A devastating fire has ripped through a home in Coburg, Victoria - one of Grand Designs Australia's latest projects.
The blaze destroyed the house which was under construction and currently being filmed as part of the new series.
The show's host, Peter Maddison, sent his sympathies to the show's owners in an emotional message after hearing about the news.
The sustainable home is thought to have caught fire after a blow torch ignited insulation and large sections will need to be rebuilt.
Luckily no-one was hurt in the blaze.
"Tragedy yesterday," wrote Peter on Instagram. "Heart goes out to a couple who would have taken occupation in a few weeks.
"Empathy to them and their arduous journey. The fire snatched their home away.
"8 hours and 6 fire trucks couldn’t extinguish this GDA followed passive house - which kept the smouldering fire in its belly."
A passive home has a very small ecological footprint and doesn't use much energy for heating or cooling.
The house was owned by a couple with three young children who were living in a camper van as they prepared to move into their dream home.
Cameras had followed their every move over the last few months, as they started to put the last few finishing touches to the build.
The new series of Grand Designs Australia, featuring this Coburg house, is due to start next year.
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