The Block premieres Sunday, August 4, at 7pm on Nine

The Block will be returning in 2019 for an incredible 15th season on Sunday August 4, at 7pm on Nine.

Five new, ambitious couples will tackle the biggest Block to date — renovating the neglected Oslo Hotel in St Kilda into five top-end, three-story homes.

The couples chosen for The Block 2019 from more than 45,000 entries are:

Tess (28) and Luke (30) – Media sales partner and carpenter from Cairns, Queensland

El’ise (33) and Matt (39) – Fashion manager and carpenter from Perth, Western Australia

Jesse (29) and Mel (31) – Real estate agent and contracts administrator from Melbourne, Victoria

Mitch (56) and Mark (57) – Stylish grandads from Sydney, New South Wales

Andy (48) and Deb (46) – Stand-up comedian and homewares store owner from Wallabi Point, New South Wales

Block host Scott Cam will again be joined by co-host Shelley Craft. Overseeing the renovations will be site foremen Keith and Dan, with the weekly room reveals judged by Neale Whitaker, Shaynna Blaze and Darren Palmer.

The Block is officially Australia's richest reality program. It has distributed an astronomical cash total of $20,775,501 to contestants since premiering on Channel Nine in 2003.