There is a new club open in LHR T1. Rejuve is just where you come out airside after BA zone R security. They showed me around today and it looks very nice, Gorgeous bar area, barbers, spa, gym and steam rooms as well as a meeting room (small though). Very nice design and layout with Philip Starke furniture and lighting. They charge £25 day passes and you have to pay for treatments on top (Bar, gym and showers free), £250 annual membership and pay as you go on top, £2500 annual with everything free or £5000 life member. They told me they plan to open more around the world and T5, if it works out of course. I think it might, it was lovely and the staff were lovely.