I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission requirements unknown.
You can access the playing fields from Goals Northampton car park . You can walk from the car park to the playing fields their are no fences.
You have to pick your time carefully as a school is nearby.
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 25/07/2022. It remains the responsibility of any pilot to check for any changes before flying at the same location.