British architect and academic, William Allen Alsop, has died aged 70. Alsop was born on December 12, 1947, in Northampton, England and died on Saturday, May 12, 2018. The architect was a graduate of the Architectural Association School of Architecture in London and at the time of his death, was Director of the London-based studio, aLL Design, which he set up in 2011.

Alsop is most well-known for his design of Peckham Library in Southeast London, a project which he designed with German architect, Jan Störmer. The building won the RIBA Stirling Prize in 2000 and is known for its “L” shape and use of pre-patinated copper cladding which gives it a striking turquoise color.

The architect designed in North America as well. Projects include the Glenwood Power Plant in Yonkers, New York and the Sharp Centre for Design for the Ontario College of Art and Design in Toronto. The former was designed in 2007, but plans fell by the wayside, despite being hailed in the press as “new proposal to rescue Yonkers’ Waterfront.”

Prior to his death, Alsop was on the architectural advisory boards for Wandsworth and Kensington & Chelsea Councils in London as well as being Professor of Architecture at TU Vienna and Professor of Architecture at Canterbury School of Architecture in Kent. Alsop had previously lectured Stateside too, serving as a Visiting Professor for the San Francisco Art Institute and Ball State University, Indiana in 1977. He was also The Davis Professor of Tulane University in New Orleans in 1982.