To be privately owned
ManorKelso
Mellerstain House

Mellerstain House in the Scottish Borders is one of the few fully preserved works by architect Robert Adam. Located approximately 13 kilometers northwest of Kelso, it is a prominent example of 18th-century Scottish architecture.
History+
The origins of Mellerstain House date back to 1725 when George Baillie of Jerviswood, a merchant's son from Edinburgh, acquired the approximately 80-hectare estate. He commissioned architect William Adam to design a new residence. Adam initially constructed the two wings of the house.
Source: Wikipedia · Licence: CC BY-SA 4.0
This description draws on the facts documented in the linked Wikipedia article; Wikipedia content is licensed under CC BY-SA 4.0. Wording and editing: Mobile History.
Location: 55.6441, -2.5615