When forces from Motala, Skänninge, Vadstena and Mjölby arrived at the scene, the house was overheated and could not be saved.
The rescue service decided to let the building burn to the ground under controlled conditions.
The extinguishing work has been going on all night until Thursday and is expected to be completed during the morning hours.
The police will conduct a technical investigation on the spot and have drawn up a report of arson, Corren reports.
No people came to harm.