POLICE found a stockpile of homemade explosives and chemicals in a house after receiving a tip-off a man had been posting images on Facebook.

Now experts could be detonating explosives found riddled throughout the Rochedale South home for days.

Police raided the house after a tip-off that the man renting the property had posted pictures of explosives on Facebook.

Chief Superintendent Noel Powers says officers found large amounts of highly explosive chemicals and compounds, bullet casings, spent munitions and an inert training grenade.

There’s also evidence that drugs and explosives were being manufactured there.

The man, 32, had also been fossicking around restricted military ranges.

Chief Supt Powers says the man wasn’t planning to attack any person or organisation, isn’t part of any terrorist group and has no link to the upcoming G20 leader’s forum.

“He’s probably not an avid bomb maker, just someone with an unhealthy curiosity with explosives, combined with a limited knowledge of chemistry, or perhaps a more than average knowledge in chemistry,” he said.

“He’s been posting certain images and comments on Facebook that has come to our attention, thank god, and we’ve been able to action it from there,” he said.

“When they (the police) entered the premises they found -- in addition to a number of drugs -- a number of homemade explosives, a number of concoctions which had the propensity to explode and (they) had no option but to declare an emergency situation and have the scene contained.”

He said it appeared the man, who was renting the property with another male friend, had “probably been experimenting a little bit”.

There was no indication what the chemicals, which were scattered throughout the house, were being stockpiled for.

“There are a number of concoctions, a number of mixtures put together,” he said.

“There is no real explosives per say. There is a number of spent ammunition, old casings and old bullets found, there was an inert training grenade but that is totally safe.”

He said the man had a “unhealthy curiosity” in explosives, however it was not clear how he acquired the knowledge.

Acting Chief Superintendent Powers said the process of going through the house was expected to take a number of days.

“There’s still ongoing analysis of the chemicals in the house,” he said,

“This is what is going to lengthen it out - taking time to analyse what is there, analysing what propensity it has got for damage or harm, and this is a long and painful process we need to go (through).”

While saying they are “all dangerous,” he couldn’t comment on the potential for damage or harm.

“This is happening right beside people who are going about their daily lives... The potential there, I can’t really say.”

The street is expected to be in lockdown for several days as authorities destroy homemade bombs found on the property.

Police carried out one detonation and are expected to carry out more today.

Residents have been told they are likely to hear explosive noises and are advised to remain indoors.

A man who lives at the house, located in Rochedale South, has been taken into custody and has been charged.

The 32-year-old was charged with numerous offences including manufacturing explosives without authority, failure to correctly store explosives and two counts of unlawfully possessing weapons.

He has been remanded in custody and is due to appear in the Beenleigh Magistrates court on Monday.

Police said another man living at the house is assisting with their investigation.

Police quickly ruled out any link to terrorism or this week’s G20 Summit.

Detective Inspector Christopher Jory said explosive devices and equipment to make bombs were found at a property on Kallista Rd.

They declared an emergent situation under the Public Safety Preservation Act and people nearby were evacuated.

The Explosives Ordnance Response Team will go through the residence to clear the scene.

Officers are expected to start detonating the explosive substances from early Sunday morning.

Residents have been warned it’s likely they will hear explosive noises and should stay indoors.

The substances are still being assessed by expert police and they may be “too volatile” to be moved and will have to be detonated on site.

“We’ll be here for several days,” Det Insp Jory said.

“We are aware there are a number of explosives within the premises.

“(The police’s role) is to safely dispose of what’s found in those premises to ensure the safety of the people in the surrounding residences,” Det Insp Jory said.

Kallista Road, Rochedale South

Resident Kev Harris said he was awoken by the noise of a controlled explosion about midnight.

“There was one in the middle of the night and one earlier this morning,” he said.

“The windows actually rattled this morning”.

He said he had no clue as to who lived in the house.

“Bang all of a sudden the police were there (yesterday) - heaps of people,” he said.

“The police knocked on the door (and they) said someone in there has been storing explosives and hand grenades.”

“They asked us to stay home.”

Police said they were seeking accommodation for five families that lived in the area.

Other nearby residents will be advised by police before the explosives are destroyed.

About 250m of Kallista Rd was blocked by police on Saturday and cars were turned away.

Police arrived at the property just after 4pm Saturday as part of an ongoing investigation and executed a search warrant.

“There is no evidence to suggest this matter is G20 related. It was a routine investigation that has escalated to this today,” Det Insp Jory said.

Army personnel were on the scene last night, as were ambulance officers, firefighters and members of the police dog squad.

Craig Brown, 39, who has lived in the area for five years, said it was usually a quiet suburb.

“It’s not a good look. It’s a bit scary. It’s not something you want to hear about in a nice friendly neighbourhood,” Mr Brown said.

“Usually the worst thing is a few burnouts around the place but that’s about it.

“Other than that, it’s a beautiful place to live.”