Labour have retained control of Caledonian Ward.  The council website says:

At 2.45pm, the Returning Officer announced the results for the Caledonian ward. The following councillors were elected:

Rupert Perry, The Labour Party Candidate, with 2, 540 votes
Paul Edmond Convery, The Labour Party Candidate, with 2,503 votes
Charlynne Mari Chantal Pullen, The Labour Party Candidate, with 2,245 votes

Congratulations and welcome back to Paul and Rupert and welcome to Charlynne.  Labour also look set to take control of the council overall, both on the basis of the results so far and an informal tally by Labour councillors.  If Labour do take control Paul Convery predicted that he might become executive member for planning etc.  Will report further when more detailed results are available.