multiculturalism is one of its great selling points. We want to retain the best talent and the new visa restrictions are not conducive to that."

London has some of the greatest design and architecture schools in the worldKieran Long

London mayor Boris Johnson is understood to share the institutions' concerns and convened a meeting with leading London arts schools this summer to discuss the issue. However, the mayor has no influence over national immigration policy. The UK's Conservative government introduced the rules to appease backbench MPs, who demanded a tougher stance on immigration.

Dezeen spoke to leading figures in the design world during the London Design Festival last month to get their views on London's position as a centre for design and the reasons for its current strength as a creativedown somehow, to me, is anathema to what London really is."

Sudjic said: "London is a great place to be but it can't be complacent and one of the things it has to do is go on attracting smart and new people and get them to stay."

The city must go on attracting smart and new people, and getting them to stayDeyan Sudjic

Alex de Rijke, dean of the School of Architecture at the Royal College of Art, added that funding cuts and the rising reputation of schools abroad presented new threats to London. "Inevitably you produce a lot of architects that stay for a while then go and forge a career, whereas perhaps in the future that will not be the case as emerging economies all over the world will