Proper noun
English Wikipedia has an article on:Baker StreetWikipedia
Baker Street
A street in the Westminster borough of London; the fictional home of Sherlock Holmes was at number 221B.
I really mean what I say. A Dickens character to me is a theatrical projection of a character. Not that it isn't real. It's real, but in that removed sense. But Sherlock Holmes is simply there. I would be astonished if I went to 221½ B Baker Street and didn't find him. Rex Stout
After working from temporary offices in Central London, the headquarters of SOE was moved on 31 October 1940 into 64 Baker Street (hence the nickname "the Baker Street Irregulars "). Source: Internet
As shooting practice during a period of boredom, Holmes decorates the wall of his Baker Street lodgings with a "patriotic" VR ( Victoria Regina ) in "bullet-pocks" from his revolver. Source: Internet
Holmes and Dr. Watson follow him from Holmes's Baker Street apartment back to his hotel and notice a bearded man following him in a cab; they pursue the man, but he escapes. Source: Internet
Garden City, N.Y.: Doubleday, 1930. p 987. The most well known of Holmes' agents are a group of street children he called "the Baker Street Irregulars ". Source: Internet
For Field, a statement like is just as fictitious as " Sherlock Holmes lived at 221B Baker Street"—but both are true according to the relevant fictions. Source: Internet