Castles · South Wales
Castell Arnallt
In or near Raglan.
Castell Arnallt — possible castle in Monmouthshire.

Wikimedia Commons contributors — see linked file page for photographer and licence licence
Plan your visit
- Typical visit
- 1.5 h–3 h
- Nearest railway station
- Abergavenny · 3.9 km
- Family-friendly
- Limited wheelchair access
Getting there & planning your visit
To visit Castell Arnallt, the nearest railway station is Abergavenny, located approximately 3.9 km away. The postcode for your sat-nav is NP7 9BY. Please note that wheelchair accessibility is limited.
About
Castell Arnallt is a castle in the United Kingdom — fortified architecture from the medieval, Tudor, or Victorian-revival period. Heritage designation: scheduled monument. Wikidata describes it as: "possible castle in Monmouthshire". Coordinates: 51.7846°, -2.9881°.
Photo gallery
Protected designations
- Site of Special Scientific Interest: River Wye SSSI
Designations sourced from Natural England open data under OGL v3.
From the Wikipedia article
The site of Castell Arnallt, sometimes known as Castle Arnold, is located near the village of Llanover in the Usk valley of Monmouthshire, Wales, some 4 miles (6.4 km) south east of Abergavenny. It was the fortified court house, or llys, of Seisyll ap Dyfnwal, lord of Over Gwent or Gwent Uwchcoed, before it was destroyed after Seisyll and some of his household were killed at Abergavenny Castle by William de Braose in 1175. The land is now in agricultural use, with no remains visible.
Excerpt from Wikipedia under CC BY-SA 4.0. See the source article linked in Sources below.
Background
Description
All that remains of the castle is a large, oblong mound. It sits in pasture land used for grazing, on the edge of the flood plain of the River Usk. There are two enclosures, one on top of the mound and one its western side. It appears, from examination of the mound, that there may be structures, a gate, and masonry walls below the surface, built over a period of time. It is believed to have been a llys, or royal court, used for administrative purposes and built prior to 1175. It was considered likely to have been built without a motte, relying on natural formations.
Sourced from Wikipedia under CC BY-SA 4.0.
- Coordinates
- 51.7846, -2.9881
- District
- Monmouthshire
- Parish
- Goetre Fawr
- Postcode
- NP7 9BY
- Parliamentary constituency
- Monmouthshire
- Nearest railway station
- Abergavenny — 3.9 km
Sources
- wikidata: Q5049668 (CC0)
- wikipedia: Castell Arnallt (CC BY-SA 4.0)
- commons: Site of Castle Arnold - geograph.org.uk - 1288672.jpg (CC BY-SA 4.0)
Other places nearby

Castle Arnold
Castles · 0.1 km

Pen-pergwm
Villages · 0.4 km

Hall Monument
Memorials & monuments · 0.6 km

Llangattock Court
Gardens · 1.4 km

Llangattock nigh Usk
Villages · 1.5 km

Llanover House
Castles · 1.7 km

Llanellen Bridge
Historic bridges · 1.7 km

Parish Church of St Helen
Historic churches · 1.8 km

Bridge No. 84 Monmouthshire and Brecon Canal
Historic bridges · 1.9 km

Barn Bridge ( Canal Bridge no 89 )
Historic bridges · 1.9 km

Llanellen
Villages · 1.9 km

Bridge No. 83 Monmouthshire and Brecon Canal
Historic bridges · 1.9 km
Nearby
Memorials & monuments · South Wales
Hall Monument
Hall Monument — Grade II listed building-listed memorial in wales-south, United Kingdom.
Gardens · South Wales
Llangattock Court
Llangattock Court — a garden in wales-south, United Kingdom.
Where to eat & stay near Castell Arnallt
Places to stay
Hotels · South Wales
Abergavenny Hotel
Abergavenny Hotel — a hotel in wales south.
Hotels · South Wales
Kings Arms Hotel
Kings Arms Hotel — a hotel in wales south.
Campsites · South Wales
Pont Kemys Caravan & Camping Park
Pont Kemys Caravan & Camping Park — a campsite in wales south.
Places to eat & drink

Restaurants · South Wales
The Walnut Tree
The Walnut Tree — a restaurant in wales south.

Restaurants · South Wales
Little Crown
Little Crown — a restaurant in wales south.
📷 5Historic pubs · South Wales
Skirrid Mountain Inn
Skirrid Mountain Inn — Historic pub — listed building or notable heritage status.
📷 3More castles in this region
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Caerphilly Castle
Caerphilly Castle — castle in Caerphilly, Wales.
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Abergavenny Castle
Abergavenny Castle — Grade I listed building in Abergavenny. Ruined castle in the market town of Abergavenny, Monmouthshire, Wales.
📷 3
📷 3Castles · South Wales
Allt y Gaer
Allt y Gaer — Site of Special Scientific Interest in Wales.
Frequently asked questions
- Where is Castell Arnallt?
- Castell Arnallt is in South Wales, United Kingdom (postcode NP7 9BY), in the parish of Goetre Fawr.
- What is Castell Arnallt?
- Castell Arnallt — possible castle in Monmouthshire.
- How do I get to Castell Arnallt?
- The nearest railway station is Abergavenny, about 3.9 km away. Drivers can use postcode NP7 9BY.
- Is Castell Arnallt a listed building?
- Castell Arnallt is officially recognised as scheduled monument listed.
- Is Castell Arnallt a protected site?
- Yes — Castell Arnallt is part of the River Wye SSSI Site of Special Scientific Interest.
- Does Castell Arnallt charge admission?
- Castell Arnallt typically charges admission. Check the official site for current ticket prices and opening hours.
- How do I get to Castell Arnallt?
- The nearest railway station is Abergavenny, about 3.9 km away. Drivers can navigate to postcode NP7 9BY.