100 Leadenhall Street in London

100 Leadenhall Street, London Building, Project Planning Consent, Architect, Architecture Images

100 Leadenhall Street in London

Lai Sun Development Group City Skyscraper: Tall Building UK – design by SOM Architects

10 Jul 2018

100 Leadenhall Street

Architects: SOM
Location: Leadenhall Street, London, England

100 Leadenhall Street

100 Leadenhall Street in London

The SOM designed 100 Leadenhall Street, for the Lai Sun Development Group and their asset manager London & Oriental, has been awarded planning consent by committee today, the morning of Tuesday 10th July. This leads on from the planning submission in January 2018, following SOM’s appointment in 2016 after a design competition between five renowned architectural teams.

100 Leadenhall Street in London 100 Leadenhall Street in London

At 263.4m AOD the building will be the third tallest in the City of London and falls within the City’s eastern cluster. Providing over 1.3M sf GEA of office-led development, the project is thought to be the last significant development opportunity in the cluster. The tower adopts a tapered form to ensure that the impact on significant views of St Paul’s Cathedral from Fleet Street and other key London views are respected and incorporates a richly articulated façade incorporating a diamond glazing pattern. The building places sustainability to the fore and targets BREEAM Excellent alongside other carbon and energy saving strategies.

Leadenhall Street’s buildings are predominantly stone and the building embraces this with limestone elevations at its base. At ground floor, a number of new retail spaces are provided and new pedestrian routes linking Leadenhall Street to St Mary Axe and Bury Street. The proposals incorporate three new distinct public spaces, an open courtyard at the south entrance, new open space at the north entrance linking to the wider public realm network and reinstates the churchyard to the east of the adjoining Grade I listed St Andrew Undershaft, providing an additional 10,000 sf of public open space.

In addition to the new public routes through the site, a double-height through-lobby is provided, allowing access from both north and south approaches. A separate entry provides direct access to a freely accessible viewing gallery that offers 360° views at Level 55 and a dramatic three storey view to the south, east and west at Level 56.

The building will contribute to the continued development of the City as the world’s pre-eminent financial market and act as a catalyst for future growth.

The City of London is a unique combination of heritage assets with some of the most internationally recognised buildings of the 21st Century. SOM is proud to be a part of this architectural legacy. Our approach is sympathetic to this rich historic context whilst designing a building that combines our architecture, sustainability and structural engineering sensibilities into a landmark design.
Kent Jackson, Design Partner, SOM

100 Leadenhall Street in London

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SOM Architects


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St Helens Square, City of London
St Helen’s Square
image from Gillespies
Plans for a redesigned St Helen’s Square in the heart of the City of London. This key public space lies at the historic junction of Leadenhall Street and St Mary Axe, and offers the third largest open space in the City of London (3,325 sqm).

London Architect

Key Buildings close by to the 1 Undershaft Building:

122 Leadenhall Street
Former Post Office building
image © Adrian Welch

Lloyds Building
Lloyds Building
photo © Nick Weall

Swiss Re Building
Swiss Re Building
photo © Nick Weall

Tower 42
Tower 42
photo © Nick Weall

Willis Building
Willis Building London
photo © Nick Weall

Bank of England
Bank of England
picture © Adrian Welch




St Helen’s Building London

City of London Buildings

London Buildings

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100 Leadenhall Street

Website: London