So?
My mum isn't a British citizen and even she gets to vote in locals. And I can vote in any UK election. As long as you're a British citizen, I don't think it matters.
(MooCow_Byter, Mon 8 Jun 2009, 16:05, archived)

Also, I'm not a Dutch citizen
but I voted in the Dutch Euro elections and in local elections here, I vote in the general election in the UK.
( Flapjack I spay a little mare for you, Mon 8 Jun 2009, 16:06, archived)

you don't even need to be a british citizen
simply a legal resident.
( the mighty badger Aphrodite, on a bar stool, by your side, Mon 8 Jun 2009, 16:28, archived)