Duty Holders made simple.
Principal Contractors
A clear and simple guide on the responsibilities of the Principal Contractor and any supporting bodies to the role
General Summary of Duty Holders
Duty holders in the UK building industry primarily refer to roles defined under the Building Regulations 2010 (as amended, particularly Part 2A introduced in 2023), influenced by the Building Safety Act 2022.
These roles promote accountability for compliance with building regulations throughout design and construction. The regime applies to most building work requiring Building Regulations approval (with some exceptions for minor works).
It closely mirrors the duty holders in the Construction (Design and Management) Regulations 2015 (CDM 2015) but focuses specifically on ensuring building work complies with the regulations (e.g., safety, structural integrity, fire safety, accessibility).
Common Responsibilities for All Duty Holders
All duty holders must:
Plan, manage, and monitor their work to ensure compliance with building regulations. Cooperate with other duty holders, share information, and communicate effectively. Ensure competence (skills, knowledge, experience, and behaviours) for themselves and anyone they appoint, and only undertake work within their competence limits.
Duty Holder Forms
As a duty holder, it is your responsibility to fill out the required documentation and forms assuming that role. Below is a link as an example copy; however, your relevant RBCA or Local Authority will provide their own copy of the document.
Principal Contractor Role
The contractor appointed by the client has overall control of the construction phase on projects with more than one contractor.
Key responsibilities (in addition to general contractor duties):
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Plan, manage, monitor, and coordinate the construction phase to ensure compliance with building regulations.
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Ensure other contractors comply with their duties.
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Liaise with the principal designer.
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Manage site safety, welfare, and coordination of contractors.
Sub-contractors
Anyone who manages or carries out building work on site.
Key responsibilities:
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Ensure building work complies with regulations.
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Plan, manage, and monitor their own work and that under their control.
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Provide workers with appropriate supervision, instructions, and information.
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Do not start work unless satisfied that the client is aware of their duties and that relevant arrangements are in place.