History in Structure

This site is entirely user-supported. See how you can help.

Dolwyddelan Castle

A Grade I Listed Building in Dolwyddelan, Conwy

We don't have any photos of this building yet. Why don't you be the first to send us one?

Upload Photo »

Approximate Location Map
Large Map »


Latitude: 53.0529 / 53°3'10"N

Longitude: -3.9082 / 3°54'29"W

OS Eastings: 272194

OS Northings: 352329

OS Grid: SH721523

Mapcode National: GBR 5Z.CR3X

Mapcode Global: WH553.YJ3F

Plus Code: 9C5R333R+5P

Entry Name: Dolwyddelan Castle

Listing Date: 17 February 1997

Last Amended: 17 February 1997

Grade: I

Source: Cadw

Source ID: 18253

Building Class: Defence

Location: Strikingly located overlooking the modern road on a dramatic eminence 1.5km W of Dolwyddelan village.

County: Conwy

Community: Dolwyddelan

Community: Dolwyddelan

Locality: Dolwyddelan Castle

Traditional County: Caernarfonshire

Find accommodation in


Traditionally taken to be the birthplace of Llywelyn ap Iorweth ('Llywelyn the Great'), though this seems more likely to have been an earlier motte-based castle 'Tomen Castell', some 400m to the SE, probably erected by his father Iorwerth Dryndwn. Instead, it seems most probable that Llywelyn built the present castle, initially as a 2-storeyed keep between 1210 and 1240. Dolwyddelan became one of the chief seats of Llywelyn ap Gruffudd (d.1282), grandson of Llywelyn ap Iorwerth, and fell to the English under Edward I in January 1283. Following its capture the castle was re-armed and provided with a W tower, seemingly a 'camera', or solar. In August and September 1284 £7 11s 5d (£7.57p) was paid for repairs to 'diverse chambers', and between 1290 and 1292 Robert Belvoir, Chamberlain of North Wales, paid for various unspecified works. It is probable that Llywelyn's original keep was heightened at this stage. In 1488 Maredudd ab Ieuan ap Robert (subsequently of Gwydir and the founder of the Wynn dynasty) purchased the lease of Dolwyddelan from the executors of the Chamberlain of N. Wales, Sir Ralph Birkenhead. Maredudd consolidated the castle, described as being 'in part thereof habitable' and seems to have made some minor alterations and additions. Following the family's removal to Gwydir c1500 the castle seems to have been unoccupied; by the C18 both towers were ruinous and apparently the stone heavily plundered. Finally in 1848-50 Lord Willoughby de Eresby of Gwydir Castle undertook a major restoration programme which involved repairing the keep and adding a crenellated parapet.


Rectangular storied keep with fragmentary associated curtain walls and a much-ruined rectangular W tower; of local gritsone and slatestone rubble with gently-battered base on rock; renewed lead roof to keep. First-floor entrance to NW side of keep via stone-stepped external access; ruined base of former forebuilding. 4-centered, chamfered arched entrance with modern boarded door. To the R a shallow pointed-arched window with C19 iron grille; 2 similar windows to the corresponding SE face and a further, single window to each of the NW, SE and SW sides at second-floor level, that to the later square-headed. Wide garderobe projection to basement and first floors on SW side. The upper part of the tower is largely reconstructed and has slate-coped crenellations with 'arrow-slits' and a series of distinctive projecting mock slab drains below; projecting square turret at roof-level on NE corner with Tudor-arched slatestone lintels to openings.


2 large chambers, one to each floor, over a basement originally accessed via a trap door. The second-floor ceiling has not been restored, giving at present a double-height room which is deceptive; modern boarded floor and scant remains of orginal internal wall plaster. Wide lateral fireplace with projecting, corbelled breast and flat, depressed-arched slate lintel; this appears to have been partly restored. Wide, deep window splays with pointed inner arches. To the L of the fireplace, a window recess with L-shaped mural stair leading off from the L reveal. This may be an insertion of the late C15, though the presumed second floor entrance is lacking, presumably 'restored away' in the C19; access via this to roof level and battlements. Garderobe passage to SW side with latrine shute in the S corner, visible also externally; plain square-headed entrance to this.

Reasons for Listing

Listed Grade I as a Medieval Royal Welsh castle strongly associated with Llywelyn the Great and his descendants.

Scheduled Ancient Monument Cn40.

Recommended Books

Other nearby listed buildings

BritishListedBuildings.co.uk is an independent online resource and is not associated with any government department. All government data published here is used under licence. Please do not contact BritishListedBuildings.co.uk for any queries related to any individual listed building, planning permission related to listed buildings or the listing process itself.

British Listed Buildings is a Good Stuff website.