Holmes Place in Zürich does not offer Hamman or a Pool and it is normally crowded during peak hours.

Fitnesspark does a pretty good job at offering most of the things you are looking for, albeit not all at the same location. For Hamman one needs to go to their Münstergasse location, although that is the only thing I like about that location. The Stockerhof location offers an olympic pool sized combo facility where one can swim, get massaged by jets of water, or lay down inside the pool in 'beds' under which bubbles work to massage the body. There is also inside this pool a jacuzzi. However, as with most Fitnessparks it also gets pretty crowded during peak hours.

The one I go to which seems to still not be packed to the hilt during peak hours is Fitnesspark Puls 5. Worth a visit.

Except for their summer specials where one can join for only 3 months, all Fitnessparks fees are normally for a year paid in advance. More info can be found at their website:

www.fitnesspark.ch