"Reply to ADY. The pool you are thinking about is Marshall St Baths - I went there in the 80s too. It was closed during the thatcher era along with many other pools and libraries in london at the time. Classic design, and one of the deepest pools in london . The good news is its now renovated, reopened ( New Labour did something right!) and run by GLL so no elitist and expensive entry fees. Ps , its in Marshall st funnily enough - just alongside Carnaby St. Enjoy..."