TASMANIA Fire Service crews have extinguished a devastating house fire at Gravelly Beach this morning.
The fire, which started inside the lounge room of a residence off Gravelly Beach Road, was reported shortly after 11am.
No-one was home at the time of the blaze.
Gravelly Beach Fire Brigade fourth officer Richard Goss estimated the damage caused was $50,000 to $60,000.
He said the remains of the house would be knocked down.
Authorities are investigating the cause of the fire.