a street in the Marylebone district of the City of Westminster in London. It is named after builder William Baker, who laid out the street in the 18th century. The street is most famous for its connection to the fictional detective Sherlock Holmes, who lived at a fictional 221B Baker Street address on the north of the street. The area was originally high class residential, but now is mainly occupied by commercial premises.
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Holmes sat in silence in the cab as we drove back to Baker Street, and I knew from his drawn brows and keen face that his mind, like my own, was busy in endeavouring to frame some scheme into which all these strange and apparently disconnected episodes could be fitted.
Arthur Conan Doyle. Sherlock Holmes: The Hound of the Baskervilles (1902)