A much altered house, which now appears as a succession of white-painted joined gabled ranges. The scale of the surviving walled gardens, close to the River Severn, indicate something of the former status of the place.

In 1697, Underdale was acquired by Methuselah Jones from the Hunts of Boreatton, and by 1750 the house was occupied by Charlton Leighton – later Sir Charlton Leighton, 3rd Bt of Loton (q.v.) (c. 1715–1780) – and his wife, the former Anna Maria Mytton.

Thomas Pennant’s draftsman, Moses Griffith, visited in the early 1790s. He recorded a large brick house with central projecting bay containing a first-floor Palladian window over a pedimented doorcase flanked by two bays below parapets which, in turn, were flanked by wider two-bay ranges. The whole house had a long hipped roof hiding behind a parapet with a pair of dormers peeping above. Set back to the left of the house, in a grove of trees, was a seven-bay detached orangery with arched windows. At this time, the house was home to the Misses Pigott – Arabella, Anne and Mary Harriet (better known as Harriet) – daughters of the Rev. William Pigott, Rector of Chetwynd and Edgmond, and his wife Arabella, daughter of John Mytton of Halston. The Rev. William’s elder brother, Robert, had sold the family’s main seat at Chetwynd (q.v.). The Misses Pigott were friends of the Ladies of Llangollen, who regarded them as ‘pleasant, unaffected good girls’. The girls’ grandfather, Robert (1664–1746), was a Jacobite who visited the Old Pretender in Rome and it is said that he was given his portrait. Interestingly, when the Ladies of Llangollen visited Underdale in October 1789, they described how Mrs Pigott ‘showed us an Ivory Medallion of James the 3rd’. The Pigott’s daughter, Harriet, had literary aspirations and published The Private Correspondence of a Woman of Fashion, a collection of her letters written during the French Wars.

Richard Scott (1758–1821), brother of the Rev. George Scott (1756–1799) of Betton Strange, appears to have aquired Underdale in the early nineteenth century. Unmarried, he bequeathed it with his other properties at Whitley (q.v.) and Peniarth Ucha, Merionethshire, to his nephew George Jonathan Scott (1807–1875) of Betton.