I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission requirements unknown.
There may not be much left of Harbottle Castle, but it does give you something to fly over and get some arty footage/ stills…
There is free parking at W3W: ///bloodshot.approach.altitude
From the car park there is a footpath up to the castle, which is fortunate as the trees hide the castle from view.
The land may be access land, so it might be best to TOAL from the road.
You can get a reasonable starting view from W3W: ///lost.playback.escapades
Watch out for livestock.
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 01/08/2023. It remains the responsibility of any pilot to check for any changes before flying at the same location.