Transforming What Exists Into Something Extraordinary

In the heart of the City of London, 10 Gresham Street has been reimagined into one of the city’s most sustainable workplace refurbishments.
Led by CBRE Investment Management, with Mace Group as main contractor and architectural design by Gensler, the project preserves the building’s original structure and façade while introducing innovative low-carbon materials and construction methods.
As part of this landmark transformation, Avantgarde Tiling delivered a complete surface package including:

• A recycled in-situ terrazzo floor system for the new reception;
• Over 3,000 m² of floor and wall tiling across lift lobbies, washrooms and core areas;
• And bespoke terrazzo elements such as vanity units, benches and seat tops, custom-made to match the project’s aesthetic and material palette.

Together, these elements form a cohesive finish that demonstrates how sustainability, precision and design refinement can coexist.

Re-Use, Not Replace — Our Approach

When the refurbishment began, the existing granite was identified as a viable material for re-use rather than waste.
Our team recognised an opportunity to create a terrazzo floor that reflected the project’s circular economy goals, turning reclaimed materials into architectural value.
Working within a live environment, we:

• Removed sections of existing granite flooring where required;
• Processed reclaimed stone locally into graded aggregates;
• Blended them with a low-CO₂ CSA binder, reducing embodied carbon;
• Poured, finished and polished the terrazzo in-situ, achieving a seamless transition across the reception.

This process required careful coordination with Mace Group to maintain programme flow and minimise disruption, ensuring seamless delivery across multiple floors and work areas.
The result: a material that is both technically advanced and visually timeless — fully aligned with the project’s design intent and sustainability strategy.

Key Benefits of the Project

Beyond its visual appeal, the terrazzo installation represents a commitment to smarter, lower-impact construction. Each decision - from the binder mix to the installation method -was guided by performance, durability, and environmental responsibility.

• 80% recycled content — reduced waste and extended material lifecycle.
• Low-carbon binder system — measurable CO₂ reduction.
• In-situ installation — seamless finish, no prefabrication or transport emissions.
• High durability and aesthetic longevity — ideal for high-traffic commercial environments.

Sustainable Surfaces for a New Architectural Era

The terrazzo and tiling installations at 10 Gresham Street illustrate what’s possible when technical skill meets environmental awareness.
By combining reclaimed materials, in situ terrazzo production, and precision tiling across multiple levels, Avantgarde Tiling contributed to one of the most forward-thinking refurbishments in London’s commercial property sector.