Founded in 1920, Louis de Soissons is an Architectural & Building Consultancy Practice with over 100 years of commercial excellence. We deliver a combination of services tailored to each client project, with a hands-on, Director led approach enabling the delivery of projects at the highest level across multiple disciplines. We are specialists in the Automotive, Healthcare and Mixed-Use sectors with exceptional experience and a track record of success in each. Our offices in London, Hertfordshire, and Surrey ensure we are ideally placed to support UK wide projects.

Creating pragmatic, buildable solutions with innovative vision


Architecture is more than design alone. It is a balanced blend of concept, technical knowledge and delivery that can only be... more

Construction Project Management

Our Construction Project Management Team work on behalf of the client whilst interacting and coordinating the design and... more

Building Surveying

We work on the complete property life cycle from inception through demolition and regeneration, we provide concise and... more

Our Projects

We understand your business

Our unique blend of experience ensures we deliver the correct solution with a simple, co-operative approach across multiple disciplines and business sectors… more

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