@chdot: New greenfield housing developments are locking residents into car dependency, making everyday journeys impossible without a vehicle, a new report has found. Meanwhile, pledges for walking, cycling and public transport are often left unfulfilled.
IIRC the new planning regime as introduced by David Cameron directed that local authorities should operate on a presumption in favour of sustainable housing developments. A development which residents can only access by car, with no realistic active travel or public transport options is, I would argue, ipso facto not sustainable. Though again IIRC the guidance/regulation in question did not bother to go in to any detail as to what was meant by "sustainable" in that particular context, so sticking a few solar panels on roofs would seem quite likely to be sufficient to allow the relevant box to be ticked...