Adrian Portelli unveils shock new business venture after quitting The Block... following Phillip Island property spending spree

The Block serial buyer Adrian 'Mr Lambo' Portelli has teased his next business venture after quitting the Nine hit.

The billionaire businessman, 35, took to Instagram over the weekend to reveal he was considering opening his own chain of petrol stations after a fan told him 7-Eleven had run out of stock of Portelli's own energy drink.

'This is why I've always said you can't rely on people to help build your business. LMCT+ Petrol Stations?' he asked, referring to the name of his business.

The post was captured by influencer watchdog influencer.updates.au.

It comes just hours after Portelli took fans inside his lavish Melbourne mansion.

The father-of-one took to Instagram Stories on the weekend with a sneak peek inside his lavish pad which featured a sprawling entertainment area.

A mezzanine overlooked the wide open space which was filled with modern designer furniture and floor-to-ceiling windows overlooking the backyard.

As the entrepreneur gave a tour of his home, his partner Karlie Butler and their 11-month-old son Mercy could be seen enjoying time in the expansive room.

Adrian then took a step outside as music played throughout the house, showing off his alfresco dining and living area in the undercover patio.

A crystal blue swimming pool sat off to the side, with Adrian panning the camera over to it as he stepped on the sun soaked grass.

The massive yard was covered on all sides by a large white fence and towering palm trees to give the Portelli family complete privacy.

It comes after reports that Adrian is now in talks to receive his own TV show that will rival renovation reality series The Block.

Adrian made history on the Nine show last week when he dropped a staggering $15.03million on all five Phillip Island properties.

He then revealed that 2024 would be the last year he makes an appearance on The Block after attending the auction for three years in a row.

Insiders have now said the billionaire is in discussion with Nine's network rivals about getting his own show.

'He could easily produce and host a renovation type show of his very own,' a TV network source told New Idea on Saturday.

Among the formats being discussed is a reality show 'similar' to Channel Seven 's Dream Home hosted by Chris Brown, claimed the insider.

The source added that Adrian's LMCT+ giveaway business was 'built' for television.

'He is TV's magic man right now and will be in hot demand as networks look to bolster their lineups for the new year,' they said.

According to the source, Channel 10 are looking to launch a brand new life style show, while Seven may wish to revamp Dream Home.

And the insider says that Adrian would be ideal casting for both networks.

'Adrian is a very smart businessman and in the coming months he'll likely be entering negotiations with all major TV networks to secure something big,' the source said.

They continued: 'He has a brilliant eye and understanding of what audiences and Australian's want and so he's a very valuable talent.'