Brown, the older brother of Chancellor of the Exchequer Gordon Brown, said he has now hammered out details of his departure and has pledged to stay in the role until his replacement is in post.
He said that interviews for the position will take place next month, with an appointment set to be made before the end of the year.
Brown said he has not yet made a decision on his future, although he is likely to take up a part-time role in PR. He said: ‘My experience is in PR, so it’s likely that I will stay in that area.’
Over the summer, the council’s communications function was criticised in an independent report by Clearview Strategy for not being proactive enough. Brown has denied that his decision to leave was linked with this report (PRWeek, 8 August).