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Project Dexter – Harwell Science and Innovation Campus

Case Study

Proteus HR

The Dexter building at Harwell Science and Innovation Campus, a purpose-built headquarters for the Nuclear Decommissioning Authority (NDA), sits within the campus parkland with a striking Proteus HR façade in TECU Oslo Patina copper.

Designed to establish a distinctive identity while harmonising with its surroundings, Project Dexter combines contemporary design with functional performance. Proteus HR and architectural fabrications were specified by ADP Architects to deliver a precision-engineered façade that frames the panoramic campus views, ensuring the building sits harmoniously within its environment.

Covering 1,500 m², the façade is composed of Proteus HR panels in TECU Oslo Patina copper, the rich green tones are enhanced by the brass fabrication detailing around the windows and integrated solar shading. This combination adds depth and character while allowing daylight to enter internally and reducing glare. The result is a modern yet considered presence, distinctive but sympathetic to the parkland setting.

Project Details

Sector: Offices
Architect: ADP Architecture
Systems: Proteus HR
Materials: Copper
Finishes: Patina

The project presented several technical challenges, all resolved through Proteus’ specialist expertise. The panels were specified at a 0.7mm gauge to achieve a lightweight, efficient build, while the Proteus HR honeycomb core minimises material use without compromising structural performance. The system is fully demountable, recyclable, and certified to A2-s1, d0 fire standards. Installation by Longworth Facades, working with main contractor Kingerlee, delivered precise alignment and a consistently refined finish across the façade.

Sustainability was a key focus, with the Dexter building achieving a BREEAM Excellent rating and securing over 76.2% of available credits. Proteus HR supports this performance through its thermally efficient construction and responsive design, which, alongside rooftop renewable energy systems, smart building management, and high-quality ventilation, maximises user comfort while reducing environmental impact.

“Dexter is a great example of how Proteus HR can balance technical performance with architectural expression,”

Simon Gregory, Sales Director at Proteus Facades.

The Dexter building now stands as a landmark within the Harwell Campus, demonstrating how Proteus’ innovative façade systems, combined with thoughtful design, create a resilient, high-performing facility. The evolving copper patina, interplay of light and shadow, and bespoke detailing all contribute to a building that engages with its environment, offering a dynamic presence throughout the day.

Contact us to see how a similar approach could help you achieve your vision.

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The Dexter building at Harwell Science and Innovation Campus, a purpose-built headquarters for the Nuclear Decommissioning Authority (NDA), sits within the campus parkland with a striking Proteus HR façade in TECU Oslo Patina copper.

Project Details

“Dexter is a great example of how Proteus HR can balance technical performance with architectural expression,”

Contact us to see how a similar approach could help you achieve your vision.

Proteus has delivered façade solutions across a diverse range of sectors, from education to infrastructure.

Castelnau