Sadiq Khan has taken a strong stance against building in the green belt by refusing consent to a proposed new development in Chislehurst.

Looking at the details this was an easy target as there was no provision for affordable housing. In political terms it was very low hanging fruit but it sends out a strong early signal on future policy.

What will be harder to manage is the need to tread a fine line between the attempts to provide a significant increase in the delivery of new build residential development and the protection of the un-built environment.

Time will tell whether this is an indicator of a specific policy direction or a Vinnie Jones like attempt to get the retaliation in first, just so the opposition know what they are up against.