CGI of Walsingham House on the architect's website at

CGI of Walsingham House on the architect's website at


Walsingham House

35 Seething Lane, London EC3N 4AH
October 2018

Description of Walsingham House

Walsingham House is an office building in the City of London EC3.

Redeveloped in 2018.

The interior structure of the building was demolished while retaining the Portland stone façade. New piled foundations will enable the construction of a steel frame structure, adding two additional floors to the existing eight-storey building and creating nearly 50 per cent more internal office space to provide a net internal area (or NIA) of 65,000 sq ft.

The retained façade was cleaned and restored, and to achieve a targeted BREEAM Excellent rating, ISG upgrades glazing with high-performance units sympathetic to the original art deco window designs. The 2 additional floors feature curtain walling and contemporary Portland stone cladding.

Upper floors are served by a single core featuring 3 lifts and 2 staircases and at basement level. The open plan office layout will be fitted out to a high Cat A standard, with a spacious reception area created at ground floor level.

Originally built in 1929 by the designs of Howard Souster.

The building is situated opposite the Grade I listed St Olave’s Church, near the Tower of London on Seething Lane, Crutched Friars and Pepys Street.

1. ISG

Connected Companies

Main Contractor:


The nearest tube, train and bus stations.
Tower Hill Underground Station
Circle, District
Great Tower Street
15, N15

News: (1)

ISG recently celebrated reaching the highest point of construction at the Walsingham House project.

The ISG team joined together with project manager’s JLL, architects John Robertson Associates, and structural engineers Campbell Reith Hill and Services Consultants Long & Partners, as well as a number of key subcontractors, with whom it has been working for over two years to radically transform and upgrade Walsingham House, to celebrate the project milestone with a topping out ceremony.

Paul Webster, ISG’s project director, commented:
“It’s a fantastic achievement to reach such an important milestone in this project, and see the reimagined Walsingham House as it continues to take shape. We’ve overcome some significant challenges to get to this point and I’d like to thank everyone involved for their hard work and commitment in helping us get here.”

The building is due for completion in October 2018.


29/06/2018 10:31 by Buildington

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