Ken Adam, the designer of suave British spy James Bond's fictional worlds, has died at his home in London at the age of 95, British media reported on Friday.

The Oscar-winning British production designer, who dreamt up the elaborate lairs of Bond villains as well as 007's Aston Martin ejector seat, died on Thursday, the BBC reported.

"The Bond family mourns the passing of our beloved friend Sir Ken Adam who was so responsible for the visual style of the James Bond films," read a tweet on the film franchise's official account.

Former Bond star Roger Moore tweeted: "Sir Ken Adam -- a friend, a visionary and the man who defined the look of the James Bond films."

Adam's biographer Christopher Frayling told the BBC: "As a person he was remarkable. Roger Moore once said about him that his life was a great deal more interesting than most of the films that he designed.

"He was a brilliant visualiser of worlds we will never be able to visit ourselves."

He was born Klaus Adam in Berlin in 1921 and served in Britain's Royal Air Force during the Second World War when his Jewish family fled the Nazis to England.

Adam also designed the Pentagon War Room in Stanley Kubrick's cult classic "Dr Strangelove".

His two Oscar wins were for Kubrick's "Barry Lyndon" and "The Madness of King George".