Another part to this is that there's a certain amount of cooperation between Royal Mail and councils street numbering and naming. Councils are the first authori

Another part to this is that there's a certain amount of cooperation between Royal Mail and councils street numbering and naming. Councils are the first authority over new streets/locations, changes like a property being split or merged (i.e. landlords converting to a property of multiple occupation and not telling them for various reasons, and then residents have issues getting post), residential/commercial, etc, and then that gets passed onto Royal Mail to update the PAF. If there's an issue with an address you've got to check with the council first, so there would be some good fit for centralization there.