Ridgewell has signed a new three-year contract with the Midlands club after impressing during his first season at left-back, having previously operated chiefly as a central defender.
Ridgewell is hoping Alex McLeish's side can build on the success achieved during their first season back in the top flight.
But he is aware that making sure City stay amongst the elite is of prime concern.
He said: "I was pleased to sign on the dotted line and get the contract done and dusted.
"The ninth-placed finish came into play (when signing) and I want to be at a successful club and this club is driving on.
"But survival will be the main thing next season.
"After doing so well last season people will be wondering how we are going to do - but our aim is to stay in this league and hopefully push on from that ninth place."
Ridgewell has been impressed with the capture of keeper Ben Foster from Manchester United and Serbia striker Nikola Zigic for £6million apiece.
He said: "There have been some good signings. Ben is a world class keeper and coming from Manchester United he is a good acquisition for us.
"Filling in Joe's (Hart) boots will be hard for anyone in the world. Ben will come in well and get into the running of things. I think he will be brilliant for us.
"The big man coming in up front (Zigic) gives us something different in that department."