[2] It is situated within the Brecon Beacons National Park and is now in the care of Cadw, the Welsh Government historic environment service.

[4] A range of apartments on the east side of the inner court, or ward, includes a hall, kitchens, chapel, and the so-called 'King's Chamber'.

This chamber has a well-carved stone fireplace, and traceried windows, one facing into the courtyard, the other outwards commanding impressive views to the south.

A large threshing barn has been converted to tearooms and a shop, whilst the majority of the farm buildings, around a traditional farmyard, retain their agricultural purposes.

The Carreg Cennen Disturbance, a zone of ancient geological faults and folds stretching from Pembrokeshire to Shropshire, gains its name from this location where it is most impressively revealed.

The rocky outcrop on which the castle is perched is an isolated block of Carboniferous Limestone trapped within two faults which form a part of the disturbance.

[10] In 1283 Edward I granted the castle to John Giffard, the commander of the English troops at Cilmeri where Llywelyn ap Gruffudd was killed.

The lack of royal accounts and King Edward's decision not to visit the castle during his tour of Wales in 1284 imply that the Giffard family was responsible for funding the building work.

[9] Rhys ap Maredudd briefly captured Carreg Cennen during a rebellion against English rule in 1287, although he did not retain control of the castle for long.

[9] In early July 1403 Owain Glyndŵr, together with 800 men, attacked Carreg Cennen, but, although inflicting severe damage to the walls, failed to take the castle.

[9] By the mid-fifteenth century, the castle's custodian was Gruffudd ap Nicolas and Carreg Cennen became a Lancastrian stronghold during the Wars of the Roses.

Today, the castle remains privately owned by Margaret and Bernard Llewellyn, daughter and son in law of the late Mr. Gwilim Morris.