Built into an existing courtyard in 1793, the Bath House was designed by Sir John Soane. The bath had hot and cold running water and took 3000 gallons of water (13,600 litres) to fill. Next to the bath stands an early nineteenth-century shower that was filled directly from the bath.The woodwork in this area is pine that has been grained to give a decorative paint effect that simulates oak, which, if used, would have split in the heat. The walls are painted plaster that has been spatter-finished to simulate porphyry (a type of stone). The bath surround is marble that has been grained as a wood finish to give a warmer look to this area.