When I studied Phonetics as part of my University course, we were told there is an imaginary line dividing North from South phonetically, and the relative accents (which are legion in UK!) are quite distinguishable on either side. It extends from The Wash directly West across the country. But I tend to believe it's not as simple as that.

I was a Nosy Parker this morning, as neighbour-across-the-road's husband told me to look on the satellite picture of next-door-neighbour and see his back 'garden' (which is not visible being surrounded by high fences) I did, and it looks like a huge junk yard or Corporation tip! But the tip-owner is a lovely chap and has fixed our garage roof today, and we love all our neighbours, so nosiness isn't nice.
I'm quite tickled to be living in Pightlestan! Norfolk n' good it is!