Baker Street (ZBS)

Baker Street is one of the original underground stations and is a busy interchange of no fewer than 5 separate underground lines.

Type: Transport for London
(Bakerloo, Circle,
Hammersmith & City,
Jubilee & Metropolitan
Station code: ZBS
Opened: 1863
Platforms: 10
Baker Street was opened by the Metropolitan Railway in 1863 on its original stretch of "cut and cover" from Paddington to Farringdon [1]. Trains were hauled by steam locomotives (though with condensing systems to reduce the amount of steam released into the tunnels [2]). The deep level tube arrived in 1906 when the Baker Street & Waterloo Railway opened what would soon be known as the Bakerloo Line. Baker Street was the original Northern terminus (and one of the line's largest stations) [3] before the line was extended to Marylebone the following year.

The Metropolitan Railway opened a new branch via St John's Wood eventually reaching beyond Aylesbury and opened new open air platforms. The Hammersmith & City and Circle Lines (the latter a joint Metropolitan & District Railway scheme) were added to Baker Street in the 1870s. Finally the Jubilee Line arrived in 1979 as a split from the Bakerloo Line with a new platform being built and new passageways to allow for cross platform interchange with the Bakerloo [4].

As can be seen Baker Street is a mixture of open air, sub-surface and deep level railways and hence has a rather complicated layout. Some Metropolitan Line trains terminate at Baker Street with others being able to continue on to Aldgate sharing track with the Hammersmith & City and Circle Line trains.
Metropolian Line Platform 1

Sherlock Holmes on a Bakerloo Line platform

Original 1863 platforms 5 and 6
Metropolitan Line train prepares to depart for Watford

Hammersmith & City line major destinations

Bakerloo Line platform

[1] Jason Cross, London Underground Guide 2017 (Train Crazy, 2017) p. 100
[2] Paul Moss, London Underground (Haynes, 2014) p. 14
[3] Mike Horne, The Bakerloo Line (Capital Transport, 2001) p. 14
[4] Mike Horne, The Jubilee Line (Capital Transport, 2000) p. 38