Before 500 AD
| Building | Location | Date built | Notes |
|---|---|---|---|
| Knap of Howar | Papa Westray, Orkney, Scotland | 3700 BC | A Neolithic farmstead, probably the oldest preserved stone house in northern Europe. |
| West Kennet Long Barrow | Wiltshire, England | 3650 BC | Passage grave located near Silbury Hill and Avebury stone circle. |
| Midhowe Chambered Cairn | Rousay, Orkney, Scotland | 3500 BC | A well preserved example of the Orkney-Cromarty type of chambered cairn. |
| Tomb of the Eagles | South Ronaldsay, Orkney, Scotland | 3150 BC | This chambered tomb was in use for 800 years or more. 16,000 human bones were found here, as well as 725 bird bones, predominantly White-tailed Sea Eagle. |
| Skara Brae | Bay of Skaill, Mainland Orkney, Scotland | 3100 BC | A large stone-built Neolithic village Mainland, Orkney, Scotland 3180 BC–2500 BC. Europe's most complete Neolithic village with a high level of preservation and sophistication. |
| Unstan Chambered Cairn | Stenness, Mainland Orkney, Scotland | 2800-3400 BC | An Orkney-Cromarty chambered cairn. |
| Maeshowe | Stenness, Mainland Orkney, Scotland | 2700 BC | A large and unique chambered cairn and passage grave, aligned so that its central chamber is illuminated on the winter solstice. |
| Barnhouse Settlement | Stenness, Mainland Orkney, Scotland | 2600 BC | A Neolithic settlement. |
| Jarlshof | Sumburgh, Shetland, Scotland | 200 BC | A complex of preserved wheelhouses, amongst the remains of a variety of much older and more recent buildings. |
| Broch of Mousa | Mousa, Shetland, Scotland | 1st century BC | Located on a small island in Shetland, this is the best preserved of numerous brochs from this period. |
| Temple of Claudius (Colchester Castle) | Colchester, Essex, England | c. 60 | The substantial podium and vaults are of the Roman temple (of Camulodunum, capital of Britain). The Norman castle above dates from c. 1076. |
| Caerleon Roman Amphitheatre | Caerleon, Monmouthshire, Wales | c. 90 | |
| 'Walls Castle' | Ravenglass, Cumbria | c. 120 | Remains of Roman bath house: one of the largest remaining Roman structures in Britain |
| Edin's Hall Broch | Duns, Berwickshire, Scotland | c. 140 | Substantial broch, sited on much earlier hill fort. One of a very few built south of the Highlands and Islands. |
| London Wall | London, England | c. 200 | Significant remains of Roman wall at various locations in London |
| Painted House | Dover, Kent, England | c. 200 | Also one of the best preserved Roman houses in Britain |
| Portchester Castle | Portchester, Hampshire | 285-290 | Complete remains of large Roman walled fort. The best preserved Roman fort north of the Alps |
| Newport Arch | Lincoln | 3rd Century | Intact arch of the former Roman gate. Part of the Roman fortifications around Lincoln. |
| Beehive cells | Eileach an Naoimh, Argyll, Scotland | 6th century | The monastic centre on this island was founded by St. Brendan the Navigator in 542. The oldest remains include a double beehive cell and a grave and cross-slab associated with Eithne the mother of Columba. These are the oldest extant church buildings in Scotland and possibly Britain. |
Read more about this topic: Oldest Buildings In The United Kingdom