When three housemates remained, the Australian public decided which finalist would win the grand prize of $250,000.

The series was won by season 3 winner Reggie Sorensen, who defeated Johnson Ashak and Taras Hrubyj-Piper in the final public vote.

[7] The season was filmed at the White Pavilion in Sydney Olympic Park, the same location as Big Brother VIP, making it the first civilian season to be filmed in the new location, following the demolition of the previous house in January 2021.

[3][8] The finale was broadcast live from the Hordern Pavilion with all housemates in attendance – which will be the first time since moving to Seven that the show has reunited the full cast due to previous seasons having issues with COVID-19 restrictions in Sydney.

For the first time since the 2020 revival, significant additions were made to the Big Brother game structure.

[15] Ratings data is from OzTAM and represents the viewership from the 5 largest Australian metropolitan centres (Sydney, Melbourne, Brisbane, Perth and Adelaide).