I have just added this to the map of places to fly your drone at Drone Scene:
Tretower Castle is a Grade I-listed ruined castle in the village of Tretower in the county of Powys, Wales. It was built around the beginning of the twelfth century as a motte and bailey castle, enlarged in the early thirteenth century, but later fell into ruin.
This monumental tower with four storeys and stone walls nine feet thick is roughly triangular in plan, with the motte and keep occupying the western corner. The 12th century shell-keep is an irregular enclosure with a gate-tower on the line of approach from the bailey. In the centre of the shell stands the tall cylindrical 13th century keep. The keep is of three storeys, with an original entrance at first floor level
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 10/04/2025. It remains the responsibility of any pilot to check for any changes before flying at the same location. Landowner permission may be required before taking off.