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Visitor Notice

Due to concerns over the spread of Coronavirus and the well-being of our visitors, this monument will be closed to the public until further notice. Please check the Cadw website for further updates.


Much fought-over seat of the kingdom of Deheubarth

Perched in a commanding hilltop position above the Tywi Valley, Dinefwr Castle occupies a similarly significant position in Welsh history. In the 12th century, the fortress was in the possession of The Lord Rhys, ruler of the ancient south Wales kingdom of Deheubarth. His reign saw a rare period of peace and stability that led to a flowering of Welsh culture, music and poetry.

Sadly, it was not to last. After Rhys’s death, conflicts over succession led to turbulent years as the Welsh princes fought amongst themselves and against the English. Dinefwr eventually fell into English control in 1287 and remained there for centuries, despite Owain Glyndŵr’s attempt to wrest it back during his uprising of 1403.



Charging car park icon No drones icon No smoking icon

The National Trust car park is currently open from Monday–Friday 11am–3pm | Sat–Sun 11am–5pm.

Free parking for Cadw members on production of valid membership cards. Non Cadw/NT members cost £5.

National Trust entrance fees apply for non-members. Up-to-date charges can be found here:

*Please note: there is currently no vehicular or disabled access to Dinefwr Castle.

Cadw do not allow drone flying from or over its guardianship sites, except by contractors commissioned for a specific purpose, who satisfy stringent CAA criteria, have the correct insurances and are operating under controlled conditions.

Smoking is not permitted.


By A483, A476, or B4300
Llandeilo 2.5km/1.5mls

Postcode SA19 6RT

For further information, please contact: Traveline Cymru on 0871 200 2233 or National Rail Enquiries on 08457 48 49 50.