New images have captured the alleged chilling discovery police made in the house of a 20-year-old man, who is now facing charges of preparing to commit a terrorist act.

A 20-year-old man has been charged with preparing to commit a terrorist act after ASIO and police allegedly found a written a manifesto outlining plans for an ideologically motivated attack of violent extremism involving mass casualties.

The Western Australia Joint Counter Terrorism Team raided the Bindoon home of Jayson Joseph Michaels, 20, where he lived with his parents following an investigation by police and ASIO.

Australian Federal Police Superintendent Peter Hatch said police will allege in court Mr Michaels was motivated by online hate sites.

“It’s further alleged, the man detailed intentions to attack Muslim faith places of worship in WA, as well as WA Police Headquarters and Parliament House in WA,” he said.

Police allege Mr Michaels was motivated by “white supremacy ideology”.