About 5:15am this morning, Police were called to the residence in Osmington.
Reverend Sarah MacPherson of the Anglican Augusta-Margaret River parish says St John the Evangelist church on Osmington Road is open for anyone who would like to come for prayer.
Next of kin have not yet been notified - authorities are attempting to locate family members and friends.
It is understood detectives from the major crime squad are travelling to Margaret River from Perth this morning.
"There's a priority to these investigations so we'll immediately concentrate on the actual scene itself and, as matters are further investigated, naturally, we would be asking for anyone that does know anything about this matter to contact police", he said.
"There was nothing much I could tell them", said the semi-retired farmer.
Mr Dawson said: 'The reason police went to the property was from a telephone call which we've recorded'.