INVESTIGATIONS are underway to determine whether a lightning strike started a fire that destroyed a granny flat north of Kyogle overnight.
Inspector Bill McKenna of Lismore police said police and fire fighters from Kyogle and Green Pigeon brigades were called to a property on Horseshoe Creek Rd about 9pm.
Insp McKenna said residents of the property went out yesterday afternoon and when they returned they found the 10 by 10 metre detached, self contained granny flat well alight.
"The fire was burning toward the rear edge of a home and started to melt the paint on the house," he said.
"The resident attempted to extinguish the fire and then called 000."
Insp McKenna said the granny flat, which was adjacent to the main residence on the property, was not being used as a residential building, but was used for storage.
Police and Rural Fire Service investigators are on the scene today investigating the cause of the blaze.
Insp McKenna said a severe storm passed through the area late yesterday afternoon and investigators will try to determine whether lightning started the blaze.
Police are not treating the fire as suspicious.
Update your news preferences and get the latest news delivered to your inbox.