I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission requirements unknown.
Great Coxwell Barn is managed by NT, as such, TOAL an landing was performed outside the NT boundary.
Once part of a large 13th century grange, Great Barn in Great Coxwell is all that survives of the site that provided funds to Beaulieu Abbey in Hampshire. The original grange would have included a windmill, pig farm and dairy herd.
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 26/09/2021. It remains the responsibility of any pilot to check for any changes before flying at the same location.