Greenwich Council has just announced plans to require residential developers to go public with their full, un-redacted, viability assessments when seeking to provide less than 35%  affordable housing on a site. 

Viability assessments frequently contain commercially sensitive information - such as the price agreed on a land deal or  the proposed sales values of individual units - which is the very reason they are usually published in a redacted form. 

This is likely to leave developers facing a very unattractive choice between:

a)  accepting affordable housing that risks making the whole project unviable; or 

b) releasing information into the public domain that puts them at a competitive disadvantage.