The Central Criminal Court of England and Wales, commonly referred to as the Old Bailey after the street on which it stands, is a criminal court building in the City of London, one of several that house the Crown Court of England and Wales. The street outside follows the route of the ancient wall around London, which was part of the fortification's bailey, hence the metonymic name.
The court has been housed in a succession of buildings on the street since at least the sixteenth century, when it was attached to the medieval Newgate Prison. The current main building block was completed in 1902, designed by Edward William Mountford; its monumental architecture is recognised and protected as a Grade II* listed building. An extension, South Block, was constructed in 1972, over the former site of Newgate Prison which had been demolished in 1904.