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10 Gresham Street

London, United Kingdom

Raising the Bar for Sustainable Refurbishment in London

Gensler’s design for 10 Gresham Street transforms an ageing City of London office into a high-performing, low-carbon workplace — blending sustainability and nature to elevate tenant appeal.

A couple sitting at a table in front of a window overlooking a city.

145,000-Square-Foot Grade A Workplace
~17,000 Tonnes of CO₂ Saved Through Reuse
72% Reduction in Operational Carbon Over Lifecycle
All-Electric Refurbishment Designed for Low-Carbon Operation
Eight-Storey Daylit Atrium Enhancing Internal Environment
Over 1,000 Plants and Trees Integrated Throughout
Mass-Timber Rooftop Pavilion with 5,146-Square-Foot Terrace
480 Cycle Spaces, 49 Showers Supporting Active Travel
Achieved BREEAM Outstanding Award and Targeting WELL Core Platinum
Column-Free Floorplates Supporting Flexible Occupation

Across central London, demand is rising for high-quality, sustainable workplaces while many older office buildings struggle to meet modern ESG and occupier expectations. As hybrid work reshapes office demand, businesses are prioritising flexibility and well-being. Refurbishment and reuse are emerging as critical strategies to upgrade existing assets — reducing embodied carbon and delivering future-ready workplaces without relying on new development.

Gensler transformed a 20-year-old office building into one of London’s leading sustainable workplaces through a comprehensive Grade A refurbishment. The design retains and enhances the existing structure and façade, elevating both environmental performance and user experience. The existing eight-storey atrium brings daylight deep into the building, while introducing extensive planting, upgraded amenities, and a new mass-timber rooftop pavilion. New fully electric systems and flexible floorplates create a highly adaptable, wellness-led workplace.

10 Gresham Street proves that circular design can reposition ageing office stock into a premium, future-ready asset. The refurbishment delivers a zero-emission workplace, a 72% reduction in operational carbon, and an extended building lifespan — setting a new benchmark for refurbishment-led development in London. With over 110,000 square feet already pre-let, the project signals a decisive market shift toward sustainable, Grade A space.

A couple of people sitting at a table under a black awning.

A room with a table chairs and a couple people sitting at a table.

A room with a table and chairs and people in it.

“

We’ve transformed an iconic City of London building into a highly sustainable, Grade A workspace designed for the future of work. With over 110,000 square feet already pre-let, this project demonstrates the strong demand for premium, environmentally responsible offices in the heart of the city.

—Matthew Barratt, Director and Office Asset Manager, CBRE IM

A person sitting on a bench in a large room with pipes.

City A.M. spotlighted Gensler and CBRE IM’s plans to reposition London’s 10 Gresham Street. Gensler London Co-Managing Director Richard Harrison explained the building will be transformed into a high-performance, sustainable future office environment.

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