Ian Liddell

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William Ian Liddell
Born1938 (age 80–81)
EducationCambridge University, UK and
Imperial College, London, UK
Engineering career
DisciplineStructural engineer, Engineering design
InstitutionsFellow 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 nameBuro Happold
ProjectsSydney Opera House
Timber Gridshell, Mannheim, Germany
Millennium Dome, London
The Globe Theatre, London
The State Mosque, Sarawak
AwardsCBE, 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]

He is a trustee of the Arkwright Scholarships Trust and the Smallpeice Trust.


  1. ^ a b c d "List of Fellows".
  2. ^ a b "Awards of merit:Ian Liddell". iabse.org. Archived from the original on 20 October 2004. Retrieved 4 December 2010.
  3. ^ New Years Honours: DBE, KBE, CBE civil, BBC News, 31 December 1999. Retrieved 2011-11-22.