ARSON Squad detectives spent the day at a Wattle Grove house destroyed by fire last night.
Department of Fire and Emergency Services officers were called to the fire in Crystal Brook Road about 8.30pm on Monday, August 22.
No one was home at the time of the blaze.
Damage to the rural property house is estimated at $300,000.
Anyone who can help with this investigation can call Crime Stoppers on 1800 333 000 or make a report online at www.crimestopperswa.com.au