Love those! I think you've found it! Otherwise if you're after a more encaustic tile finish (more matte, stone look which I love) you can find them. If you're in Melbourne, Schots have one called Versus, but there's lots of brands that do them if you search encaustic diamond tiles?!

Hi creativelychallenged, I'm pretty sure all the tiles are faux-marble from Beaumont Tiles. I've used them in bathrooms and they are cost-effective (from $40sqm un-laid) and look beautiful. Marble and now faux-marble is a classic look so not prone to dating. You may have noticed its recent popularity due to the faux-marble now available as the average homeowner may not have the budget for real marble. People worry about decor 'dating' - think about what you love, what will make you happy to live with - decor doesn't last forever because our own tastes change and decor can suffer from wear and tear. Choose what you LOVE and you can't go wrong :-)

I’m sure you can convert that space. Just need plumbing and electricity. You will have to get used to walking outside to laundry in all weather. personally I would of left the laundry as part of the bathroom. But I never use a bath.... The way I sort all my colours on the floor of the laundry, and sheets and towels, an outside set up would never work for me. But if it works for you, that is good.

Is there a reason you’ve chosen a nib wall instead of glass? Glass would open up the bathroom. I think your plumber will also change the location of your drain. And unless you absolutely absolutely love the long shower grate, I’d skip it. They drain into the same size hole as a standard one but add a larger area to clean and catch hair. I would also out the toilet between the vanity and shower. A toilet needs room on both sides but a vanity can go hard against the wall maximising the space.