The estate was sold by his family in 1832 to Sir Gore Ouseley, 1st Baronet, who rebuilt the southern facade and was High Sheriff of Buckinghamshire for 1835.
In November 1946, the Hall Barn Estate was reported in Tatler as being the "lovely home" and venue for the wedding reception for extended family and friends of the newly-wed daughter of the "charming" Lord and Lady Burnham.
The Edwardian library and ballroom, which Lord Burnham considered ugly and difficult to heat (and which had unbalanced the late 17th century design), were pulled down, and a new south and east elevation created, using stone dressings and carved capitals from the demolished extensions.
[13][14] Midsomer Murders Season 7, Episode 4 (2004) "Sins of Commission", prominently features the black gatehouse to Hall Barn.
Hall Barn was also featured in the mini-series Sense and Sensibility as Delaford House, Call the Midwife (2012 season 1, episode 5) and Black Beauty.