POLICE say investigations into the fire that destroyed a Clear Lake home are ongoing.
Tim Shaw and Kirstie Rogers, and their children Eli, Alex and Evie, were left homeless when a fire engulfed their family home last month.
Mr Shaw believes a build up of fairy grass in the area and underneath his house contributed to the fire.
Horsham Police Criminal Investigation Unit Senior Constable Nathaniel Warren said police were still investigating the cause.
"At this point, it will most likely be deemed an unexplained fire with an unclear cause," he said.
"If people do have any information or witness accounts, they can contact Horsham CIU on 5382 9200."
Mr Shaw said a person brought an excavator to his property the day after the fire; they demolished all remaining structures and piled up the rubble.
He said the person did so under no council or Country Fire Authority order.
"It left us without a chance to recover anything that might have survived the fire, especially any of my son Blake's possessions and records," he said.
"The police had asked us if there was an area we wanted left untouched, and we explained in detail where his stuff was and he recorded it down to be left untouched."
Mr Shaw said Horsham Rural City Council was investigating who did the excavating.
He said the council had informed his family that no building permits would be approved for the affected areas until Park Victoria or the Department of Environment, Land, Water and Planning took action to control the fairy grass.
After the fire, Clear Lake resident Craig Giggins sent a letter to the office of Emergency Minister Lisa Neville to make her aware of the fairy grass situation.
"The build up of fairy grass happens most years due to the lack of water in the lake. For years now this community has wrangled with Parks Victoria and other departments to effectively manage this invasive grass," he said in the letter.
"But year after year we are brushed off by management of the Horsham office of Parks Victoria and others who each claim it's the others' problem.
"We will no longer listen to excuses from departments and promises of help that never eventuate. We want action now. Why does it take a tragedy to make people sit up and listen?"
Mr Giggins received a phone call from DELWP last week. He said DELWP was planning to undertake burn offs of the lake in both autumn and spring this year.
Mr Giggins also said DELWP did not mention Parks Victoria once during the conversation, even though the lake is its responsibility.
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