Clan Rising
Caerau Hillfort today

Wales · Partial ruin

Caerau Hillfort

Caerau Hillfort is a large triangular multivallate Iron Age hillfort occupying the western tip of a ridge-top plateau in the western suburbs of Cardiff. It is one of the largest Iron Age sites in south Wales and contains, on its north‑eastern side, a small medieval ringwork and the ruined parish church of St Mary within the enclosed area.

Recreate this castle →Defend this castle →

Photograph via Wikimedia Commons

Its prime

-100

Today

Partial ruin

As it stood in -100

What Caerau Hillfort looked like in its prime.

A broad triangular ridge‑top plateau defended by multiple concentric earthen ramparts and accompanying ditches; the steep north and south slopes are ringed by three massive turf-and-soil banks, while the east side shows fewer banks (two in the north, one in the south). The ramparts curve at the eastern approach to command the way in; a western/southern entrance lacks a pronounced inturn. The interior is a flat grassy plateau crossed by two linear earthworks and an eroded north‑west apex where spring water has cut into the bank.

Its story

The story of Caerau Hillfort.

Caerau is a large triangular multivallate Iron Age hillfort occupying the western tip of an extensive ridge-top plateau in the western suburbs of Caerau and Ely, Cardiff, built on a previously occupied Neolithic site. It is the largest Iron Age site of its type in south Wales and one of the largest in Great Britain, once a stronghold of the powerful Silures, the tribe who inhabited this part of Wales before the arrival of the Romans.

Within the hillfort, on its north-eastern side, stand the ruined old parish church of St Mary and a small ringwork, almost certainly a medieval castle site, probably contemporary with the church: a medieval castle planted inside a prehistoric stronghold.

Step inside

5 places to explore in -100.

The record describes 5 distinct spots at Caerau Hillfort, including 1 interior: interior plateau with traversing earthworks. Create your own photoreal reconstruction and explore every one, more scenes means more rooms, more angles, and more of the place to stand in.

Lower grassy approach looking up the south slopeEastern entrance and curved rampartsSouth-side entrance west of the cornerNorth‑west apex and spring-eroded bankInterior plateau with traversing earthworks

Build Your Own Castle

Recreate Caerau Hillfort with AI to explore it.

The artist rebuilds it as it stood in -100, a photoreal reconstruction that belongs to you alone. Pay with coins, no subscription needed.

Recreate this castle →Defend this castle →

Nearby

Landmarks within reach of Caerau Hillfort.

Cardiff City Stadium, WalesStadiumCardiff City Stadium3 km awayMillennium Stadium, WalesStadiumMillennium Stadium5 km away

Questions about Caerau Hillfort

What is the history of Caerau Hillfort?

Caerau Hillfort began as an Iron Age stronghold in the first millennium BC, occupying a ridge-top plateau and defending the territory of the Silures. Excavations showed occupation began about 600 BC, after earlier Neolithic use of the site. A medieval ringwork and St Mary’s church were later established inside it.

What is inside Caerau Hillfort?

Inside Caerau Hillfort is a flat grassy interior crossed by two earthworks, possibly old field boundaries or remains of an earlier enclosure. The north-eastern side contains the ruined parish church of St Mary and an oval medieval ringwork, defined by a rampart and ditch.

Why was Caerau Hillfort built, and what was it used for?

Caerau Hillfort was built as a defended Iron Age stronghold on a ridge-top plateau. It was once associated with the powerful Silures, who inhabited this part of Wales before the arrival of the Romans. Its later medieval ringwork probably served as a castle site inside the older fortification.

Where is Caerau Hillfort?

Caerau Hillfort is in Caerau and Ely, in the western suburbs of Cardiff. It occupies the western tip of an extensive ridge-top plateau and is surrounded by housing and the A4232. The site is located in the administrative area of Caerau.

What did Caerau Hillfort look like in its prime?

Caerau Hillfort looked like a broad triangular plateau defended by multiple concentric earthen ramparts and ditches. Three massive turf-and-soil banks fortified the steep north and south slopes, while fewer banks defended the east. The eastern ramparts curved around the entrance to command the approach.

Is Caerau Hillfort still standing or is it a ruin?

Caerau Hillfort survives in partial ruin, with its earthwork defences and interior plateau still visible. The old parish church of St Mary within the enclosure is ruinous, consisting of surviving stone walls, a nave, chancel and tower. The north-west apex has been heavily eroded by spring water.

More castles of Wales

Neath Castle, WalesNeath CastlePenhow Castle, WalesPenhow CastleOld Beaupre Castle, WalesOld Beaupre Castle

Explore the city

Caerau Hillfort stands in historic Cardiff, explore the whole city through the ages

Cardiff, WalesWalesCardiffExplore it in 1300 · 1910Caernarfon, WalesWalesCaernarfonExplore it in AD 120 · 1330
Explore historic Cardiff through the ages · All castles of Wales · Castles of Europe · the best castles in Europe · explore the finished reconstructions.