Police were called at approximately 5:15pm today, Thursday 6 July, following reports of a light aircraft crash in the grounds of Heveningham Hall.
Police, ambulance crew and Suffolk Fire and Rescue are all in attendance at the incident.
The pilot, a man, is being airlifted to hospital having sustained serious injuries. No one else was on board the plane.
At this stage it is believed the pilot was attempting to land the plane at the time of the incident.
An area of Heveningham Hall has been cordoned off while officers deal with the incident and the Air Accident Investigation Branch has been informed.