The France U21 international has been the subject of widespread Premier League interest in recent months, with the Daily Mail also revealing that the player has been tracked by Manchester City and Tottenham.
However, Blues boss Jose Mourinho looks to have won the race for Zouma's signature, with the 19-year-old set to arrive at Stamford Bridge for a fee of around £10million.
The centre-back is understood to have put pen to paper on a five-and-a-half-year deal in west London, and could act as a long-term successor to club captain John Terry at the heart of Chelsea's defence.
David Moyes had also been linked with a move for Zouma, as he looks to solve Manchester United's leaky defensive problems. Meanwhile Arsene Wenger has also been monitoring the talented teenager's progress in France, with a view to trying to lure him to Arsenal.
A move to Old Trafford or the Emirates no longer looks likely for the Ligue 1 star, though, as talks with Chelsea are believed to be at an advanced stage, and all that remains to be agreed is where Zouma will play out the remainder of the 2013/14 campaign.