221B Baker Street is the fictional address of Sir Arthur Conan Doyle's Sherlock Holmes, introduced as the detective's address in the first Holmes novel A Study in Scarlet. When Conan Doyle wrote his works, Baker Street addresses did not go that high, but as the development of London continued, a real 221B Baker street was eventually created in 1932, originally belonging to a bank before the address was commandeered by The Sherlock Holmes Museum, despite the fact that the museum is technically located a few buildings down the street in numerical order. Even when not addressed by exact location, Holmes’ apartment at 221B Baker Street plays a key role in all of the Sherlock Holmes stories, providing Holmes with with a comfortable place to sleuth, decipher clues, and solve mysteries.