Police will investigate a fire which destroyed a home in Donnybrook overnight, 210km south of Perth.
Firefighters were called to Yalverton Street about 11.30pm, arriving to find the house "fully involved".
Crews from Donnybrook and Bunbury could do little to stop the blaze gutting the property.
It is understood no-one was inside.
A Department of Fire and Emergency Services spokesman said it left a damage bill of about $200,000.
He said the cause of the fire was undetermined and would be the subject of a joint police and DFES investigation this morning.Anyone with information is asked to call Crime Stoppers on 1800 333 000.