its based on the first part of your postcode i believe, as there was a chart on a forum i used to go on where you looked up the first bit of ya postcode it told you what group your area is in.
chances are your missus lives in an estate that may be nice, but shares the postcode with a sh!ttier area?
my whole town is a sh!t tip apart from a few new build estates, the new build estates are in the same postcode as my house, which is rated category c, my old house in a different bracket was D rated even in a crappy area.
one of my mates at 17 insured a 1.2 fiesta at his moms house which is on the edge of town in a village of inbreds, it cost him £780. when he moved into telford itself they wanted £1600 to change his address! LOL
only place youll see a major difference is if you move into the arse end of country bumkinsville.
