Investigators made a public appeal on Monday for anyone with CCTV or dash cam footage who might have been in the Forest Hills area in the early hours of Sunday morning.

The Daintree Circuit home erupted in flames about 5am on Sunday and quickly spread.

Fire and Rescue NSW crews backed the RFS to extinguish the blaze but there was little they could do to save the brick home from the flames that had engulfed almost every corner.

READ ALSO:

Firefighters said the blaze had taken hold of about 90 per cent of the home, but the roof caved in with the intense fire and heat, and the smoke and water damage had all but destroyed the home.

Police tape was still strewn across the front of the yard on Monday, as investigations continue into the cause of the fire.

Crews have been told the residents were away on holidays at the time of the fire, and no one was home.

Oxley Detective Acting Inspector Jason Darcy said forensic crews had combed the scene on Sunday as they investigate what sparked it.

"Police are currently investigating the cause of the fire and forensic police have examined the scene as part of their investigations," he told the Leader.

"Detectives are continuing to follow that and we are making a public appeal for information.

"We're specifically appealing for people along those roads in and around that area who have CCTV at their homes or dash cams to come forward."

The cause of the fire is under investigation.

Want more crime and court stories? Support the local news that keeps you informed - subscribe today