The hall itself is built of reddish-orange brick with ashlar dressings and a Welsh slate roof in three storeys to a rectangular floor plan.
[3] After the death of Mary (who had married The 2nd Duke of Buckingham) in 1704 the estate was eventually sold c. 1711 to Alderman William Milner of Leeds who carried out many alterations to the house.
It was bought in 1920 by Sir Benjamin Dawson, 1st Baronet, another Bradford textile manufacturer, who was High Sheriff of Yorkshire for 1951–52.
[5] Nun Appleton Priory played an important part in the career of the young composer William Baines (1899–1922).
He was befriended by the Dawsons in 1921, and was inspired by the house and its grounds to write many of his "nature" pieces for piano, including Twilight Woods and Glancing Sunlight.