40 Leadenhall is one of the biggest schemes to ever receive planning permission in the City of London. Located in the City’s insurance district, it will accommodate up to 10,000 people upon completion. The building is targeting BREEAM ‘Excellent’, NABERS 5 Star, and ‘Platinum’ WELL, WiredScore and SmartScore ratings.
We’ve designed the building to respond to its surrounding context while making its own confident statement within London’s famous skyline. We’re also respecting its historic surroundings, protecting views to St Paul’s Cathedral, and restoring and integrating the Grade II-listed heritage building 19–21 Billiter Street.
We’ve reconciled these contextual challenges with a rational yet striking 34-storey tower design that recalls the classic North American skyscrapers of the early 20th century. The building consists of several stepped blocks, which terrace down from the City cluster towards the river and the Tower of London. It steps back on Leadenhall Street to respect views along Fleet Street and the ceremonial route to St Paul’s.
Inside, a wide variety of floorplates cater to different office tenants, and a double-height entrance lobby creates a welcoming arrival experience. Outside, retail frontages activate the street level.
Our design combines extensive amenity and social spaces, heritage assets, and a rational approach to produce a timeless and elegant addition to the City.
![#](https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Entrance-Leadenhall-scaled.jpg?auto=format&crop=center&fit=crop&h=137&ixlib=php-1.2.1&w=210&s=f9d2ac2f6532d2698aa4b46a1b34ca9f 210w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Entrance-Leadenhall-scaled.jpg?auto=format&crop=center&fit=crop&h=275&ixlib=php-1.2.1&w=420&s=4fe9df0f97b4f225862c86b6e0dd5201 420w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Entrance-Leadenhall-scaled.jpg?auto=format&crop=center&fit=crop&h=502&ixlib=php-1.2.1&w=768&s=487f06b80658565c3b759909cc13e5bd 768w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Entrance-Leadenhall-scaled.jpg?auto=format&crop=center&fit=crop&h=670&ixlib=php-1.2.1&w=1024&s=98c81dde45464b360d37c3f39fa8c798 1024w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Entrance-Leadenhall-scaled.jpg?auto=format&crop=center&fit=crop&h=915&ixlib=php-1.2.1&w=1400&s=19f2c7bcb698a9c3915b0b880a722f54 1400w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Entrance-Leadenhall-scaled.jpg?auto=format&crop=center&fit=crop&h=1046&ixlib=php-1.2.1&w=1600&s=6648f9704d9ba8700031ef3d36f021f8 1600w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Entrance-Leadenhall-scaled.jpg?auto=format&crop=center&fit=crop&h=1256&ixlib=php-1.2.1&w=1920&s=acdb2844497c7e095710484aa2b42da5 1920w)
![#](https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_34th-Floor-Hover-scaled.jpg?auto=format&crop=center&fit=crop&h=169&ixlib=php-1.2.1&w=210&s=5f606cedbae280ae56998e23c3626bda 210w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_34th-Floor-Hover-scaled.jpg?auto=format&crop=center&fit=crop&h=339&ixlib=php-1.2.1&w=420&s=bc7f7f0513ff42db048b58ee26caa890 420w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_34th-Floor-Hover-scaled.jpg?auto=format&crop=center&fit=crop&h=620&ixlib=php-1.2.1&w=768&s=8c378480922525703e9a330c7bc6efa8 768w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_34th-Floor-Hover-scaled.jpg?auto=format&crop=center&fit=crop&h=826&ixlib=php-1.2.1&w=1024&s=8469452e3bc8d0cee521b11397175c2d 1024w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_34th-Floor-Hover-scaled.jpg?auto=format&crop=center&fit=crop&h=1130&ixlib=php-1.2.1&w=1400&s=d0af4a504f7147bc1a8f65fb440f16a2 1400w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_34th-Floor-Hover-scaled.jpg?auto=format&crop=center&fit=crop&h=1291&ixlib=php-1.2.1&w=1600&s=805af3e82792b809e80005aff95f337c 1600w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_34th-Floor-Hover-scaled.jpg?auto=format&crop=center&fit=crop&h=1550&ixlib=php-1.2.1&w=1920&s=947d86119d3f8d96f795879bc7954183 1920w)
We look forward to delivering a world-class 21st-century building that will enhance the City’s insurance district and reinforce its premier global position.
