I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission requirements unknown.
Stanmer was once a village with a few houses, church and a country house built in 1722. It is now incorporated into the northern part of Brighton on the edge of Sussex University. The park is over 5000 acres with loads of space to fly and explore.
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 09/06/2024. It remains the responsibility of any pilot to check for any changes before flying at the same location.