Police said an elderly woman lived at the house,and pet dogs found there were being cared for by paramedics.
A crime scene has been declared after a woman died in a house fire on Monday night.
Police and QFES staff pulled an overturned ute from the swollen Canungra Creek when the body of David Hornman was recovered.
The Department of Environment and Science was investigating the owners of the industrial shed,which contained a large number of tyres and chemical drums.
A Queensland woman who operated budget accommodation for backpackers has been fined again,having previously been penalised more than $70,000 for fire safety offences.
A Queensland Police spokeswoman said it appeared no one was inside.
Elite boarding school Marist College Ashgrove was evacuated after a fire broke out in the design and technology classrooms.
Peter Giles tried to sue QFES after he was traumatised by the"wailing and crying"of family and neighbours at the 2011 blaze,but a judge said he had"real doubts about his honesty".
More than 85,000 hectares - more than half of Fraser Island's total size - has been burnt since the fire began on October 14.
Happy Valley residents are counting their blessings that the only damage from a bushfire that came within metres of the small town on Monday was burnt leaves and ash.
Despite an evacuation order,50 Happy Valley residents stayed behind to defend the township with firefighters. The fire had reached the northern boundary by 1pm.