I was trawling back through old posts and found someone recommended http://www.justpark.com so I went and had a look and have booked parking 5mins from the hospital for £16.60 for the day of my op!
I know most people use Holiday Inn which is £39… but on the old thread I was reading a girl was saying her husbands car got broken into there and they have no security cameras, so worth a thought!
Just Park picked up all the local spaces… the one it found me is in International Students House which is opposite Great Portland St station and is £16.60 from 5am-midnight!
Thought I’d share in case it’s useful for anyone else 🙂 x