Blackadder House

Blackadder House is a mansion with castle ruins in the Scottish Borders, located near where two rivers meet. The remaining structures show different building periods, from the original fortified settlement to later residential buildings added across different eras.

The Blackadder family received land rights in the 17th century as recognition for defending against English attacks in the border region. The estate was rebuilt and expanded several times afterward, growing into a substantial residence over generations.

The place takes its name from two rivers, the Whiteadder and Blackadder, that converge nearby and shape the surrounding landscape. Visitors can still see how these waterways define the character of the valley today.

The site is mainly visible from outside since the buildings deteriorated into ruins, but what remains gives a clear picture of the different construction phases. Visitors should allow time for a walk around the grounds and wear sturdy footwear, as the terrain is uneven.

The property was among the first in the region to generate its own electricity using a hydroelectric plant built directly on the grounds. This water-powered system supplied the buildings with modern power in an era before widespread electrification.