Google “just park ” there should be a few that come up,near the Fitzroy ..they are quite expensive .. I parked over night in a university carpark nearby ..£40 for about 24 hours .. Which I thought wasn’t bad
Good luck with your op xx
Obviously I couldn’t walk that far, I’ve waited in reception and my hubby pick up car and park in front of Fitzroy for a few minutes;) x good luck with surgery xx