Detective Senior Sergeant Mike Hayward, of Counties Manukau West CIB, said police and firefighters attended the incident, and an investigation had since begun.
“Police are working to establish what has occurred and will remain on scene.”
In an update this afternoon, he said a scene examination was carried out today alongside a fire investigator.
“We are continuing to work through our formal identification procedures, with a post-mortem examination also set to take place tomorrow.
“Given these inquiries remain in the early stages, we are continuing to treat the circumstances as unexplained.”
Fire and Emergency assistant commander Chris Delfos said the shed appeared to be a sleepout.
“Crews arrived and were faced with a well-involved, medium-sized shed,” he said outside the burned Tamaki Ave property.
“We did not have any indication that there were persons trapped in the building, and while the crews were extinguishing the fire, they unfortunately found the deceased.”
He urged people to check their smoke alarms and make sure they had an escape plan “so these sort of things don’t happen”.
“Seems like it was the assistant that was in the sleepout because she was the one who was around in the weekend.”
Ravin said it was “devastating” that someone had lost their life in the incident.
Ravin, 48, said a woman stayed in the sleepout. Photo / Anna Heath.
Another neighbour, Milika Pikula, 67, said she knew the owner well, but wasn’t aware that another woman was living in the sleepout.
Pikula said she went to church at 7pm and returned home to police and two fire trucks in the area.
“I haven’t seen fire or smoke ... the police said they found a body.”
Milika Pikula returned from church to find emergency services at the scene. Photo / Anna Heath
Fire and Emergency northern shift manager Garreth Lewis said multiple calls were received just before 9pm about the fire, and two crews were sent to the scene.
Just after 11pm, crews were then called to another house fire in Panmure, east Auckland.
They arrived to find the 120sq m house well alight.
The Panmure house was destroyed in the blaze, which was reported around 11pm. Photo / Hayden Woodward
Photos from the scene show a brick-and-tile single-storey house with the entire roof on fire. The blaze eventually gutted the home.
A Herald photographer said that, as crews battled the Panmure blaze, one of the occupants tried to run back into the house but was stopped.