Laura, thank you for sharing those spectacular bathrooms. They all look good as they have lots of room around them, so I hope that your bathroom is just as big. If you decide to use a free standing tub make sure you have enough room between the edge of the tub and the wall to get a mop through to clean it. You would be horrified at the amount of dirt (and hair) that can collect in a bathroom, so every surface should be readily accessible for cleaning.

I think your primary costs will be in the square metres of building you actually need to achieve this, together with the waterproofing and tiling over quite a large area. Note that your first two photos have a raised lip between the shower recess and the rest of the bathroom to try and keep the bathroom floor dry from water splashing out from the shower.

For dimensions I would allow a distance of at least 1800mm from your shower rose to your nearest towel rail, so you don't have soggy towels. For the shower recess openings I would allow a minimum of 900mm on either side (but 1200mm would give a more lux feel), and the width of the shower recess should be at least 900mm, but 1200mm would feel better. The length of the wall between the shower and the bath should be at least 1800mm. Of course a lot of these dimensions could be smaller, but I think that you risk it feeling pokey and like a rabbit warren! You will certainly save money on a shower screen, but will spend a lot more on the space, the waterproofing, the tiles, and the labour to lay them.

Make sure that your waterproof membrane under the floor and wall tiles complies with the building regulation requirements. With an open shower like this I would normally waterproof the whole bathroom floor and provide an extra floor waste in the middle of the bathroom floor as back-up, in case there is ever a blockage in the shower's floor waste. Best of luck with your bathroom design.

what is the size of the available space and where are the doors and windows?

attached variations (within 2870 x 2900) to add to the confusion and there will be many more options

Lara as my post above you could use a glass shower screen between the bath and shower and as you would have heaps of light you would only need one opening cheers

Same for this you could use a shower screen between the vanity & shower bath space with opening at one end and suspend a mirror in front similar to what Calvin Kline did in his bathroom

Hi Laura, do yourself a big favor, before you buy your bath make sure you actually go to a show room and sit in it, best way to see if it fits, like trying out for a new bed haha, another idea for you

Houzz Tour: Ocean Residence · More Info

I'd look around especially if you are considering going round, how would you fit , a bit like the square toilets they look good but are very uncomfortable as bottoms aren't square you don't have to buy from another supplier to try cheers

As previously mentioned, not traditional baths can be a nightmare with kids, so if kids are on your agenda, have a good think. Also, if you are not going to stay in the house for a LONG time, consider resale. Parents look for traditional baths for young children and non-traditional bathrooms look good, but can be a real turnoff. If this is your forever, no-kid home, go for it. If not, perhaps reconsider. I am also wondering why you are looking to spend so much on a bathroom that you will not be using (apart from the bath)? Just be careful you haven't overspent/overcapitalised on a portion of the house that really only needs to be functional and modern. People might love the bathrooms on the block, or whatever, but they buy houses in their price-range with functional amenities. Just some food for thought. Good luck with the build.

Hi Laura, I love your bathroom plans, so exciting. Free-standing baths are very popular and I am installing one in a bathroom soon, on a platform so it's a real hero piece. Reece has a large range of free-standing baths including acrylic. An acrylic bath will give you the look you desire in the price range you have designated. Here's a link to Reece free-standing baths. Cheers, Penelope

We have lots of freestanding baths for your choice here www.dreambathtub.com.