A change in leadership, and a change in policy?

Shortly after the change in the Secretary of State, the Government is indicating a tougher approach to securing planning permission for new housing on 'greenfield' sites. At the Conservative Party Conference, Boris Johnson said "You can also see how much room there is to build the homes that young families need in this country not on green fields, not just jammed in the South East, but beautiful homes on brownfield sites in places where homes make sense".