CapCon is right!
If you want to study/train in London Stapleford is the best location choice for 0-fATPL.
It is accessable by the underground or train or you pay £70 a night at the airfield and you have London on your door step the other way. The theory is done at London Met so you'll have to live approx 9 months in the capital anyway.
I hope this helpss