221B Baker Street
LONDON ADDRESS OF THE FICTIONAL DETECTIVE SHERLOCK HOLMES, CREATED BY THE WRITER OF THE FAMOUS 'SHERLOCK HOLMES', SIR ARTHUR IGNATIUS CONAN DOYLE'
221b Baker Street; 221 B Baker Street; 221b; 221B; 21B Baker Street
221B Baker Street is the London address of the fictional detective Sherlock Holmes, created by author Sir Arthur Conan Doyle. In the United Kingdom, postal addresses with a number followed by a letter may indicate a separate address within a larger, often residential building.