Thanks for your comments - The room is approx. 5m square - so not huge. The tiles being too busy for it is a concern I have too. It's very light and sunny - two of the walls are glass and slide back to the outside, one wall is French doors which lead inside the house and the other wall has windows looking into the house. The roof is louvre. Can't put up a picture as it's still being built! I'm still lusting after these tiles though...

Yes, measurements would help. Thank you aldrea1 for other explanation, though. That helps too. It sounds like you are going into a total gut-job! I love this! Great opportunity for your creativity. Also, it looks like you have a petite sized stove. With total remodel you can upgrade to a standard size range. Is this part of your plan? Are you going to replace any appliances? It would be good for you to keep sink and stove in original locations. It is complicated to move the stove's exhaust fan and the sink's plumbing. Not impossible, but probably $$$$$$$ and a lot of hassle…. So, I would start planning with those items--stove and sink on current walls. Wherever you put your refrigerator, it would be best to be sure side view is hidden. If refrigerator stays in current position, you could make peninsula a little smaller, so wall on the right of kitchen entrance could extend further and hide refrigerator edge----Or, move refrigerator to another location… Not too far from sink and counters, though. That would cause you inconvenience. You want a work triangle with not that many steps in-between. Do you currently have a dishwasher? Or are you planning to add one? Not much creativity in placement of a dishwasher---needs to be near water source and drain.. Are you doing the work yourselves or hiring a contractor?

Thanks :) Yeah decided to go with tile. So sand cement is ok over existing tiles if I prep them first? Only problem is, the new pad can only be about 30mm at it's thickest (leaving up to 15mm for tiles) otherwise it'll end up being higher than the hallway floor. So I either need to make the fall shallower or not bother with the waste and make it all level. If I made it level, could I use levelling compound at that thickness or would deck mud/sand cement be the best option? Also, should I be putting in mesh for strength? (I know I should (and will) ask the local hardware what they suggest, but it's great to have suggestions from the Houzz community also)

Hi Luke, thanks for your reply. Yes, there is existing plumbing but we need to create a gradient somehow on the wood floor. Concrete floors can be ground to create the gradient but need to come up with some other solution with the wood.