Grand Designs Australia - Season 12

Locked out of Melbourne's soaring housing market, Matt and Kate move to Tasmania to build two Earthships with no building experience.

Following a cancer diagnosis, Gary and Lorilie set out to build a multi-million dollar multigenerational family home.

At Rye on the Mornington Peninsula, Ryan plans to build a unique home, with boulders in the living room, and his bedroom in a cave.

Acclaimed Australian architect Ed Lippmann discovers transforming his childhood home into a signature steel and glass showpiece may be the most daunting assignment of his storied career.

Builder Nick is hoping to build his wife Rachel the ultimate house in the idyllic Blue Mountains; a place that for the first time in her life, she can finally call home.

Richard Rowles plans to live with climate change, by building a flood proof house on the banks of the volatile Brisbane River.

Psychologist Paul North has employed his son Josh to take on the unique task of building a bullet proof earth berm house, deep in Victoria's Yass Valley, to protect them from bushfires and the extremes of climate change.

Richard and Erin Sims start out building a farm-style lodge, however it balloons into a building of epic proportions, complete with three 'wings', seven-metre-high chimneys, and thousands of hand-picked dolerite stones.

Rita and James have just 230 thousand dollars to self-build a sustainable, off-grid family home for themselves and their two kids. They plan to use recycled plastic bags, milk cartons, home-made bricks, and an earthen floor.

In Yarraville, Victoria, a passive house builder starts a crusade to build the healthiest home in Australia on the site of an old pigeon club house!