Got a reply today from the Ministry for local government and communities:
Thank you for your email of 31 August about the above site and I apologise for the delay in replying.
I have contacted Lewisham Council today and understand that to date no actual planning application has been submitted. As this is the case, I am sure you will appreciate that I cannot comment on the merits of the proposal since to do so could prejudice the position of the Council in the event that a planning application is submitted. I must also be careful to avoid prejudicing the Secretary of State’s position since the application could come before him formally in the future.
Once you have established that an application for development is submitted, you should in the first instance raise any concerns with the Council. However, if you consider that this is an application which should be determined by the Secretary of State following a public inquiry, you may write to us at this office setting out the application details and the planning reasons why you wish the Secretary of State to consider call-in of the proposal. You should bear in mind that it is the Secretary of State’s policy to be very selective about calling in applications and, in general, this will only be where issues of more than local importance arise.
I am attaching a House of Commons guidance note about the call in process that you may find useful.
Planning Casework Manager
Planning Casework Unit
5 St Philip’s Place, Colmore Row, Birmingham B3 2PW
Department for Communities and Local Government
firstname.lastname@example.org T:0303 444 8030
PCU general enquiries: email@example.com T: 0303 444 8050
Visit DCLG on GOV.UK www.gov.uk/dclg Follow us on Twitter: @CommunitiesUK