I like the concrete bloc walls. They are becoming quite fashionable today. I'd keep them in the natural concrete color or if they have been painted, a color paint that resembles concrete. The concrete walls give a hard and cold impression so I'd choose wood flooring for the floors. The combination of a warm wood on the floor and hard, cold concrete on the walls is a nice one. Brighten the space with colorful modern art.

I'm quite lucky that we have quite a large bathroom for over here. There all normally so small in older homes! I have a a lot of space to fill and was only going to use the tiles in the bath and on the floor. I find fully tiled bathrooms very very confining. White wall for the rest, apparently, according to the design guru. But it's ok, I've been told when it comes time to decorate the garage I can have whatever I want!!!!

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)

Lino has been used in bathrooms, laundry rooms, kitchens and entranceways for 150 years (it is the THAT old...yep). The traditional checker board (black/white) is quiet "hot" in many areas of N. America...especially when a "retro" theme has been brought in (think 60's Diner). Lino is the old fashioned "vinyl" before plastics were invented. Then plastic was invented and people switched to "vinyl". Now people are moving away from plastics ('cause we've learned a thing or two about the environment) and are going back to the tried and tested Linoleum (Marmoleum = brand name for lino). Lots of fun in the black and white checkers! I think you'll like it.