You could look at a Japanese style bath and shower side by side with a glass screen between the shower and the WC, this glass screen could have a sliding or opening door. This layout would also give you a full width vanity

thanks, only problem is the vanity wont fit there, the wall is not big enough to have a 500mm vanity unless i go for a 400-450mm custom made. also i am trying to avoid moving the toilet as it will be another big job. also looks like not enough space between the toilet and shower, Prefer not to move the toilet from the original if possible at all.

With the oklouise design the window comes behind the shower so its not suitable plus the vanity gets too small.

As the bath and toilet plumbing are on the cavity brick wall (double brick) which could also mean an external wall plumbing should be easy. And yes you would need a 400-450 wall hung vanity, Bunnings will cut their cabinets to work with different spaces, ie: depths. Whatever you do you will need to spend some money only other option is to keep the shower over the bath, good luck

I have 4 options, 3 without moving the toilet. but the trick part is how to get the drain for the tub to the shower(existing drain). like the 1st(thanks to siriuskey) and 4th, but not sure about the idea of accessing tub through the shower and it has the most plumbing work to do due to the toilet relocation, but the drain for the tub and shower will be easy as to create a raised platform and but both in there. also the problem if i put a free standing there the floor eventually get dusty and dirty and not enough space to clean.

2nd one crowded in one end and looks like lot of empty space but can put tub and shower in a raised platform

3rd is oke little crowded at the vanity end, but dont need to move toilet but not sure how i can get the drain from tub to shower without moving the toilet.

4th almost same, plus side best layout, but i need to do extra framing for the vanity as there is a 100mm stud wall sticking out at that wall where the vanity goes, also the issue is how to get the drain from tub to shower.

some advice would be nice.

5th - this would be a good option too as tub can connect directly to the drain, shower already on screed so little high anyway which is probably enough to connect to the same drain under tub. Only problem is the relocation of the toilet. but all the space are well used i guess

plumbing could be concealed inside a shallow false wall and with a built in bath plumbing can be hidden under the bath and avoids the hard to clean spaces of a free standing bath and the arrangement with the bigger shower, toilet in same place, bath under the window and semi recessed vanity allows for the most generous walking space with easy access to towel rails but you need to have a plumber check what's possible and there's always some cost involved but no point spending any money without achieving the best result

Thanks, this is only an additional bathroom which supposed to be powder room later on as i am adding an ensuite and a common bathroom downstairs where all the bedrooms are located. No space for a tub downstairs, but we need a tub as have small kids. Prefer a free standing because it looks nice. A 900 x 1200 shower is more than enough.

Speak to your plumber to see what he recommends, Japanese style bathrooms are very popular especially in small spaces, it also keeps the wet area in the one place and not all over the bathroom

the size of the shower doesn't change the location or plumbing

If the toilet is on an external wall, cavity or double brick the plumbing can be run out through the wall so as not to disturb the slab. What a shame you can't have a full family bathroom downstairs where the bedrooms are.

I am looking to add two bathrooms downstairs, one as a common, and another as an ensuite, but only with vanity, shower and toilet. I am closing an entry door and knocking a wall down to make a room of 1.8m x 4m then divide it by two to make space for 2 bathrooms.

Existing Ground floor

New plan for two additional bathrooms in ground floor, its a split level home, so we have access from side, just not directly from where we park cars but its oke, no other place to put it.

Difficult to accurately understand your plan but would you be able to fit a better family bathroom in the storage area so that you could include a very necessary bathtub, there's already plumbing above that space. The upstairs bath/powder room could then just have a shower to replace the bath?, with vanity and toilet.

Few things

1. Still not enough space in the store for a bathrub.

2. I will loose the storage space, storage is very important with growing kids, this way i will have a nice big store room to store.

3. Cost and risk - to run drain i need to cut a lot of concrete and you dont know if there are beams underneath, cutting the concrete slab all the way to store is like cutting the the house by half. There is same risk involved when i remove that single brick wall for the new bathroom,. but i am planning to do another wall first then remove this.

4. Upstairs bathroom is big enough to accommodate all - its a 2030 x 3600 in size

5. The hot and cold water coming behind the wall(bedroom1) where i put the new bathrooms, so just need to drill it through the brick.

I know either way i have to cut a lot, one is to cut the concrete slab, other is to remove a brick wall. I thought about putting one outside, but then i have to involve a surveyor, council etc. to much time consuming that way.

This was my original plan, a bathroom in the storage, and a walk in robe with ensuit in the entry.

Because the upstairs powder room/bath is on the external cavity wall, this would make sharing plumbing easier. Storage is not as important as a good family bathroom. If it means going to council for a better result I'd do it