Storex, Brentford (BRPD)

delivering clarity, confidence and compliance for an 11-storey, mixed-use commercial project in the heart of West London.

Continuing our partnership with EQT Real Estate and Storex, OSG Architecture was appointed as Building Regulations Principal Designer (BRPD) for a major new-build development just off the A4 in Brentford, West London. The scheme is currently the tallest self-storage building in Europe, delivering 11 storeys of modern storage accommodation (4,890m² / 856 units) alongside 446m² of affordable ‘Fab Lab’ workshop and creative industrial space.

This project forms part of a wider programme of work with EQT Real Estate, where OSG has been appointed onto the EQT Real Estate Framework to provide BRPD across multiple Storex sites, supporting consistent and robust compliance with the Building Safety Act (BSA) and Building Safety Regulator (BSR) requirements. The framework structure ensures continuity of standards and a unified compliance strategy across the Storex portfolio.

This commission builds on our previous BRPD role for Storex Loughton. That experience enabled us to mobilise quickly, apply established compliance processes, and provide the client with early clarity on risks, supporting them through the more complex regulatory, structural and sustainability challenges associated with a taller, mixed-use urban site.

our role as BRPD

Acting as BRPD under the Building Safety Act, OSG led all Building Regulations design compliance activities for the project. Our responsibilities included:

· Acting as an independent compliance lead within the project team.

• Developing a clear, project-wide compliance strategy from the outset.
• Coordinating evidence from fire, structural, MEP and accessibility specialists.
• Identifying key design risks early particularly around evacuation, compartmentation, firefighting access and mixed-use layouts, enabling risks and issues to be addressed before design decisions became fixed.
• Maintaining a robust auditable compliance management framework to track duties under the Building Safety Act ensuring all parties had clear visibility of responsibilities throughout the project.
• Guiding the client and design team through evolving Building Safety Act (BSA) requirements to minimise programme risk.
• Preparing and issuing the Principal Designer’s compliance statement forming a key part of the project’s regulatory record and demonstrating how duties had been met.

Our established working knowledge of Storex’s operational model allowed us to set expectations early and provide strong, proactive compliance leadership throughout the design process. By integrating with the project team’s established design workflows, we were able to provide clear compliance leadership, giving the client confidence that regulatory responsibilities were fully managed. This collaborative approach ensured a balance between design progression, regulatory assurance and programme certainty.