Scheduled MonumentsWalesCastell Dinas
Prehistoric · Hillfort

Castell Dinas

Breconshire, Wales
Cadw SAM BR015
Period
Prehistoric
Site type
Hillfort
Broad class
Defence
Nation
Wales
Boundary

Scheduled area

© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw

Overview

History & significance

Castell Dinas is a prehistoric hillfort situated in Breconshire, Wales, dating to the Iron Age period. The site occupies a prominent hilltop position and is defined by substantial defensive earthworks comprising banks and ditches that encircle the summit, a characteristic feature of Iron Age hillforts across Wales and the broader British Isles. The monument represents an important example of Iron Age settlement and territorial control in the Brecon Beacons region, reflecting the strategic and defensive priorities of prehistoric communities in South Wales. As a scheduled ancient monument under Cadw protection, Castell Dinas remains significant for understanding the settlement patterns and fortification strategies of Iron Age societies in Wales.

Castell Dinas is a scheduled monument protected by Cadw under reference BR015. View the official record →

About this monument

Questions & answers

What is Castell Dinas?

Castell Dinas is a prehistoric hillfort situated in Breconshire, Wales, dating to the Iron Age period. It is designated a Scheduled Ancient Monument by Cadw under reference BR015.

What period does Castell Dinas date from?

Castell Dinas dates from the prehistoric period, and is classified as a hillfort. It is one of over 32,000 scheduled monuments protected across the UK.

Who is responsible for protecting Castell Dinas?

Castell Dinas is a Scheduled Ancient Monument, legally protected by Cadw — the body responsible for designating and safeguarding heritage sites in Wales. The official designation reference is BR015.

What other scheduled monuments are near Castell Dinas?

Several scheduled monuments lie within 10 km, including Standing Stone North of Tretower (8.2 km), Roman Fort at Pen y Gaer (8.2 km), Pen-y-gaer Roman Vicus, Cwmdu (8.3 km).

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