The Guardian article is quite interesting - as is the quote from Sadiq Khan. Since being elected he has already rowed back on the number of affordable homes to be built, so if he does introduce a London standard for viability assessments - as he had said he would in the article - it will be interesting to see whether it improves the current situation. I think Lambeth Council's normal mode of operation is to choose a developer, point them in the general direction and then let them get on with it. This may explain their supine position. They don't want to pick fights with prospective "partners" needed for Cressingham Gardens, Central Hill, Knights Walk etc etc. After all look how successful the PFI "Oval Quarter" redevelopment of Myatts Field North has been - nearly all sold off-plan in Singapore! The other thing that occurs to me is the amount of WASTE in all this. The government is always going on about cutting out red tape and bureaucratic waste. Then they set up an expensive planning negotiation system using countless surveyors, architects and other consultants designed to up a developer's profit - apparently typically from 15% to 25% (see Guardian article reference to Heygate above). If this was going on in Nigeria we would be accusing them of corruption. Here it is just par for the course - and also adds enormously to a council's costs bureaucratically unless they just roll over and accept the millionaire corporations' special pleading. And of course by accepting a much lower amount of affordable housing living costs are increased for the poorer end of society - and the the government seems oblivious to the fact that tax payers may have to subsidise high rents through Housing Benefit because social rents are not available.