A VACANT Waverley house was deliberately set alight on Tuesday night.
The house on Yarloop Street was targeted by an arsonist about 8pm, fire investigators have determined.
No one was inside at the time.
The fire started in one room and quick work from firefighters was able to contain the damage bill to $10,000.
Launceston CIB has taken over the investigation.
Anyone with information should call police on 131 444.