Sir Robert McAlpine-built scheme claims UK architecture鈥檚 top prize

Elevated exterior view overlooking Foster & Partners' Bloomberg building, St Stephen Walbrook and the Magistrates' Court.

Source: James Newton

Elevated exterior view overlooking Foster & Partners鈥 Bloomberg building, St Stephen Walbrook and the Magistrates鈥 Court.

Foster + Partners notched up a record third Stirling Prize win last night, triumphing with its in the City of London.

Built by Sir Robert McAlpine, jury chair David Adjaye praised it as a once-in-a-generation project that pushes the boundaries of research and innovation and demonstrates 鈥渁stounding commitment to quality architecture鈥.

Norman Foster described the building as a 鈥渕eeting of minds鈥 between his practice and his client, former New York mayor Michael Bloomberg who commissioned the $1bn building as the European headquarters of his media empire.

鈥淭he RIBA Stirling Prize is a testament to the incredible collaborative spirit that has underpinned the entire project from start to finish,鈥 said Foster.

The vortex in Foster & Partners' Bloomberg building

Source: Nigel Young / Foster & Partners

The vortex in Foster & Partners鈥 Bloomberg building

The highly specified and highly sustainable sandstone building stands between St Paul鈥檚 Cathedral and the Bank of England and replaced a post-war government office. Before winning planning permission for this mid-rise design, which takes up an entire city block, Foster designed a 22-glass tower for the site in 2006 which provoked a storm of protest.

At last night鈥檚 ceremony at the Roundhouse it beat off competition from: Jamie Fobert and Evans & Shalev鈥檚 Tate St Ives; Waugh Thisleton鈥檚 Bushey Cemetery; Henley Halebrown鈥檚 Roehampton University accommodation block; Niall McLaughlin鈥檚 Oxford University academic building; and a community building by MUMA in Cambridge.

It is Foster鈥檚 third Stirling Prize, after the Imperial War Museum at Duxford which won in 1998 and the Gherkin in 2004.

It catapults the practice into the record books, after nearly a decade of being neck and neck with Richard Rogers, Wilkinson Eyre and Zaha Hadid, the only other architects to have won twice.

Bloomberg Arcade, running through the middle of the Bloomberg building designed by Foster & Partners

Source: Nigel Young / Foster & Partners

Bloomberg Arcade, running through the middle of the Bloomberg building designed by Foster & Partners

RIBA President Ben Derbyshire, said the jury was unanimous in its decision, albeit after vigorous debate. He said the building was a monumental achievement.

鈥淭he creativity and tenacity of Foster + Partners and the patronage of Bloomberg have not just raised the bar for office design and city planning, but smashed the ceiling,鈥 he said.

鈥淭his building is a profound expression of confidence in British architecture 鈥 and perfectly illustrates why the UK is the profession鈥檚 global capital. This role and reputation must be maintained, despite the political uncertainty of Brexit.鈥

He was joined on the jury by last year鈥檚 winner, dRMM鈥檚 Alex de Rijke, Jude Kelly, former artistic director of the South Bank and Almacantar property director Kathrin Hersel. Simon Sturgis was sustainability advisor.

Michael Bloomberg and Norman Foster at the topping-out of Bloomberg's European HQ

Source: Jason Alden

Michael Bloomberg and Norman Foster at the topping-out of Bloomberg鈥檚 European HQ

Adjaye added: 鈥淏y building at a lower height than approved at planning, reserving parts of the site for public space, and using highly-detailed, handcrafted materials, Bloomberg shows a high level of generosity towards the City. This is a building of its place. Art has been commissioned as an integral part to enhance people鈥檚 experience of the spaces.

鈥淭he design process involved unprecedented levels of research, innovation and experimentation, with pioneering new details and techniques tested, prototyped 鈥 sometimes at 1:1 scale 鈥 and rigorously improved.

鈥淭he real success though is in the experience for staff, visitors or passers-by 鈥 how Bloomberg has opened up new spaces to sit and breathe in the City; the visceral impact of the roof-top view across to St Paul鈥檚 from the concourse space, the energy of descending the helix ramp or settling into a desk in one of the dynamic new workspaces.

鈥淭his ground-breaking project demonstrates what is possible through close collaboration between highly-skilled, imaginative architects and a deadly sophisticated, civic-minded client. Bloomberg is an astounding commitment to quality architecture.鈥