This used to be an old police station in Sydney.
An Australian studio named Welsh + Major gave this 19th century Sydney police station a brand new look as an upscale culinary venue.
Some of the original features of the prison were not removed to add character to the interiors.
Source: http://www.dezeen.com/2014/05/17/the-rocks-restaurant-old-police-station-converted-into-a-restaurant-welsh-major-sydney/