![](https://www.makearchitects.com/wp-content/uploads/2017/11/40Leadenhall_Make-drawings.png)
![#](https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Bridge-scaled.jpg?auto=format&crop=center&fit=crop&h=125&ixlib=php-1.2.1&w=210&s=b64891b670ccae6b9b330ec5ba0cbc59 210w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Bridge-scaled.jpg?auto=format&crop=center&fit=crop&h=251&ixlib=php-1.2.1&w=420&s=0d792347f2e76f967855827913f6a01c 420w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Bridge-scaled.jpg?auto=format&crop=center&fit=crop&h=458&ixlib=php-1.2.1&w=768&s=85e27c1df9fb03d461c58df4e172ab39 768w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Bridge-scaled.jpg?auto=format&crop=center&fit=crop&h=611&ixlib=php-1.2.1&w=1024&s=c617f5708a810cef3863720814c349c3 1024w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Bridge-scaled.jpg?auto=format&crop=center&fit=crop&h=836&ixlib=php-1.2.1&w=1400&s=d0a8287738d518dcab17818f2022c5ee 1400w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Bridge-scaled.jpg?auto=format&crop=center&fit=crop&h=955&ixlib=php-1.2.1&w=1600&s=a623fa33cb0c3fc6414d5eacd9384ba2 1600w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Bridge-scaled.jpg?auto=format&crop=center&fit=crop&h=1146&ixlib=php-1.2.1&w=1920&s=7b5e9ab664fb4630315a419dea06084f 1920w)
![#](https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Mezzanine-scaled.jpg?auto=format&crop=center&fit=crop&h=114&ixlib=php-1.2.1&w=210&s=0f7e06452e62be6a96309c36e29f4109 210w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Mezzanine-scaled.jpg?auto=format&crop=center&fit=crop&h=228&ixlib=php-1.2.1&w=420&s=69a9078057e62a8bc9034ac0d32c028f 420w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Mezzanine-scaled.jpg?auto=format&crop=center&fit=crop&h=417&ixlib=php-1.2.1&w=768&s=9beea15adf9084350f3027cc5da0222a 768w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Mezzanine-scaled.jpg?auto=format&crop=center&fit=crop&h=556&ixlib=php-1.2.1&w=1024&s=818aa011dff8060a48fb7c07dc851454 1024w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Mezzanine-scaled.jpg?auto=format&crop=center&fit=crop&h=761&ixlib=php-1.2.1&w=1400&s=4fdd768f43399ec74a65c74bc91b81f6 1400w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Mezzanine-scaled.jpg?auto=format&crop=center&fit=crop&h=869&ixlib=php-1.2.1&w=1600&s=d072753268621992a8c877a5d4bbdeab 1600w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Mezzanine-scaled.jpg?auto=format&crop=center&fit=crop&h=1043&ixlib=php-1.2.1&w=1920&s=d04f23602c33717f323e2272cf0e305a 1920w)
![#](https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Billiter_Entrance-scaled.jpg?auto=format&crop=center&fit=crop&h=158&ixlib=php-1.2.1&w=210&s=b3000dd43456c21b43ebc572753ad731 210w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Billiter_Entrance-scaled.jpg?auto=format&crop=center&fit=crop&h=316&ixlib=php-1.2.1&w=420&s=e1ce30f9a2e55e702fb957883415cbdd 420w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Billiter_Entrance-scaled.jpg?auto=format&crop=center&fit=crop&h=578&ixlib=php-1.2.1&w=768&s=28d25dab0ab1ee07cb219dc1079e69e5 768w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Billiter_Entrance-scaled.jpg?auto=format&crop=center&fit=crop&h=770&ixlib=php-1.2.1&w=1024&s=69225230f3be5bd1cd0ead71c1f0024a 1024w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Billiter_Entrance-scaled.jpg?auto=format&crop=center&fit=crop&h=1053&ixlib=php-1.2.1&w=1400&s=c0ca4f443a6b3be6a56dc209dc9a7d00 1400w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Billiter_Entrance-scaled.jpg?auto=format&crop=center&fit=crop&h=1204&ixlib=php-1.2.1&w=1600&s=9c974e8e0ecd5cead3a13f617e5302d9 1600w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2022%2F05%2FFINAL-PID-13253_40-Leadenhall_Billiter_Entrance-scaled.jpg?auto=format&crop=center&fit=crop&h=1445&ixlib=php-1.2.1&w=1920&s=06a81a9ff1645c2677dd994b8283471a 1920w)
![#](https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2017%2F11%2F40-Leadenhall_Location-Plan_web.png?auto=format&crop=center&fit=crop&h=148&ixlib=php-1.2.1&w=210&s=147423da66c7f733f30818e5932513bb 210w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2017%2F11%2F40-Leadenhall_Location-Plan_web.png?auto=format&crop=center&fit=crop&h=297&ixlib=php-1.2.1&w=420&s=097f7f1aaead469adddabde5624b7e0d 420w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2017%2F11%2F40-Leadenhall_Location-Plan_web.png?auto=format&crop=center&fit=crop&h=543&ixlib=php-1.2.1&w=768&s=29b3917a95e90adac125860d7de2b7a8 768w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2017%2F11%2F40-Leadenhall_Location-Plan_web.png?auto=format&crop=center&fit=crop&h=724&ixlib=php-1.2.1&w=1024&s=b74b8edf78f19dc544a3710ac33d76de 1024w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2017%2F11%2F40-Leadenhall_Location-Plan_web.png?auto=format&crop=center&fit=crop&h=990&ixlib=php-1.2.1&w=1400&s=6ade9bb850bd0481552a84676ec18005 1400w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2017%2F11%2F40-Leadenhall_Location-Plan_web.png?auto=format&crop=center&fit=crop&h=1131&ixlib=php-1.2.1&w=1600&s=85685dc9f85b40dd384c6ea7267703f8 1600w,https://make-arch.imgix.net/https%3A%2F%2Fwww.makearchitects.com%2Fwp-content%2Fuploads%2F2017%2F11%2F40-Leadenhall_Location-Plan_web.png?auto=format&crop=center&fit=crop&h=1358&ixlib=php-1.2.1&w=1920&s=f5e045a3e8a557a8b7b8dec5e2dbabd7 1920w)