Scheduled MonumentsWalesCastell Rhuddlan
Medieval · Castle

Castell Rhuddlan

Flintshire, Wales
Cadw SAM FL004
Period
Medieval
Site type
Castle
Broad class
Defence
Nation
Wales
Boundary

Scheduled area

© Mapbox · © OpenStreetMap contributors · Boundary data © Cadw

Overview

History & significance

Castell Rhuddlan is a medieval castle occupying a strategic position near the River Clwyd in Flintshire, North Wales. The castle was founded by Edward I in 1277 as part of his campaign to consolidate English control over Wales, and its diamond-shaped plan with corner towers represents a sophisticated military design of the late thirteenth century. The fortress served as an important administrative and military centre during the medieval period, controlling the approaches to the Vale of Clwyd. The substantial remains visible today, including parts of the inner and outer wards with their defensive towers, preserve evidence of this significant royal fortress from the Edwardian conquest period.

Castell Rhuddlan is a scheduled monument protected by Cadw under reference FL004. View the official record →

About this monument

Questions & answers

What is Castell Rhuddlan?

Castell Rhuddlan is a medieval castle occupying a strategic position near the River Clwyd in Flintshire, North Wales. It is designated a Scheduled Ancient Monument by Cadw under reference FL004.

What period does Castell Rhuddlan date from?

Castell Rhuddlan dates from the medieval period, and is classified as a castle. It is one of over 32,000 scheduled monuments protected across the UK.

Who is responsible for protecting Castell Rhuddlan?

Castell Rhuddlan 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 FL004.

What other scheduled monuments are near Castell Rhuddlan?

Several scheduled monuments lie within 10 km, including St Asaph Bridge (3.9 km), Tyddyn Bleiddyn Burial Chamber (5.8 km), Bedd-y-Cawr Hillfort (6 km).

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Everything a full report reveals about Castell Rhuddlan

This page is just one thread. A full Aubrey report pulls together 13 strands of Castell Rhuddlan's history, each drawn from the record and mapped to the exact spot:

Overview
An interactive map of the location with every monument and battle plotted, and a plain-language history built only from what the record holds.
Monuments
The legally protected scheduled monuments around the location, each with its period, type and significance.
Battlefields
The battles and sieges fought on this ground, mapped and set on a timeline of the wider conflict.
Roman Britain
The Roman roads, forts and towns near here, and the Iron Age people who held the land before Rome arrived.
Civil War
The Civil War fighting, garrisons and recorded militaria in this area, woven into the arc of 1642 to 1651.
Geology
The bedrock beneath the site, its age and rock type, reaching back hundreds of millions of years.
Local Names
What the street and field names around here actually mean, and the history buried inside them.
Historical Maps
Ordnance Survey maps from the 1800s, layered over the location as it stands today.
Literature
The books, county histories, charters and archives that mention this place, quoted with their sources.
Legal
The protected sites nearby and the metal-detecting, access and treasure laws that apply to this ground.
Spotlight
A deep dive into the most remarkable, lesser-known history of the place, traced back to the record.
Target Zones
For detectorists: the most promising ground to search nearby, ranked by confidence, with what to expect.
Timeline
The whole story of the location told era by era, from prehistory to the present day.
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The ground beneath

The bedrock under Castell Rhuddlan

Castell Rhuddlan stands on Permian Rocks (Undifferentiated), bedrock that formed in the Permian. The rock here is sandstone and conglomerate, interbedded.