In the early years of the 18th century Sir James Tillie updated his will and included a rather mysterious instruction about his last resting place. He was to be interred ‘in such a place at Pentillie Castle as I have acquainted my dearest Wife the Lady Elizabeth Tillie with.’
Grimston Park was rebuilt by the Hon. Colonel Caradoc, later 2nd Baron Howden, from around 1839, transforming a ‘plain country house’ into a ‘splendid chateau’. New offices and estate buildings were also erected, including this ‘object tower’.