"As part of the Group’s simplification programme set out in its 2011 strategic plan, the decision has been reached to close Essex House, leading to around 570 role reductions. A further c75 members of staff currently at Essex House will move to our Chelmsford location.
"As with any decision that affects our colleagues, this was a very difficult one to make. We will do everything we can to provide support for both our employees and the local community to manage this transition.
"We will work with our colleagues wherever possible to try to find suitable roles for them elsewhere within the Group."
More top news
Peterborough United have continued their summer spending spree with the signing of Sheffield United midfielder Louis Reed.
Warm and sunny this evening but cloudier overnight with a few spots of drizzle possible later. Rather cloudy tomorrow but most places dry.
Police investigating the fatal stabbing of a man in Northampton want the help of the public tracking down two men and a mini car.