It would allow freedom to use a small van, etc to run a small enterprise.
I live on an estate within LB Hammersmith & am allowed 1 estate parking permit only. Immediately adjacent to my block is a CPZ with dozens of free spaces. I am not allowed to apply for a CPZ permit because I live in the wrong block on the estate. Blocks on the far side of the estate can apply. This prevents any kind of business activity I may undertake as there is no other parking in the area. My estate is completely surrounded by another boro'.
This is a rediculous situation caused solely by local council bureacracy.