Thomas Pennant inherited the house on the death of his father, David, in 1763. He refurbished the house, erected a new stable block and was probably responsible for creating the walled kitchen garden. He found the pleasure grounds badly neglected with the surrounding woods encroaching on the gardens and threw himself enthusiastically into improving them. He was helped in this by the discovery of a seam of lead on the estate which, when mined, brought in a useful income. He "laid open the natural beauties of the place", improved the scenery, created walkways, vistas and
dingles and built a sunken passageway under the
turnpike road. His son, David, who inherited the house in 1793, was also a keen gardener. He added the library wing David's granddaughter Louisa was the last of the line of this branch of the Pennant family. She married
Rudolph, Viscount Feilding, later to become the
8th Earl of Denbigh. Louisa died without issue in 1853 and Lord Feilding inherited the house. He employed the architect
T. H. Wyatt to enlarge it and was also responsible for the rebuilding of the lean-to glasshouses. He did not live there most of the time, making his
Warwickshire house,
Newnham Paddox, his main residence. Downing Hall was then let to various tenants as a sporting retreat. ==20th century==