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‹ Cof Cymru: National Historic Assets of Wales, Wales

Cof Cymru: National Historic Assets of Wales · Wales

Dolbadarn Castle

Llanberis, Gwynedd, Wales

The record

Designation
Listed building, Grade I
Broad class
Defence
Date of designation
28 May 1999
Locality
Pentre-castell
Community
Llanberis
Unitary authority
Gwynedd
Country
Wales
Coordinates
53.11652, -4.11415
Cadw reference
21854

Slide toward Today to fade the historical sheet and see the modern map underneath.

David Rumsey Map Collection, Stanford Libraries

Shown on 5 historical map sheets, the earliest the 1896 "Sheet 7. Ordnance Survey of England and Wales." (David Rumsey Map Collection, Stanford Libraries).

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This record in Cadw's own full report ↗

Cadw's description

Situated on a natural rock outcrop in a strategic position at the north-west end of Llyn Peris, the castle forms a prominent feature in the landscape.

Probably built by Llywelyn ap Iorweth (1173-1240) towards the end of his life, the castle was partly dismantled after the English conquest, some of the timber being taken to Caernarfon for use in the royal castle there in 1284. The curtain wall and outbuildings, of which only fragmentary ruins survive, post-date the keep and may have been added by the English. The castle has been painted by many artists, including Turner.

Castle keep. Circular plan surviving to about 14.5m in height. Regularly coursed and tightly-packed slate-stone slabs, now roofless. Original entrance on north-western side with steeply pointed arch approached by wide flight of C20 external steps; another steeply pointed arch directly above. A well-preserved lean-to garderobe tower projects to the left of the entrance and a series of narrow rectangular windows to the right indicates the position of the internal spiral staircase.

Interior is roofless; internal spiral staircase remains along with the remnants of 2 large fireplaces and empty sockets for joist and beam ends of the former floor structures.

Listed Grade I as a well-preserved example of a C13 native Welsh castle with circular shell keep.

Nearby in the register

Other entries of the same register within about three miles of this one, by straight line.

Designated Historic Asset GIS Data, The Welsh Historic Environment Service (Cadw), 2026-09-07, licensed under the Open Government Licence http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ Cadw, the Welsh Historic Environment Service · Open Government Licence v3.0
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