the walled garden was the site of a real tennis court in the 17th century and a bowling green by 1718. it then became an orchard; an example of an 18th-century hypocaust (heated) wall still survives, where fruit trees would have been 'espaliered' (trained flat) against the warm brickwork. there are traces of the stoking chamber for this wall in a neighbouring garden. roman and norman remains lie deep beneath the lawn.