How can we make planning gains and build houses for profit with further development planning application controls?

The property planning system could be faced with further radical changes if we have a conservative government after the next election. Many property professionals have been long awaiting this green paper which aims to give the local community more influence over their local planning applications. The paper will almost defiantly see the use of Section 106 agreements decline if not see it scrapped completely. The Section 106 agreement is thought to deliver in the region of 40% of the affordable housing at this level.
The levels of speculative development and new house building sites are at their lowest levels for decades. With the availability of speculative property development funding also at its lowest levels for a very long time, is now really the best time to start tinkering with the planning system?