There’s officially another baby from The Block gang! Mat Johnson has welcomed his little baby into the world!
On Friday, Mat took to Instagram to reveal that his friend and co-parent Leah gave birth to their baby boy.
“Yesterday my life changed forever,” he wrote.
Friends, family and fellow Block alum took to the comments to congratulate the new parents.
“Congratulations and what a great father you will be,” wrote 2013 winners Alissa and Lysandra Fraser.
“Congratulations!” wrote Real Housewives of Melbourne star Jackie Gillies.
In the 2025 season alone, we saw Emma and Ben and Steph and Gian expect a little one, with Mat Johnson revealing that he’s going to be a parent too.
Mat, who is paired with his best friend Robby on the show, revealed the news right before auction day.
“I have always wanted to be a dad, especially in this later part of my life,” Mat told New Idea.
Mat is having a baby with his friend Leah and they first met 20 years ago when Leah first sat down in Mat’s hairdressing chair. They’ve been friends ever since.
Leah, who is in a same-sex relationship, approached Mat with the idea over a year or so ago. While he said no at first, he realised that having a child together would be an incredible experience and a year later, they started the IVF process.
“I didn’t know if I was ready at that stage of my life, and I think I was terrified because I have a very good life that I worked decades to be able to have,” he shared.
Leah said she was “ecstatic” when Mat changed his mind. However, the IVF process wasn’t easy on the pair and it took several years before Leah fell pregnant. But just a week into Mat’s journey on The Block, Leah found out she was pregnant. Knowing how important The Block was Mat, she decided not to tell him until he got back — but that meant she was already three months pregnant.
“I was so nervous,” Leah said.
“After Mat returned, I booked in to get my hair done, the very last appointment that he had for the day, and I sat there in my baggy clothes and gave him a card. It had the ultrasound in it, and Mat just looked at me and said, ‘congratulations!’”
While it took him a second to understand what was going on, he was overjoyed when he realised he was going to be a dad.
Now, Mat and Leah plan on co-parenting their little boy together.
Congratulations!
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