A St John spokeswoman said an ambulance and a manager vehicle were sent to the scene after the call at 11.18pm.
She said one person was taken to Middlemore Hospital in a moderate condition.
The house was "well-involved" in flames when the three fire crews arrived, FENZ said.
The incident happened a couple of hours after firefighters were sent to a property on the other side of town at Lilburn Crescent, in Massey, West Auckland.
Four fire trucks were sent to the scene just before 9pm, FENZ said.
Fire crews arrived to find the single-storey house "well-involved" in flames, a northern fire communications spokesman said. No injuries were reported.
A witness told the Herald he could see light grey smoke coming from all the windows and doors of the property.
"Members of the public and residents were on the street watching the blaze," he said.
Both fires are now out, he said, and fire investigators are expected to look into the circumstances of both incidents.