Stephen Kelly completed his transfer to Birmingham City from Tottenham for an initial #750,000 fee today.
The Republic of Ireland international scored his first Premiership goal in Spurs' 1-1 draw at Birmingham City last year.
The Dublin-born youngster is a versatile defender whose performances for Spurs' Academy and reserves led to a call-up to the first-team squad.
But Kelly made just 10 appearances for the north London club last season after coach Martin Jol's preference for Paul Stalteri restricted the Irishman to a bit part as Spurs just failed to claim a Champions League spot.
Blues targeted Kelly as a replacement for Mario Melchiot who left the midlands at the end of last season following relegation.
He told the club's official website: "I've got pace and I try to overlap as much as I can without neglecting my defensive duties.
"But getting forward and joining in the attack is a big part of my game and I like to be able to do that.
"With Jermaine Pennant playing in front of me, he is a quick lad and he is going to skin people as well.
"So I am looking forward to lining up with him and I know there are a lot of other skilful players on the team."
The Dublin-born player admitted he was enticed by the possibility of regular first-team football as he looks to establish himself in the Republic of Ireland side after making his debut earlier in the summer.
"I was at Tottenham from the age of 16 and played over 40 games but things didn't work out the way I wanted," continued Kelly.
"It was time for me to move on and this is a great opportunity for me to come and play and do well.
"It is tough to leave a club when you have been there for so long and all your mates are there.
"But you have to do what is best for you.
"Everybody knows this club wants to be back in the Premiership and hopefully I can help them achieve that aim."
Kelly will join fellow new arrivals Cameron Jerome and Neil Danns as they look to make an immediate return to the top flight.