A multi-million dollar luxury riverside home on Noosa Parade was gutted by fire on Monday morning.
Firefighters were called to the two-storey house about 10.30am by passersby who noticed smoke billowing from the building.
The occupants of the house, thought to be vacationing or staying temporarily, were not at home at the time.
Noosa Queensland Fire and Emergency Service inspector Matt Swainson said the house was completely engulfed in flames when firefighters arrived.
He said five appliances and 17 firefighters attended from Noosa, Tewantin, Coolum and Cooroy fire stations.
Firefighters, many wearing breathing apparatus, worked to extinguish the fire and were able to protect neighbouring properties that were under threat from the fire spreading.
Inspector Swainson said no one was injured in the blaze.
He said firefighters would inspect to property to work out the cause of the fire and determine if any further investigation was required.
Police shut down Noosa Parade to traffic in both directions to enable firefighters to carry out their duties and Queensland Ambulance Service was onsite but said an officer said no one had required medical assistance.
