I have just added this to the map of places to fly your drone at Drone Scene:
Land owner permission requirements unknown.
Mill was closed but car park open took of from waste land at rear of car park
Heckington Windmill is the only eight-sailed tower windmill still standing in the United Kingdom with its sails intact. Heckington is located between Sleaford and Boston in Lincolnshire, England
The originator declared that this location was not inside a Flight Restriction Zone at the time of being flown on 12/01/2022. It remains the responsibility of any pilot to check for any changes before flying at the same location.