I’m glad that the blue badge application was successful. I will point out one thing, though. The £10 is an admin charge and they take the money whether the application is successful or not. That’s the way it’s done in Warwickshire and Worcestershire. I’d be surprised if other counties were different.
In West Sussex you only pay £10 if successful too. Actually I just looked at Warwickshire and Worcestershire. You are refunded the charge in Worcestershire if unsuccessful, and only charged if successful in Warwickshire (according to their websites.) So I assume it’s a national policy.
Generally it’s that you can’t walk more than 50 metres. A bus is only about 20 metres (unless it’s one of those long bendy buses!). So eligibility for any rate of PIP for mobility or high rate Mobility DLA automatically qualifies you. There are a few other automatic criteria, but the best way to check is to look at the website of the County Council where you live. There’s always a page on criteria for a blue badge.