A 20-year-old climate activist who glued himself to a road in a protest lives with his parents in a lavish mansion, it has been revealed.

Extinction Rebellion protester Eric Serge Herbert has been arrested five times for his demonstrations, which included blocking the entrance to the Brisbane Magistrates Court and stopping traffic with a canoe on a road.

The former school captain was living in Sydney and studying nanoscience at the University of New South Wales before he dropped out and returned to his family home.

The 20-year-old climate change activist (left) who glued himself to the road lives with his parents in an emission-spewing five-bedroom mansion with an infinity pool

During his first court appearance, the climate activist told the magistrate he lived with his parents who supported him. Pictured: Family home

The waterfront five-bedroom, four-bathroom mansion in Pelican Waters on the Sunshine Coast also comes with a freestanding aquarium, vacuumaid, a triple lock garage and a private jetty

The waterfront five-bedroom, four-bathroom mansion in Pelican Waters on the Sunshine Coast also comes with a freestanding aquarium, vacuumaid, a triple lock garage and a private jetty, The Courier-Mail reported.

An average household in Australia emits 14 tonnes of carbon each year.

While it can be hard to determine the exact carbon footprint of a household it is widely accepted a larger house emits more.

Herbert has claimed on social media that he does not live with his parents, but during his first court appearance in June, the climate activist told the magistrate he lived with his parents who supported him.

Herbert denied living with his parents on social media but his court and bail documents list his parents' home as his place of residence.

His Instagram description makes note of his arrests, reading: 'Arrested five times in three weeks peacefully participating in civil disobedience'.

Herbert, who is unemployed, has been fined $2,050 and has stayed in the Brisbane watch house for several nights.

Extinction Rebellion protester Eric Serge Herbert has been arrested five times for his demonstrations, which included blocking the entrance to the Brisbane Magistrates Court and a bridge with a canoe

Herbert, who is a triplet and one of five children, went to Unity College, a Catholic and Uniting Church school in Caloundra on the Sunshine Coast

Herbert, who is a triplet and one of five children, went to Unity College, a Catholic and Uniting Church school in Caloundra on the Sunshine Coast.

His triplet sisters Elisha and Renee each have 1.4 million Instagram followers and contracts with Chadwick and Elite Models in Sydney and Los Angeles.

'Yeah, he lives in Sydney and studies science – he's super smart,' they told Husskie magazine in 2017 before their brother dropped out.

'He's not into [us being models and influencers] at all, he's so not about it. He doesn't let us take photos. We have like one photo of him.'

Herbert has become known as the face for the Extinction Rebellion and posts on social media in a bid to gather other protesters.

'I am truly sorry that this has to happen, I don't want to have to sacrifice my liberties or studies to do this but if not me then who? you? I don't want to disrupt your day but if we don't stand together we will die apart along with all other life on earth,' he posted on Facebook.

His triplet sisters Elisha and Renee each have 1.4 million Instagram followers and contracts with Chadwick and Elite Models in Sydney and Los Angeles

'The time is now. This is how we win. We must not go quietly into the night, we must rebel against being dead and the death of our loved ones. I do this with love for you, your children and all life on this earth.'

Herbert was fined $550 for gluing himself to a zebra crossing in Brisbane's CBD and causing three hours of traffic chaos on June 17.

He was then handed a $600 fine for blocking Victoria Bridge with a canoe on June 26.

The climate activist blocked the entry of the Brisbane Magistrates Court on July 11 and was fined $400 and had a conviction recorded. Four days later he blocked streets in the city and was fined $500.

On July 17, Herbert was arrested for public nuisance and was bailed.

He was banned from entering a five-kilometre radius of Queen St Mall and will return to court on July 31.