The Roundhouse is a Grade II* listed former railway engine shed in Chalk Farm, London, England. It has been converted into a performing arts and concert venue. It was originally built in 1847 by the London and North Western Railway as a roundhouse, a circular building containing a railway turntable, but was only used for this purpose for about a decade. After being used as a warehouse for a number of years, the building fell into disuse just before the Second World War.