The Springvale blaze broke out two hours later and crews from Alexandra, Clyde and Omakau and a council tanker from Dunstan were needed to fight the fire. The unoccupied home was well ablaze when firefighters arrived and could not be saved.
The Christchurch fire, which broke out around 7.30pm, was confined to the laundry area.
Nobody was home at the Linwood property but smoke damaged the remainder of the single-storey house.