Caerphilly Castle, Wales’ largest fortress, is being transformed to enhance its status as a world-class heritage attraction, through a programme of vital conservation and development work. It is due to be completed by Summer 2026.

Plans include:

  • a brand new visitor centre will be built within the castle grounds, to include: visitor welcome and ticketing, catering facilities, toilets, and a room for educational use;
  • the existing shop will be fully refurbished
  • access to paths across the castle grounds will be improved, allowing wheelchair users to enjoy even more historic adventures.

Central to the project is a £1m investment in historic interpretation at the site, using cutting-edge digital techniques to tell the stories of the men and women who built and lived in the castle.

The Great Hall is also getting a majestic medieval makeover. Restoring the UK’s largest Great Hall of its period will be no mean feat ― but once complete, it will recreate the ambience and grandeur of its 13th century heyday.

View of the castle from the gate
Inside a banqueting hall in a castle.

Entrance into the castle with views of the shop; and the Great Hall

Find out more information on Caerphilly’s Castle’s renovation project.

In the meantime you can still include Caerphilly Castle in your itineraries.

Register with the Cadw Tour Operator Scheme (CTOS) to become a member of Cadw’s online group booking scheme. Members benefit from preferential trade rates and discounts, complimentary admission for your tour leader, complimentary introductions to Cadw monuments, enhanced information for existing tours and invoicing following your visit. Travel Trade Explorer Passes can also be purchased. Please contact

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