Kingsway is a major road in central London, designated as part of the A4200. It runs from High Holborn, at its north end in the London Borough of Camden, and meets Aldwych in the south in the City of Westminster at Bush House. It was built in the 1900s. Together Kingsway and Aldwych form one of the major north-south routes through central London linking the ancient east-west routes of High Holborn and Strand.
The road was purpose built as part of a major redevelopment of the area in the 1900s. Its route cleared away the maze of small streets in Holborn such as Little Queen Street and the surrounding slum dwellings. However Holy Trinity Church, which was built in Little Queen Street was spared. Whereas the Sardinian Embassy Chapel, an important Roman Catholic church attached to the Embassy of the Kingdom of Sardinia, was demolished to make way for the new street.
Plans were published by London County Council in 1898 and the road was formally opened in 1905. It is one of the broadest streets in central London at 100 feet (30 m) wide.
It was unique in containing below it a tunnel for a tramway, which started just north of Southampton Row, passed beneath Aldwych and continued to the Thames Embankment: this Kingsway tramway subway joined the North and South London tram systems. In 1958 the disused tunnel was reopened at the southern end to make a new connection, the Strand Underpass, for light traffic between Waterloo Bridge and Kingsway on order to reduce congestion. Also beneath Kingsway was a branch of the Piccadilly tube line from Holborn to Aldwych. It is now closed with no service but the platform at Holborn used for the branch is used for TV and film sets that require underground scenes. During WW2 the branch was used to store art treasures from the British Museum, including the Elgin Marbles.
The original buildings were built between 1903 and 1905. They were mostly mid-rises in stone, and in various styles including neoclassical and neo-Baroque. Many survive but some have been replaced. Notable buildings include:
- Aviation House (the headquarters of the Food Standards Agency, Government Digital Service and Ofsted; also the site of the Medical Research Council Clinical Trials Unit)
- Victory House (the London Central Employment Tribunal)
- Africa House
- Alexandra House (currently empty)
- York House (Mewburn Ellis)
- CAA House (a major office of the Civil Aviation Authority)
- Various buildings of the London School of Economics
- Kingsway telephone exchange is also located nearby
- Kingsway Hall, Methodist mission hall, later a recording studio for Decca Records
- 129 Kingsway was the site of a recording studios owned by De Lane Lea Studios and was used by Jimi Hendrix, The Beatles and others. It is now a supermarket.
As part of the redevelopment a tram tunnel was built underneath the road. The trams ceased to run in the mid 20th century and since 1961 the southern end of the tunnel has been used by cars under the name of the Strand Underpass. The northern entrance to the tunnel still exists (with its tram lines still in situ, see image right) and can be found at the junction of Southampton Row and Vernon Place.
See also 
- Kingsway telephone exchange, an underground telephone exchange
- The King's Way, a song by the English composer Edward Elgar to a poem written by his wife, celebrates the opening of Kingsway.
- Simon Bradley and Nikolaus Pevsner, The Buildings of England, London 6: Westminster, 2003. ISBN 0-300-09595-3.