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
Sponsored | | Sep 25, 2014
Architects transform warehouse into office space while preserving its historic nature
When it came time for CSHQA, an award-winning, full-service architecture and engineering firm, to move office locations, they didn’t need to look far. The 20,000-square-foot warehouse was not only a mere three blocks away, its renovation would be an ideal demonstration piece to show existing and potential clients.
| Sep 25, 2014
Look to history warily when gauging where the construction industry may be headed
Precedents and patterns may not tell you all that much about future spending or demand.
| Sep 24, 2014
Architecture billings see continued strength, led by institutional sector
On the heels of recording its strongest pace of growth since 2007, there continues to be an increasing level of demand for design services signaled in the latest Architecture Billings Index.
| Sep 23, 2014
Cloud-shaped skyscraper complex wins Shenzhen Bay Super City design competition
Forget the cubist, clinical, glass and concrete jungle of today's financial districts. Shenzhen's new plan features a complex of cloud-shaped skyscrapers connected to one another with sloping bridges.
| Sep 23, 2014
Designing with Water: Report analyzes ways coastal cities can cope with flooding
The report contains 12 case studies of cities around the world that have applied advanced flood management techniques.
| Sep 22, 2014
4 keys to effective post-occupancy evaluations
Perkins+Will's Janice Barnes covers the four steps that designers should take to create POEs that provide design direction and measure design effectiveness.
| Sep 22, 2014
Sound selections: 12 great choices for ceilings and acoustical walls
From metal mesh panels to concealed-suspension ceilings, here's our roundup of the latest acoustical ceiling and wall products.
| Sep 15, 2014
Ranked: Top international AEC firms [2014 Giants 300 Report]
Parsons Brinckerhoff, Gensler, and Jacobs top BD+C's rankings of U.S.-based design and construction firms with the most revenue from international projects, as reported in the 2014 Giants 300 Report.
| Sep 15, 2014
Argentina reveals plans for Latin America’s tallest structure
Argentine President Cristina Fernández de Kirchner announces the winning design by MRA+A Álvarez | Bernabó | Sabatini for the capital's new miexed use tower.
| Sep 12, 2014
Armstrong first in Pennsylvania to earn LEED Platinum recertification from USGBC
The Armstrong facility is the first building in Pennsylvania and among only 17 buildings globally to achieve recertification at the highest level possible under USGBC’s LEED-EBOM program.