Floors Castle was built beside the River Tweed for John Ker, first Duke of Roxburghe, whose family had risen from the turbulent politics of the Scottish Borders to high office in the new British state. Construction between 1721 and 1726 followed designs by William Adam, perhaps informed by earlier ideas associated with Sir John Vanbrugh. Despite its name, Floors was conceived as a grand country house rather than a defensive castle. Its symmetrical wings, formal rooms, and commanding estate setting expressed rank, political confidence, and participation in Georgian architectural culture.

The duke’s position connected the house to the constitutional transformation of Scotland and England. He had supported the 1707 Union and served the Crown, while the estate embodied the rewards and obligations of great landownership. Floors provided spaces for hospitality, collecting, estate administration, and family ceremony. Farms, woods, gardens, tenants, and servants sustained the residence, making the house only the most visible element in a broad economic landscape. The name may derive from the surrounding “floors,” or level terraces, rather than from any medieval fortification.

Between 1837 and 1847, architect William Henry Playfair dramatically remodeled Floors for the sixth duke. He added turrets, domes, battlements, and elaborate rooflines, transforming Adam’s Georgian mansion into the romantic, castle-like composition seen today. The work reflected nineteenth-century interest in Scottish historical identity and picturesque architecture. Interiors and service arrangements were also adapted to changing expectations of comfort. Gardens and riverside walks developed alongside the building, linking the redesigned skyline to a carefully managed landscape.

Later generations continued to furnish and alter the house. Family marriages brought new wealth and collections, while portraits, tapestries, furniture, and decorative arts accumulated across rooms that preserved elements of both Adam’s and Playfair’s designs. Floors remained an inhabited ducal seat rather than becoming an institutional building. This continuity protected much of its context but required constant adaptation for heating, staffing, security, and maintenance. In 1977 the tenth duke opened the castle to the public, formalizing a balance between private home, working estate, and heritage attraction.

The duke and duchess of Roxburghe continue to use Floors as their family residence. Conservation of the extensive roof, stonework, interiors, and collections is carried out while the estate remains economically active and publicly accessible. The house’s history records the reinvention of Border aristocracy after centuries of conflict: a family associated with fortified towers adopted Georgian classicism, then deliberately recast its home in a Scottish baronial image. Floors Castle is therefore both an eighteenth-century political statement and a nineteenth-century interpretation of the medieval past, maintained through continuing private stewardship.