Future development decisions for parts of Stratford post-Olympic Games will be made by a new public authority, it was confirmed today.

The new body, to be called the London Legacy Corporation, will replace the existing Olympic Park Legacy Company (OPLC) from April 1.

It will be responsible for land including the Olympic Village, Westfield Stratford City, Chobham Farm, and the Carpenters Estate.

Current OPLC chairman Baroness Margaret Ford will be appointed its interim chairman until the end of the Games, when she has decided to step down from the role. It is not know if current OPLC member Sir Robin Wales will have a role in the new body.

London Mayor Boris Johnson said: “Building on the momentum already created by the OPLC, we are on track to grasp this unique opportunity and harness the Olympic legacy of new jobs, new homes and new communities.

He said he was grateful for Baroness Ford’s “huge contribution” over the last three years “planning and delivering a solid 2012 legacy.”

Her successor will have to deal with the conversion of the Olympic venues so they are ready for public use by 2013.

The OPLC is currently hunting for a new operator for the Olympic Stadium - with Newham Council and West Ham United among the interested parties - and a sponsor prepared to pay for naming rights for three venues.

Baroness Ford said: “The next phase of the legacy work, including major transformation plans to the park, are critical and will require a great deal of attention.”