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Design philosophy

As one of the last significant sites available for development on the eastern edge of the Eastern Cluster, our ambition has been to design a building which respects the valuable historic and contemporary surroundings while contributing an exciting landmark building.


100 Leadenhall Street has been designed to make an elegant contribution to the London skyline and mark the eastern gateway to the City.


The façades are designed to enrich the simple geometric forms of the building with a complex three-dimensional geometry based on a pattern of interlocking diamonds, which creates an ever-changing light pattern over the course of the day.

 Indicative tower façade design 

The consolidation of three separate plots into one – 100, 106 and 107 Leadenhall Street – has allowed us to form new connections and public realm at street level.


Where previous buildings have blocked light to the St Andrew Undershaft church, our design allows light to stream in through its stained glass windows for the first time in hundreds of years.

Mouse over the images below to see the adopted design principles.

On Leadenhall Street, a pair of solid low-rise buildings create a street frontage that ties into its surroundings, while a pleated glass tower rises from a hexagonal plan at the top of this podium.


The tower angles away from both Leadenhall Street and Bury Street as it rises to enhance its slender appearance and minimise the impact on the skyline.

The Diamond - street view.jpg

 Street level view

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