Yep Englishgal, 125 Euros for the initial, 55 Euros for the renewal, that is if you go without an appointment, I have heard it's cheaper if you have an appointment, but cannot confirm this. Waiting time for me has never been more than 2 hours without appointment.
If you'd read my reply in full, you would have seen that I was referring not to the UK CAA.
But A330... was asking about the FAA class 1, which is EUR70 here, same in the US. As they are all over the US, you may do it the day you go there. Usually the Flight School will take you there. Real quick.
As Englishgal correctly says, the class 1 is not needed for the FAA PPL, but some CAAs here only do a renewal for their Class 1, if you have an FAA class 1 and a licence with it...
cheers, IP