The AIA announced today that The Broadgate Exchange House, designed and engineered by Skidmore, Owings & Merrill (SOM), has won the 25-Year Award, celebrated for its function to holistically achieve urban planning in an already dense city and structural design that serves both form and function. The 10-story office building, which opened in 1990, employs mid-century Modernist, cube forms with curved arches that support the building over rail infrastructure. Positioned as the centerpiece of the Broadgate Development—which is also master planned by SOM with the help of British Rail—the designers chose one of the last remaining areas available for development, in an area characterized by thousand year-old roads and more recent rail infrastructure, as a result of London experiencing a financial boom in the 1980s, demanding a need for more office buildings.