Holborn Viaduct
A new 16-storey office building situated on a complex site in the heart of the City, bound by the Holborn Viaduct, Farringdon Street and Thameslink railway.
Key features
Working with site constraints
Various constraints were negotiated to minimise impact, including a heritage listed gatehouse, Underground tunnels, sewers and a Thameslink station.
Movement monitoring to surrounding assets
During the demolition of three existing buildings, movement monitoring ensured stability of surrounding assets.
New double basement
The new double basement features mezzanine levels and supports fourteen storeys above Farringdon Street.
Re-use of piles
The existing concrete piled foundations were re-used and justified.
Surface water flood risk mitigation
Detailed assessment of the overland flows and surface water flood risk to establish a flood mitigation strategy to ensure the building is protected from flash flooding.
