The shortlist for this year's Lubetkin Prize has been announced - and all three finalists are British. David Chipperfield Architects, Foster + Partners and Grimshaw Architects have been singled out from the RIBA's International Award nominees to vie for the coveted prize.
Chipper-eld makes the shortlist for its Des Moines Public Library in Iowa, USA, which opened in April 2006. As well as being a library, the two-storey building, which includes a café, is a meeting place and community centre. The exterior is wrapped in energy-efficient glass that reduces solar gain through a copper mesh laminated between three glass surfaces. Foster's 46-storey Hearst Tower in New York also makes the list. The striking building establishes an interesting architectural dialogue between the original Art Deco headquarters and the glass faceted form above. It also uses 20 per cent less steel than a conventional skyscraper.
Grimshaw, meanwhile, is singled out for its Southern Cross Station in Melbourne, Australia, on which it worked with local practice Jackson Architecture. The focus of the vast building is a dune-like roof covering an entire city block.
According to Grimshaw, this works as a visual bridge between the city centre and a new docklands area.
The winner will be announced on 22 June. The prize's current holder, Noero Wolff Architects, won last year's inaugural competition for its Red Location Museum of the People's Struggle in South Africa.