She believes the fact that everyone walks away a winner is the secret to its success.
"They all get magnificent homes to keep forever. That and the combination of the teams, the fascination that comes with what they might, or might not do to the homes, the interpretation of the house rules, which always provides plenty of entertainment; how much the teams improve over the course of the competition, and the fact the whole renovation is done in one week!
"It still blows me away just how much work they do and how creative they get. It’s always super impressive."
Johanna says there’s "plenty of surprises" in store this series. "We have twists and turns that have really kept the teams on their toes and as a result more involvement from me which has been really enjoyable."
The addition of two new judges will also add some spice. "When you’re watching the show you will either find yourself a little bit shocked by what they’ve said or rolling around the floor laughing. They don’t hold anything back and Lawrence definitely adds lots of colour in more ways than one! They work beautifully alongside Wendy."
In addition to hosting House Rules, Johanna anchors the multi-award winning Better Homes and Gardens, which she has fronted for more than a decade.
Before her successful television career, Johanna represented Australia in swimming, winning bronze at the Auckland Commonwealth Games in 1990, and silver at the 1991 World Championships.
She joined Channel Seven after announcing her retirement from swimming in 1993.
She is one of the network’s most popular personalities having presented Seven’s Summer of Tennis, Melbourne Spring Racing Carnival, Seven Weekend News, Sydney Weekender, Auction Squad and the Summer and Winter Olympics.
Johanna presented all the colour, fun and characters from the Rio 2016 Olympic Games – her sixth time as host – and the awe-inspiring Paralympic Games.
Johanna is an avid charity worker, donating her time to the McGrath Foundation, the Humpty Dumpty Foundation and Sydney’s St Vincent’s Hospital. She is also a Beyond Blue board member, an organisation devoted to improving the mental health of all Australians.
Johanna is a proud mother of two sons: Jesse, 21, and Joe, 20. In her spare time, she runs a construction company with builder husband, Todd Huggins. Together they’ve built and renovated several homes.