Housing Supply - the blame game

Housing supply articles routinely ignore the tragic comedy of planning policy at the TLA level, which is where the majority of the blame lies.  This CityMetric article explains a London equivalent, and do notice that London is relatively decentralised (32 boroughs) cf Awkland.

My own solution would be threefold:

1. Take away all local planning from the economically clueless TLA's and hand it off to local Commissioners (unelected).  Hey, can they possibly be worse than ACC's legion of brown cardies?  Thought not, but have a raft of KPI's to keep the Commishes - er - Commishing.  Like total costs not to exceed 1% of total build.
2. Institute a risk-assessment approach to building (e.g. all single storey residential builds would be Schedule 1) to cut through the endless processing of very minor proposals.  The current rule-based approach is hopelessly Byzantine, costly, ineffective, economically disastrous in terms of misallocated resources, and easily circumvented by finding less stupid jurisdictions.
3. Kick-start modularised, SIP, flat-pack, multi-proof-consented housing factories, partly to employ the hapless minions released onto an unsuspecting world by #1 above, partly to lower unit costs overall, and partly because I love CNC processes in general.  Cars, caravans, planes and boats are built this way - houses next....Could be funded by the zillions released from Council revenue streams by #'s 1 and 2 above...win-win-win.

Next problem?