Dyffryn House will reopen for the first time since its multi-million pound restoration. The historic house has never been fully opened to the public before, but today visitors will be able to explore its restored rooms for the first time.
Rooms on the ground and first floor will be open to allow visitors to enjoy views of the garden.
In January, the National Trust took over management of the house and gardens on a 50-year lease.
More top news
A dry night across Wales, but it will quickly turn cold this evening with a widespread frost forming, locally severe.
Eight people were left stranded on a ride at Cardiff's Winter Wonderland for 40 minutes yesterday after a mechanical malfunction.
The woman who was raped by Ched Evans has been forced to move house five times since being identified on Twitter, her father has said.