Ian Liddell

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William Ian Liddell
Born 1938 (age 83–84)
Nationality British
Education Cambridge University, UK and
Imperial College, London, UK
Engineering career
Engineering discipline Structural engineer, Engineering design
Institution memberships Fellow of the Institution of Structural Engineers, Member of the Institution of Civil Engineers, Fellow[1] of the Royal Academy of Engineering,[1] Honorary Fellow of the Royal Institution of British Architects
Practice name Buro Happold
Significant projects Sydney Opera House
Timber Gridshell, Mannheim, Germany
Millennium Dome, London
The Globe Theatre, London
The State Mosque, Sarawak
Significant awards CBE, IStructE Gold Medal, Royal Academy of Engineering,[1] MacRobert Award, Award of Merit in Structural Engineering

William Ian Liddell(born 1938[2]) CBE FREng[1] FIStructE Hon FRIBA is a structural engineer and the designer of London's Millennium Dome. He was one of the founding partners of Buro Happold and is a Royal Academy Visiting Professor of Engineering Design at Cambridge University School of Engineering. He is now a consultant for Buro Happold.

He studied mechanical sciences at St John's College, Cambridge followed by a diploma in concrete structures at Imperial College, London.[2]

He was project engineer on the Sydney Opera House, playing a significant role in the formfinding of the iconic roofs. He received the IStructE Gold Medal in 1999.

For his work as Chief Design Engineer on London's Millennium Dome project, he was appointed Commander of the Most Excellent Order of the British Empire (CBE) in the 1999 New Year Honours.[3]

Ian has an interest in the encouragement of the next generation of engineers and designers. To this end he is a Trustee of both the Arkwright Scholarships Trust and The Smallpeice Trust.


  1. 1.0 1.1 1.2 1.3 "List of Fellows".<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  2. 2.0 2.1 "Awards of merit:Ian Liddell". iabse.org. Retrieved 4 December 2010.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  3. New Years Honours: DBE, KBE, CBE civil, BBC News, 31 December 1999. Retrieved 2011-11-22.