Named after the former Gaelic territory of Clandeboye, the estate was the home of Lindy, Marchioness of Dufferin and Ava, widow of the last Marquess (the title being extinct), until her death in October 2020.
The parklands familiar to visitors today were originally laid out by the 1st Marquess, who was also responsible for the addition of the banqueting hall to the house in 1898.
As a result of the work of the 1st Marquess, Clandeboye is home to the largest area of broad-leaved woodland in Northern Ireland, consisting mostly of oak, birch, and beech.
The estate is also home to a large variety of animal species; those recorded as present on the estate include the osprey, red kite, tree sparrow, barn owl, yellowhammer, song thrush, pipistrelle bat, red squirrel, fallow deer, common newt, marsh fritillary, and the wall brown butterfly.
[citation needed] The 2011 BBC television series The Country House Revealed was accompanied by a full length illustrated companion book, which featured Clandeboye Estate as a dedicated chapter appearing as Chapter Five of the book edition.