It isn’t just that there are not enough planning permissions – it is also that those permissions granted are not being built to artificially inflate prices.
Time for a land tax perhaps where developers not building are taxed on the empty plots? Not likely in this government’s lifetime, as developers have a stranglehold on policies and use them to their benefit rather than ours.
Also interesting that the South West as a whole (Gloucestershire to Cornwall) appears to need about 40,000 houses and East Devon wants to build nearly half that total.