Tavistock Clinic
120 Belsize Lane, London, Greater London
100% positive
Directions: 2 bathrooms. 1) 3rd floor in the GIDS department, past the waiting room 2) ground floor and end of main corridor take a left so you see the library sign. Walk down and it will be labelled on your right.
Comments: Just ask if you are unsure of where you are going, and it doesn't need to intimidate you just because it's a clinic. you can go in just use the toilets it's fine. ;)