I understand that the National Audit Office have just been given authority to undertake a value for money audit on the planning of pupil places and allocation of capital to meet basic need. One of the things that the audit will focus on is the value for money implications of establishing free schools in areas where there is already adequate provision at a time when there is unprecedented demand elsewhere.
There will be a survey of local authorities and engagement with stakeholder bodies.
It may be worth members of the Local Schools Network contributing to the debate. The report will go to the Public Accounts Committee before the end of this year.
They are also currently undertaking an investigation into the expansion of the Academies programme which will report in the autumn. Details are here