Here is a link to the letter submitted by GLERA.
The COLPAI website sets out the proposals.
The Golden Lane Estate RCS Facebook site provides comment on the application and summaries of recent discussions.
The plans can be downloaded here.
The opengoldenlane blog covers many of the most important issues.
Here is an independent analysis of the proposals from Alec Forshaw, who worked as a town planning, urban designer and conservation officer with the London Borough of Islington from 1975 to 2007.