| Buchanan Auld House | |
|---|---|
 Buchanan Auld House in 2017 | |
| Coordinates | 56°04′01″N 04°28′48″W / 56.06694°N 4.48000°W |
Listed Building – Category C(S) | |
| Designated | 5 September 1973 |
| Reference no. | LB4083 |
  Location in Stirlingshire | |
Buchanan Auld House (or Buchanan Old House) is a ruined house in Stirlingshire, Scotland, located 1.5 miles (2.4 km) west of the village of Drymen. Historic seat of the Clan Buchanan, the house was the property of the Chiefs of Clan Buchanan who controlled the surrounding lands from at least 1231 until 1682. Following the death of John Buchanan in the late 17th century, the estate passed to the Grahams who substantially rebuilt the house during the 18th century. The property burned down in 1852 and James Graham, 4th Duke of Montrose commissioned the country house of Buchanan Castle as a replacement, which was built in 1852-1858 and stands 0.5 miles (0.80 km) to the southeast. The ruins of Buchanan Auld House exist today as part of a courtyard attached to the clubhouse of the Buchanan Castle Golf Club, which occupies the surrounding lands.