals such as mercury, lead, cadmium, and aluminum.

Exposure to these hazardous substances can lead to a range of health issues, including respiratory difficulties, skin irritation, and even cancer. Additionally, environmental damage, including water and air pollution, can be caused by these substances.

Public safety

Public safety risks in construction projects include accidents with heavy machinery, falls from heights, exposure to hazardous materials, and environmental hazards. To reduce these risks, safety protocols, safety equipment, and worker education on safety procedures should be implemented.

By taking these measures, construction projects can ensure the safety of workers, the public, and the environment.


In conclusion, Construction Phase Plans are a vital aspect of any construction project, ensuring the safety and efficiency of the work. By understanding the legal requirements, key components, and the roles of the principal contractor and stakeholders in developing and implementing a CPP, construction projects can effectively manage health and safety risks. Additionally, addressing specific risks such as structural hazards, hazardous substances, and public safety is essential for the successful completion of any construction project. By following the guidelines outlined in this blog post, construction professionals can create a secure work environment and ensure the successful completion of their projects.

Frequently Asked Questions

Are construction phase plans only required on notifiable projects?

Yes, construction phase plans are legally required on all notifiable projects according to the Construction (Design and Management) Regulations.

What is a CDM phase plan?

A construction phase plan is an essential safety document mandated by the CDM (Construction (Design and Management) Regulations). It outlines how risks should be managed during the construction process and provides guidance to keep everyone involved safe and healthy.

The CDM regulations apply to all types of construction projects, both small and large.

What are the 4 stages of construction phase?

The construction phase of a project is usually divided into four distinct stages: planning, mobilization, execution, and demobilization. In the planning stage, project scope, timeline, and budget are established.

The mobilization stage involves getting the equipment, materials, and personnel to the site. Execution is when actual construction begins, and demobilization marks the end of the construction phase with the completion of any necessary cleanup and removal of equipment and personnel from the site.

Who writes the CPP?

The principal contractor is responsible for writing the Construction Phase Plan (CPP) on construction projects involving more than one contractor. This document must provide sufficient detail to ensure that all parties involved in a construction project understand their roles and responsibilities regarding health and safety.

The CPP should include information such as the roles and responsibilities of each contractor, the health and safety management system to be used, the risk assessment process, and the emergency procedures. It should also include details.

What is a cpp?

A Construction Phase Plan (CPP) is a key document for managing and planning construction projects, required by the Construction (Design and Management) Regulations. It provides essential health and safety information for anyone involved in the project, such as contractors, designers and other stakeholders.

It outlines safe systems of work, risk assessments and control measures, making it an invaluable tool for ensuring safe working practices on the site.

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