The UK can't make stuff because the rent is too high. Fix this and a lot of stuff downstream of it will change.
the uncomfortable truth is it would make property less interesting for foreign money flowing in the UK.
Rather than taking an introverted look at political power, money and devolving English power from Westminster, in a similar manner as the NI, Scott and Welsh nations to fund investments outside of London.
Perhaps looking at national infrastructure, and agreeing what we want to see in towns and cities then using tax incentives to encourage desired behaviour.
Or we could just blame Europeans for British political decisions. That's been working well.