Fundamentally Harry there is no "Housing Crisis", it's more an affordability issue. The current house buillding cycle and planning system is rigged to ensure maximum ROI for the developers. If you think differently you are deluded, sorry.
In an Island nation as densely packed as ours only a dotard (or people being bribed) would sanction national housebuilding targets of 300k per annum, let alone a million new homes inbetween Oxford and Cambridge and related "expressway".
Amazes me that large swathes of the population actually swallow the utter twaddle that officialdom feed us, with little or no challenge.