
Principal Designer
The “Principal Designer” is the person or organisation on a construction project appointed by the client with responsibility for:
Overseeing the coordination and management of health and safety during the pre-construction phase (CDM Regulations)
Ensuring the design’s compliance with the Building Regulations for both non higher-risk and higher-risk buildings
The role is a statutory one, prescribed by the CDM Regulations (2015) and the Building Safety Act (2022). Its title can be misleading and is often confused with “Lead Designer”, a design coordination role that LA London performs on all of our projects.
So, what is a Principal Designer?
A Principal Designer is a specialist appointed by the client to lead and coordinate health, safety, and regulatory compliance during the design and planning stages of a construction project.
Our role is to make sure risks are managed early, designs meet all legal requirements, and that your project runs smoothly from start to finish.
There are three types of Principal Designer role, each with its own focus and legal duties:
CDM Principal Designer (CDM-PD)
Focused on health and safety during design, under Construction (Design & Management) Regulations 2015.Building Regulations Principal Designer (BR-PD)
Ensures designs comply with Building Regulations and manages submissions to Building Control under the Building Safety Act 2022.Higher-Risk Building Principal Designer (HRB-BR-PD)
Leads on enhanced safety and regulatory duties for higher-risk buildings under the Building Safety Act 2022.
What We Do
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Under the Construction (Design and Management) Regulations 2015, the CDM Principal Designer leads on coordinating health and safety during the design phase to reduce risks during construction.
Designers
We will check that all other appointed designers have sufficient skills, knowledge, experience and the organisational capability to carry out the work. We have a competency questionnaire for this.Planning
We will plan, manage and monitor health and safety in the pre-construction phase of the project. This will include identifying, eliminating or controlling all foreseeable risks, and ensuring any appointed other designers fulfil their duties.Pre-Construction
We will compile the “Pre-construction Information” (PCI), which will summarise the measures taken to mitigate risks, and provide it to all parties, including tendering contractors.Health & Safety File
We will prepare the draft Health & Safety File and review and update it as the project progresses.Construction
We will liaise with the Principal Contractor to help in the planning, managing, monitoring and co-ordination of the construction phase, culminating in approving their post-construction Health & Safety File. -
The BR Principal Designer is a new legal role under the Building Safety Act 2022. We ensure your designs comply fully with Building Regulations and manage the submission of all necessary documents to Building Control.
Designers
We will check that all other appointed designers have sufficient skills, knowledge, experience and the organisational capability to carry out the work. We have a competency questionnaire for this.Building Regulations Compliance
We will create a Building Regulations compliance tracker to monitor and confirm that the design meets all regulatory requirements.Coordination
We will coordinate the design team to ensure that all aspects of the design meet Building Regulations requirements and work together as a fully compliant scheme.Building Control Application
From the outset, we will determine which type of Building Control application is needed for the project and prepare and submit the required documentation to obtain approval.Liaison with Building Control
We will liaise with the relevant regulatory body to secure final approval confirming that the project complies with Building Regulations.Construction
We will provide the completion statement to the client and the completion notice to the building control body to demonstrate compliance and support the successful completion of the project on site. -
For higher-risk buildings (HRBs) such as tall residential towers and care homes, the HRB-BR-PD has enhanced responsibilities under the Building Safety Act 2022. We take the lead on managing safety-critical information and coordinating with the Building Safety Regulator.
Designers
We will check that all other appointed designers have sufficient skills, knowledge, experience and the organisational capability to carry out the work. We have a competency questionnaire for this.Golden Thread
If agreed with the client, we will manage the “Golden Thread” of safety information during the design phase and hand it over to the Principal Contractor at the start of construction for them to create/ continue the Golden Thread.Coordination
We will make sure all designers are working together to meet Building Regulations requirements and that their designs are fully coordinated and compliant.Gateway 1/2/3 documentation
We will ensure fire safety information is submitted at Gateway 1 (the planning stage). We will act as the lead coordinator at Gateways 2 and 3, managing all required documentation and submitting applications directly to the Building Safety Regulator at each stage.Regulator liaison
If any design or construction changes arise, we will liaise directly with the Building Safety Regulator to secure the necessary approvals and ensure the project receives its final Completion Certificate.
How we do it (BR-PD)
An example of LA London’s bespoke Building Regulations Compliance Tracker
Our custom-built Building Regulations compliance tracker ensures that there is a full paper-trail for the compliance of our projects with all relevant regulations, ensuring we maintain the crucial golden thread throughout the design phase of our projects.
Our tracker is hosted on our online project management platform, Notion, which means we can share a private and secure link to it with all project team members. In this way we ensure everybody involved, in whatever capacity, has full visibility of the status of a project’s compliance, any outstanding risks, and with whom actions lie.