Building Regulations Principal Designer

Compliance made clear, coordinated, and confident.

The Building Regulations Principal Designer (BRPD) role was introduced under the Building Safety Act to strengthen accountability and ensure that every building project is safe and compliant by design. OSG has embraced this responsibility from the start. Based in Kent and working across London and the South East, we provide BRPD services that give clients, contractors and design teams complete confidence that compliance is being managed by experienced professionals.

Whether appointed as lead designer or as a stand-alone BRPD, our role is to plan, manage and monitor design work efficiently, transparently and without delay, so that the finished building is designed with compliance at the forefront.

What our BRPD service offers

Our BRPD team combines technical expertise with practical understanding. We work as part of your project team, helping to maintain compliance, reduce risk and keep programmes on track.

■ Full compliance with the latest Building Regulations.
■ Independent BRPD appointments where the lead designer is unavailable or unwilling.
■ Rapid mobilisation for fast-start or complex projects.
■ Verification that all designers and consultants meet the required Skills, Knowledge, Experience, and Behaviours (SKEB) competencies for safe and compliant project delivery.
■ Co-ordination with contractors, QSs, employers’ agents and project managers to de-risk approvals.
■ Proven capability on high-risk buildings, refurbishments and mixed-use developments.

How clients benefit

Appointing OSG as your BRPD gives you a partner who brings structure and assurance to the design process.

■ Reduced risk – proactive management avoids compliance issues before they arise.
■ Time and cost efficiency – early involvement keeps projects moving smoothly through approval.
■ Flexible integration – we work seamlessly alongside existing design teams.
■ Confidence in delivery – every decision and document is backed by technical expertise and accountability.
■ Exceptional value – our fees are typically 15–25% lower than equivalent London practices.

Why choose OSG?

Our BRPD service is built on the same technical depth that defines our architecture. We have translated our design and delivery experience into a proactive, responsive compliance offer that makes the process simpler for clients.

We are trusted by developers, contractors and public bodies for our reliability, transparency and collaborative approach. Our aim is straightforward: to make compliance clear, efficient and worry-free, even when we are not the project architect.

View BRPD Commercial Project Case Study - Storex Loughton

View BRPD Commercial Project Case Study - Storex Brentford

Contact us to discuss your project

If you need a Building Regulations Principal Designer for your next development, our team can help you achieve compliance with confidence.

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