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Delvendahl Martin Architects

Delvendahl Martin Architects

London, GB

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The restored exterior of 30 Cannon Street
The restored exterior of 30 Cannon Street
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30 Cannon Street

The project at 30 Cannon Street was a comprehensive refurbishment that involved the sensitive rejuvenation of a listed building from the late seventies, bringing the office spaces up to current standards and considerably improving the working environment provided. The scheme included the reconstruction of the 5th floor as well as a new roof terrace, and refurbishment of the elevations and entrance lobby.

The original building, completed in 1977, was the former headquarters of Credit Lyonais. Designed by Whinney, Son and Austen Hall, it was was the first building in the UK to use glass reinforced concrete facade panels developed by Pilkington and Arup. In early 2015, 30 Cannon Street was added to the National Heritage List for England as part of a group of 14 post-war office buildings. 

Our scheme included the reconstruction of the 5th and refurbishment of the 3rd floors to incorporate additional space as well as a new accessible roof terrace, with views of St Paul's, and the refurbishment of the main entrance lobby and new lift access to the roof garden. All the GCR panels were re-coated, and the windows re-glazed as part of our refurbishment.

The site sits within the St Paul’s Heights Policy Area which, while it imposed limitations to the extension, it also offered the opportunity to improve the view from the Golden Gallery at St Paul’s and simultaneously the outlook from the building’s roof terrace of the cathedral, the City of London, Tate Modern and beyond. The terrace was designed to provide an accessible recreational space and to contribute to the biodiversity of the area.

By using the existing conditions and limitations to drive and inform the design whilst simultaneously seeking to enhance the working environment, the built heritage of the City and the building itself, 30 Cannon Street makes a considerable and innovative contribution to London’s economy.

 
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Status: Built
Location: London, GB
My Role: Architect
Additional Credits: The following consultants were also involved in the project:
Structural Engineer: Arup
M&E: Hoare Lea
Cost Consultant: AECOM
Contractor: Capel
M&E Contractor: E & B
Glazing Consultant: NET Project Management Consultancy
Landscape Architect: Applied Landscape Design
Photography: Tim Crocker

 
View of the south elevation
View of the south elevation
The South elevation showing the refurbished entrance area
The South elevation showing the refurbished entrance area
The restored exterior of 30 Cannon Street
The restored exterior of 30 Cannon Street
Drawing of the South elevation
Drawing of the South elevation
The refurbished lobby and entrance area
The refurbished lobby and entrance area
The refurbished lobby area
The refurbished lobby area
Plan of the ground floor showing the lobby area
Plan of the ground floor showing the lobby area
View of St Pauls from the new roof terrace
View of St Pauls from the new roof terrace
View of the Shard from the new roof terrace
View of the Shard from the new roof terrace
Plan of the new roof terrace
Plan of the new roof terrace

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