Further to my prior post I’ve since found a page on the GLA site that states the GLA’s involvement and the process to come. Click on the link below to access the page, or for convenience I’ve copied part of the text below incase the link expires.
On 17 October 2013 the Mayor of London received a request to become the local planning authority for the purpose of determining planning application DC/13/83358 at the Convoys Wharf site, in the London Borough of Lewisham. This request was made by the applicant of the planning application, pursuant to article 7 of the Town and Country Planning (Mayor of London) Order 2008. On 30 October 2013, having considered a report on the case (reference D&P/0051c/02), the Mayor notified Lewisham Council that he would act as the local planning authority for the purposes of determining the above-mentioned planning application (under article 7 of the Mayor of London Order and the powers conferred by Section 2A of the 1990 Town and Country Planning Act).
In due course the Mayor will attend a site visit, and hold a public Representation Hearing where he will consider this application in detail, and determine whether or not planning permission should be granted. The date for the Representation Hearing will be published on this page once it has been established.
– See more at: http://www.london.gov.uk/priorities/planning/public-hearings/convoys-wharf#sthash.ov3HJNIp.dpuf