In early 1760s Lancelot 'Capability' Brown was asked to create a plan for the park & gardens at Adderbury for Jane, Duchess of Argyll. It is more likely that improvements to the landscape were overseen at a later date by Henry Scott, 3rd Duke of Buccleuch after he inherited the estate from her in 1767. Brown's account book shows a charge of £42 for a journey to Adderbury & the preparation of plan 'for alteration of the Park & Gardens'. It is unclear how much, if any, of Brown's plans were implemented but when the estate was sold in 1774, the grounds consisted of 224 acres of flower gardens, parkland enclosed by belts of evergreens and forest trees and “a fine serpentine stream of water in full view of the house” which was very much in his style.