An In-Depth Guide: New Building Control Dutyholder Regulations (Effective October 1, 2023)
- luke9973
- Feb 4
- 3 min read

Despite now having been implemented since October 2023 and now into it's third year since the regulations have changed, particularly in the residential sector, we find that clients, and in perticular homeowners are still unaware of their requirements within the new duty holder requirements and are often coming up short when their projects are on site and they have no body to represent them in this capacity. Below are some key details we feel will help you understand more clearly where your role lies.
The Building Safety Act 2022 has ushered in one of the most significant overhauls of building safety regulations in recent memory. With new dutyholder roles coming into force from October 1, 2023, the entire construction sector—from clients to contractors—faces new legal obligations and a renewed focus on safety and accountability.
Why Were the Regulations Introduced?
Following the Grenfell Tower tragedy and subsequent reviews, it became clear that clearer accountability and competence were needed at every stage of a building’s lifecycle. The new regulations aim to:
Prevent safety risks from being overlooked
Ensure everyone knows their responsibilities
Improve the quality of design, construction, and maintenance
Who Are the Dutyholders?
The regulations define five core dutyholder roles:
Client: The individual or organisation commissioning the work. Responsible for making suitable arrangements for planning, managing, and monitoring the project.
Principal Designer: Appointed when more than one contractor is involved. Responsible for planning, managing, monitoring, and coordinating the design phase, ensuring risks are managed.
Principal Contractor: Oversees the construction phase, ensuring safety and compliance.
Designer: Anyone preparing or modifying a design, including architectural and engineering consultants.
Contractor: Anyone who manages or carries out building work, including site managers and specialist trades.
What Are Their Legal Duties?
1. Competence
All dutyholders must have—and be able to demonstrate—sufficient skills, knowledge, experience, and behaviours (SKEB). This includes:
Professional qualifications (e.g., ARB accreditation for architects)
Ongoing training and CPD
Demonstrable track record
2. Cooperation & Communication
Dutyholders must cooperate with one another, share relevant information, and coordinate activities to ensure safety is maintained throughout the project. This is especially important where multiple parties are involved, such as design-and-build projects.
3. Planning, Managing, and Monitoring
Clients must ensure suitable arrangements for managing the project, including allocating adequate time and resources.
Principal Designers must plan and monitor the design work, considering health and safety at every stage.
Principal Contractors must ensure construction work is carried out safely and to standard.
4. Keeping Records
A robust audit trail is now a legal requirement. Dutyholders must record:
Decisions made
Design changes
Risk assessments
How safety risks have been managed
5. Compliance and Enforcement
Building control authorities have new powers to:
Inspect projects at any stage
Issue stop notices
Prosecute breaches, with significant penalties for non-compliance
What Projects Are Affected?
The regulations apply to all building work requiring approval under the Building Regulations 2010, including:
New builds (domestic and commercial)
Extensions and major refurbishments
Changes of use
Higher-risk buildings (HRBs)—such as high-rise residential schemes—face even stricter requirements, including mandatory gateways and sign-offs at key stages.
Key Changes for Homeowners and Developers
Greater Clarity: You’ll know exactly who is responsible for what at every stage.
Improved Safety: Risks are identified and addressed early, reducing the chance of defects or unsafe construction.
Transparent Process: Expect more documentation, regular updates, and clear communication.
Practical Steps for Clients and Professionals
Appoint Dutyholders Early: Make sure principal designer and contractor roles are filled from the outset.
Check Competence: Ask for evidence of qualifications, experience, and insurance.
Request a Management Plan: Ensure your team has a clear plan for compliance, record-keeping, and communication.
Engage with the Process: Attend project meetings, review documentation, and ask questions about safety and compliance.
Final Thoughts
The new dutyholder regulations are a positive step for the industry, raising standards and protecting everyone involved. At SMART Developments LTD, we’re committed to guiding clients through the new requirements, making your project journey safe, transparent, and successful.
Have questions or need support? Reach out to us for tailored advice on how these regulations impact your next project.



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