Baker Street Regent's Park, the junction with Park Road, parallel to Gloucester Place, meeting Marylebone Road, Portman Square and Wigmore Street. At the junction with Wigmore Street, Baker Street turns into Orchard Street, which ends when it meets with Oxford Street. After Portman Square the road continues as Orchard Street. Baker Street was laid out in the 18th century by the builder William Baker, after whom it is named. In 1835, the first wax museum of Madame Tussauds was opened on Baker Street. The museum moved, just around the corner, to Marylebone Road in 1884. Also in 1835 the sculptor James Fillans
221B Baker Street Street" was a suite of rooms on the first floor of a lodging house above a flight of 17 steps. The main study overlooked Baker Street, and Holmes' bedroom was adjacent to this room at the rear of the house, with Dr. Watson's bedroom being on the floor above, overlooking a rear yard that had a plane tree in it. The street number 221B was assigned to the Sherlock Holmes Museum on 27 March 1990 (replacing the logical address 239 Baker Street) when the Leader of Westminster City Council, Lady Shirley Porter, unveiled a blue plaque signifying the address of