Ten Housing New Zealand properties were damaged by out-of-control fires in Rotorua between late February and early November last year.
Reports and emails about the fires, released to the Rotorua Daily Post under the Official Information Act (OIA), show two of the 10 blazes were at the same Fordlands property.
According the Rotorua Lakes Council's spatial plan, Housing New Zealand has 500 properties in the district.
In a letter attached to the OIA documents, Housing New Zealand government relations manager Rachel Kelly said all of the tenanted properties involved in the 10 Rotorua fires had working smoke alarms.
"Housing New Zealand has had smoke alarms in all properties since 1999 and last year (2017) we completed an upgrade of the smoke alarms in all of our 64,000 properties."
The Fire and Emergency New Zealand (FENZ) incident report said a witness heard a loud noise, "then looked out the window and saw fire and shadows running away".
Investigators later deemed the fire arson.
Contractors found loose asbestos in the house, and in May, Housing New Zealand decided to demolish it.
Just four days after the Fordlands fire, the kitchen and ceiling of a three-bedroom home in Pukehangi caught fire when a pot of oil was left unattended on a kitchen stove.
FENZ's incident report found that smoke alarms woke up the occupants at 4.30am on February 27.
Ambulance staff examined the tenant and children but they did not need hospital treatment.
Asbestos was later detected and removed so the house could be refurbished.
At 6pm that same day, a four-bedroom home caught fire in Glenholme.
The Clinkard Ave property was vacant because of suspected meth contamination.
Callers told FENZ the fire was "going for it" before crews arrived.
Asbestos was found and removed from the flooring and the exterior of the house and neighbouring properties had to be checked for "exploded loose material".
The subsequent FENZ incident report stated unattended hot chips under the oven grill started the fire.
It was already burning the curtains and above the rangehood when the occupants saw the flames, and got out safely.
Then on September 14, a Housing New Zealand property in Miller St, Glenholme caught fire just before 3am.
Documents released under the OIA stated a tenant's friend was sleeping in the lounge and was hospitalised with leg burns after their blanket caught fire.
One person inside escaped uninjured, but the property was left with fire damage to the porch, fencing, and lounge and smoke damage throughout the house.
Contractors found asbestos scattered across the property and over one boundary.
FENZ could not determine the cause of the fire, but stated there was "some evidence of smoking around the area of origin".
Its incident report said the person inside the house was watching TV when they noticed smoke coming through the windows and called 111.