The Broadgate Exchange House in London, celebrated for its simple yet ingenious structural system that unifies design and function in the mid-century Modernist tradition, has been selected for the 2015 AIA Twenty-five Year Award. Designed by Skidmore, Owings, and Merrill (SOM) and completed in 1990, the Exchange House is a recognizable presence in central London.
Recognizing architectural design of enduring significance, the Twenty-five Year Award is conferred on a building project that has stood the test of time by embodying architectural excellence for 25 to 35 years. Projects must demonstrate excellence in function, in the distinguished execution of its original program, and in the creative aspects of its statement by today’s standards. The award will be presented to SOM in May at the AIA National Convention in Atlanta.
Exchange House, an elegant ten-story office building that spans over the merging tracks of London’s Liverpool Street Station, is located in London’s Broadgate Development. As one of the last remaining areas for development at Broadgate, SOM was able to envision an opportunity to resolve these challenges through a multi-faceted approach encompassing architecture, engineering, and masterplanning.
The structural and architectural solutions for this development were entirely intertwined, embracing the constraints of the site and using them to fuel a clear, elegant solution that dramatically overcomes the challenges beneath it. The building is suspended over the rail lines below via four, seven-story tied arches that bridge 256ft (78m), while only five percent of its footprint touches the ground. The centrally located lift core, fire stairs, and even the lobby are suspended from this bridge structure, touching the plaza beneath it out of necessity for access rather than support. By elevating the building the opportunity to bring an open space beneath was created, connecting Exchange Square to the south to Primrose Street to the north.
Exchange House is the first project in the United Kingdom and only the third international project to win the award. It is the sixth SOM project to win the award.
Related Stories
Office Buildings | Oct 18, 2021
Henning Larsen designs new headquarters building for KAB
The project is located in Copenhagen.
Glass and Glazing | Sep 30, 2021
Plans move forward on Central Place Sydney, duel towers with an AI-driven façade system
SOM and Fender Katsalidis are designing the project.
Office Buildings | Sep 29, 2021
Walmart’s new Home Office is the largest mass timber campus project in the U.S.
The project will occupy approximately 350 acres.
Mixed-Use | Sep 28, 2021
BIG designs new Farfetch HQ on the slopes of Leça River in Porto
The project is situated within the larger Fuse Valley site.
Office Buildings | Sep 26, 2021
Not your father’s office: Workplaces showcase their panache
Three recent projects take very different design routes.
Market Data | Sep 1, 2021
Bradley Corp. survey finds office workers taking coronavirus precautions
Due to the rise in new strains of the virus, 70% of office workers have implemented a more rigorous handwashing regimen versus 59% of the general population.
Laboratories | Aug 31, 2021
Pandemic puts science and technology facilities at center stage
Expanding demand for labs and life science space is spurring new construction and improvements in existing buildings.
Giants 400 | Aug 30, 2021
2021 Giants 400 Report: Ranking the largest architecture, engineering, and construction firms in the U.S.
The 2021 Giants 400 Report includes more than 130 rankings across 25 building sectors and specialty categories.
Laboratories | Aug 30, 2021
Science in the sky: Designing high-rise research labs
Recognizing the inherent socioeconomic and environmental benefits of high-density design, research corporations have boldly embraced high-rise research labs.
Giants 400 | Aug 27, 2021
2021 Office Sector Giants: Top architecture, engineering, and construction firms in the U.S. office building sector
Gensler, Jacobs, Turner Construction, and STO Building Group head BD+C's rankings of the nation's largest office building sector architecture, engineering, and construction firms, as reported in the 2021 Giants 400 Report.a