The actor, who plays Sean Tully's partner Marcus Dent, finalised a major new contract with the ITV1 show earlier this week.
Condou, writing in his column for The Guardian, explained: "This week I made the biggest commitment of my professional life. I've signed for another year on Coronation Street, taking me right through to March 2013.
"As an actor, it's rare to have anything like job security, so knowing where I'm going to be working for the next 15 months is not something I've experienced before. It feels right, though."
Condou and his best friend Catherine are currently expecting their second child together. They already have a young daughter named Georgia, who splits her time between living with Catherine and living with Condou and his partner Cameron.
"With the new baby coming, it's great knowing that I have that bit of security," Condou continued.
Marcus returned to Coronation Street earlier this year after previously appearing in Weatherfield between 2007 and 2008.
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