Buro Happold won the Aga Khan Award for Architecture for Tuwaiq Palace in Riyadh in 1998 and again in 2010 for the design of the Wadi Hanifah wetlands. Buro Happold also won the Queen's Award for Enterprise twice, for export achievement and again for sustainable development. In 1999 Buro Happold engineers Ian Liddell, Paul Westbury, Dawood Pandor and technician Gary Dagger won the Royal Academy of Engineering's MacRobert Award for their design of the Millennium Dome – only the second time in the award's history that it has gone to a construction project. Buro Happold received the accompanying gold medal.