One of the UK's top architects, Lord Foster, has been chosen to help create London's new Supreme Court building.
Lord Foster designed the Millennium Bridge
A team has been awarded a £30m contract to redesign and renovate Middlesex Guildhall in Parliament Square.
The Grade II listed building will be home to the independent Supreme Court which will replace the House of Lords when it opens in 2008.
Lord Foster's famous projects include the "gherkin" skyscraper and the Millennium Bridge, both in London.
Norwich-based Feilden and Mawson will lead the project supported by Foster and Partners and Drivers Jonas will manage the project, the Lord Chancellor announced.
The Lord Chancellor, Lord Falconer of Thoroton QC, said: "We have assembled an absolutely first-class team to see through the development of what is destined to become one of this country's landmark buildings.
"All those involved in the successful bid have track records of excellence.
"Their brief is to come up with a building design in keeping with the architectural heritage of the area but to the highest modern standards."
Middlesex Guildhall's existing Crown Court work will be relocated to other London courts.
Feilden and Mawson have recently worked with Foster and Partners to refurbish HM Treasury on nearby Horse Guards Road.
Lord Foster was also responsible for transforming the German Reichstag in Berlin and remodelling the British Museum's Great Court.