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Building Conversions


We are really excited about the growth of this area. More and more, clients are seeing the merits of reutilising an existing building frame and Walsh can help them reap the commercial and environmental rewards.

To us it’s important to get the full picture, so we start with in depth research. We obtain archival information from external and internal sources as well as the original engineering designers. We also undertake a back analysis of the existing frame to historic codes of practice, which helps us understand how the building was designed to work. We can assess the current building and foundations including existing piles where applicable. And we’ll carry out a re-analysis of load paths and stability systems so that we can provide you with the most up to date and accurate information possible.

With this type of pragmatic advice and in depth analysis we can identify the maximum load bearing capacity of an existing frame, which can often justify three, four or even more storeys being added to the building.

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Building Conversions Projects

The Light, Friends House

A key challenge on this project was constructing the works in an active building. Sections were designed to be installed in discreet packages so that...

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38 King Street

A complex re-arrangement of the architectural layout required innovative and sympathetic structural design solutions. This is a high profile...

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St James Theatre

A constrained site, requiring complicated engineering design at basement level. This site had two main in-ground constraints, a brick culverted...

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Riverbank Plaza, Albert Embankment

Situated on the Albert Embankment in London, our task was to expand the Riverbank Plaza Hotel by designing an additional 6 storeys on top of the...

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Windsor House

On St James’s street in SW1A, this development included demolishing the original building, and erecting a new one which included a new double...

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Old Spitalfields Market, Phases 1 and 2

This redevelopment of the Old Spitalfields Market encompassed the design of several island bars and restaurants along with the reorganisation of...

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Hemel Hempstead, Kodak Building

This was both a refurbishment and new build project on a large scale. Set in the former Kodak Tower, Hemel Hempstead's tallest building, this...

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Hartley’s Jam Factory

Part refurbishment, part new build, this project was an interesting blend of the past and present and created a living and working destination within...

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