List of oldest buildings in Scotland

Columns: Building | Location | Council Area | First Built | Use | Notes
Dun Hallin | Waternish , Skye | Highland | Iron Age | Broch | Dun Grugaig | Glenelg | Highland | Iron Age | Semi-broch | Kintradwell broch | Brora | Highland | Iron Age | Broch | Sallachy broch | Lairg | Highland | Iron Age | Broch | Stairhaven | Luce Bay | Dumfries and Galloway | Probable Iron Age | Possible broch | Also known as Crow 's Neith and Broken Castle | Tirefour Castle | Lismore | Argyll and Bute | Iron Age | Broch | The walls have an average thickness of 4.5 metres ( 15 ft ) enclosing a court about 12.2 metres ( 40 ft ) in diameter . The wall still stands 3 metres ( 9.8 ft ) high | Burghead Well | Burghead | Moray | Dark Age ? | Baptistery ? | This underground structure is unique in a Scottish context and is probably of Dark Age origin , although it may be older | Restenneth Priory | Forfar | Angus | 13th century ? | Monastery | Probably built on a much earlier site and the date of the extant structures is not clear

Example questions:
This iron-age broch , among the oldest undated buildings in Scotland , Is located on which coast of the second largest island in Shetland ? | Balfour Castle Is located on an island that is also the site of an Iron-age broch , among the oldest undated buildings in Scotland , that was first excavated when ? | Trifur broch , among the oldest undated buildings in Scotland , is located on an island whose name possibly means what ?

Answers:
the east coast | mid 19th century | great enclosure , or garden