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Costain moves headquarters to City of London

70 St Mary's Axe

27 February 2024

  • Investment in new modern office in the heart of London will meet demand for accessible, collaborative workspaces for Costain’s people, partners and customers
  • Sustainability credentials critical to decision-making

Costain has today announced that the company’s headquarters will be relocating to 70 St Mary Axe, a new, modern head office in the heart of the City of London.

Costain will occupy all 17,181 sq ft of the 7th floor of 70 St Mary Axe as it increases its presence in the capital. The move is expected to complete in the second half of 2024.

The office will have capacity for approximately 125 desks, increasing Costain’s existing London capacity by around 400%. The space is being designed to support multiple user experiences, with permanent and hot desks, customer meeting rooms, training areas and informal meeting spaces, with integrated smart technology throughout. 

Alex Vaughan, Costain’s chief executive, commented: “This is an exciting new chapter in Costain’s 159-year history and one that points to a bright future. I’m really looking forward to the tremendous opportunities that the new head office will provide to all our people and our customers.

“Over the last few years, working requirements have changed, with increased co-location with our customers and dynamic working. We need an office that makes it easier for our people, customers and partners to connect, collaborate and create, and our new head office will do just that.”

The new office was selected with sustainability in mind, with the building having the highest energy efficiency certification, including a BREEAM Excellent rating, and space for 328 bicycles. Easily accessible from mainline transport hubs, including the Elizabeth Line and London’s Liverpool Street Station, the location will encourage the use of public transport.

As part of the move, Costain will vacate its existing Maidenhead and London offices. The company will maintain a presence in Maidenhead for employees based there and is finalising a suitable location.



Enquiries: George Parrett [email protected]  


Notes to editors 

About Costain  

Costain helps to improve people’s lives by creating connected, sustainable infrastructure that enables people and the planet to thrive. We shape, create and deliver pioneering solutions that transform the performance of the infrastructure ecosystem across the UK’s transport, energy, water, and defence markets. 

We are organised around our customers anticipating and solving their challenges and helping to improve performance. By bringing together our unique mix of construction, consulting and digital experts we engineer and deliver sustainable, efficient and practical solutions.