Hi, for some time we have had some more than normal ammounts of condensation in the car and have been wondering why and how this could be. On closer inspection the floor carpets on the driver side and rear passenger drivers side are soaking wet. There is no sign of water leaking from the roof or doors. I am thinking of a hole in the floor pan or if there is a leak from a pipe that runs under the carpet in that direction?? The passenger side front and back is bone dry. Any ideas???

Sounds more like your heater matrix, is the engine coolant needing topping up sometimes?

Good point re the heater matrix another clue is a sweet smell associated with the antifreeze mixture.
Also check the sunroof drain pipes that are located on each side of the boot,they are supposed to pass through the boot floor with gromits to seal but one may have been pulled out accidentally and is now directing water inside the car instead.
A spare wheel well check may also reveal a pond forming.