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A £10 million revamp of Caerphilly Castle, which will see a brand new visitor centre, cafe, toilets, and education room, is currently underway.

The project, which is expected to take three years, is set to be completed by summer 2026 – with the castle remaining at least partially open during the renovation works.

It is part of Cadw’s five-year “masterplan”, which was announced in 2019, to improve the 13th century Grade I listed castle.

Plans, which were submitted to Caerphilly County Borough Council by Cadw in 2021, said the revamp would cost £5 million – but this figure has since doubled.

A spokesperson for Cadw explained to Caerphilly Observer that a combination of rising costs and the project being expanded has contributed to this.

They said: “Planning for the project started pre-Covid and before the full conservation assessments had been completed. Costs have risen since then. 

“We have also expanded the project to include exciting new works like opening out the historic watergate for public access, installation of a new wildflower garden and a play area that will add to the overall visitor experience.”

Also included in the revamp is the refurbishment of the Great Hall, the installation of visitor access paths, ramps, and new information signage.

Dr Kate Roberts, Cadw’s chief inspector of historic monuments and buildings, said: “Caerphilly Castle is one of Wales’ most impressive historical landmarks with a rich past – it’s seen many sieges and battles and played an important role in the downfall of King Edward II.

“Our aim is to conserve this unique historic place – the first truly concentric castle in Wales and to transform the experience for the thousands of visitors that enjoy the attraction each year.”

Dr Roberts continued: “We’re working closely with Caerphilly Council and other key stakeholders within the Caerphilly 2035 strategy to shape the town as an attractive place to live, work and invest, and to make the castle one of Wales’ biggest heritage attractions for us all to keep in years to come.”