A long pool formed by the damming of Plants Brook named Penns Lake is also part of the hotel grounds.

He and his son Joseph Webster developed a wire drawing business and additional premises were taken on at Plants Mill and Hints Forge.

By 1815, when Joseph Webster was born, Penns Hall had become a substantial mansion; on census day in 1851 he was employing 105 men and 43 boys at the mills.

His brother Baron Dickinson Webster, born 1818, was a justice of the peace, a freemason, a member of the Aston Union and of the turnpike trust and was warden of the town in 1844 and in 1855–1858.

His business interests included the manufacture of wire, and in 1998 a blue plaque was erected at the hall by the Sutton Coldfield Civic Society, honouring his involvement in the first transatlantic telegraph cable.