Baker Street is a street in the Marylebone district of the City of Westminster in London. It forms part of the A41. It is most famous for its connection to the fictional detective Sherlock Holmes, who lived at 221B Baker Street, an address that does not actually exist.
The street is named after builder William Baker who laid the street out in the eighteenth century. It was originally a high class residential address, but now is mainly occupied by commercial premises. Baker St is in postcode areas NW1/W1 and is a busy thoroughfare.
It runs south from Regent's Park, the intersection with Park Road, parallel to Gloucester Place, intersecting Marylebone Road, York Street, Portman Square and Wigmore Street. At the intersection with Wigmore St, Baker St turns into Orchard Street, which ends when it intersects with Oxford Street. The street is served by the London Underground by Baker Street tube station; next to the station is Transport for London's lost property office.
Baker Street Station was the world's first underground station. A significant robbery of a branch of Lloyds Bank took place on Baker Street in 1971.