I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission not required.
I suggest to park in in Stockgrove Country Park and walk across the road. That area is outside the park and away from structures.
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 15/09/2020. It remains the responsibility of any pilot to check for any changes before flying at the same location.