The Pei-designed pavilion resides in the grounds of Oare House near Marlborough
Chinese-born American architect I. M. Pei will, on 11 February, receive one of the world's most prestigious prizes for architecture, the Royal Gold Medal, at a glittering ceremony at the Royal Institute of British Architects (RIBA) in London.
The 92-year-old is best known for buildings including the pyramids at the Louvre in Paris and the east wing of the National Gallery Washington DC.
His only UK building is a private garden pavilion in the grounds of Oare House near Marlborough.
Given in recognition of a lifetime's work, the Royal Gold Medal is approved personally by Her Majesty the Queen and is given to a person or group of people who have had a significant influence 'either directly or indirectly on the advancement of architecture'.
Pei said: "It is a great honour to receive the Royal Gold Medal from the Royal Institute of British Architects. I am humbled indeed to read the names of those who have preceded me as recipients."
The Oare House pavilion won a Georgian Group Award in 2005
Previous winners include Sir Edwin Lutyens, Frank Lloyd Wright, Le Corbusier, Ludwig Mies van der Rohe, Oscar Neiemeyer, Norman Foster and Richard Rogers.
The Oare House pavilion was commissioned by owners Henry and Tessa Keswick.
The pavilion punctuates the view from Oare House to the Wiltshire Downs beyond and serves both as an eye-catcher and a comfortable living space-cum-function room providing areas for dining, sitting and studying.
Decorated by John Stefanidis, it was completed in 2004 as a private initiative to commemorate the millennium.
The building won The Georgian Group's 'New building in a Georgian context' Award in 2005.