Where you live is irrelevant. You'll be based where we need pilots, this is normally North of Manchester or across the water to Belfast. The further South you go the harder it is to get based (generally speaking), however I'm hearing there is a small requirement for Exeter and Southampton in the latest recruitment drive due to attrition at Southampton. If you end up North then there is a bid system every 6 months where you can bid to change base, seat or fleet. I'd hazard a guess that it will take about a year to 18 months to get back to a base you want but some pilots are lucky and get it within their first bid.
Good luck with your application.