Once I had kitchen customers showing me the exact layout you posted first, a bathroom company suggested it to them. Elderly couple. I strongly advised them not to do it, because "what if one of you can't walk properly and needs help?"

The loo is nicely concealed, but there's not much space to move around anymore.

What's the measurement from door to the wall on the right?

Thank you so much for coming back to me.

I think we might have to revert back to a version of the architects drawing and do something like one of the attached, I would love to get a large vanity in there so wonder if we can if we make this change? Also would love a large shower too so not sure we can have it all! I'm not 100% sure of the dimensions of the wall on the right of the door, I would guess 800mm? Thank you!

And the doorway is already in place? Could you measure it?

And the soil pipe?

Yes the door way is in place but it is a pocket door if this helps?

The more I look at it, the more I feel this configuration is the only one that will work?

And I didn't include a rainshower, for I don't like them :) We've recently taken out ours and installed a second showerhead on a glider.

Do you actually need the wall? Could't you just have a glass shower panel between the two instead of the wall (so you have an L shape surround to the shower)?

@rinq yes this design could work, I wonder would this give us more vanity space and a bigger shower overall too?

@RibenaDrinker do you have a pick of what you mean? I am not great at visualising!

Thank you both so much

"I wonder would this give us more vanity space and a bigger shower overall too?"

It most certainly would!

Another option

Thanks Jonathan, I'm just wondering which option would give us the most space for the shower? Thank you so much for coming back to me on this. And I do love the additional storage on the left

You could also add storage above the WC.
The shower I drew was 1400x 900mm

Hi Jonathan, just letting you know we have gone with your idea in the end. It really maximises the use of space, and we all love it so thank you so much again!

I have another bathroom dilemma; I'm hoping people can help me with. I have visuals attached of our downstairs guest bathroom which has a shower. I'm just wondering how we should layout the tiles in this bathroom. We will have to tile the four walls of the bathroom, and I'm wondering if we should continue the same tile on the floor of the bathroom as there will be a concealed shower tray, and if we should continue the tiles on the wall along the next week. I love the wooden panelled look but I'm just not sure what will look right. I love antique mirror tiles too but again not sure these will work on the walls? Any advice hugely appreciated once again!

It is the wall on the right of the drawing that is really throwing me. We want this shower to be hidden as it won't be in use every day, or ever really, but is just going in downstairs to futureproof the house

I don’t think all the tiles have to be the same but they do have to continue a theme.
If you do want to use mirror tiles there is really only one wall they could go on (to the left of the basin) because you don’t want mirror to get to get too splashed so the can’t go in the shower, they are not ideal behind a basin in a shower room (it’s different in the image of a cloakroom shown earlier because in a guest shower room guests might shave or apply makeup so need a clear mirror.)
So if you use antique mirror tiles as the starting point the next choice of tile also has to have a an antique feel. A honed marble style with a similar tile size and shape as the mirror tile would be my choice- I would put this tile inside the shower walls, on the floor and a small upstand (like a skirting board to trick your eye into thinking the floor is bigger). If you do like mosaic then I would put this on the shower floor as it sits more comfortably on shower tray bases that are contoured towards the drain- mosaic is also less slippy under foot).
There is also a cost efficiency to putting mosaic in a smaller area.
Don’t forget to carefully choose the grout, I would choose a mid brown with a tile that has brown veining,
I wouldn’t tile the door wall, I would put the towel rail on this wall at the shower end. On walls not tiled I would choose a deep colour such Farrow and Balls London Clay.

Use one type of tile for paneling ,such as long narrow ones vertically, an edge on top. Paint the walls on the toilet side and use a different tile in the shower on the top half.

Hi guys, I am back again with a bathroom query, I have an image attached. I really don't like the current layout for this bathroom and I'm thinking if we move the toilet to the wall on the left under the sink and put the bathroom vanity where the toilet currently is so that this is the first thing the person sees when the door is open. Do you think this works? Again advice is hugely appreciated. I honestly had no idea finalising bathrooms would be so difficult, and the support I have received on Houzz has been the best of any professional I have met so far so thank you all! Any questions please do let me know!

@jonathan I am hoping that as my bathroom guru you get a chance to cast your eyes over this for me. Would hugely appreciate your advice and expert eye on it. Thank you!

Is this the layout for the original 'wc with a shower'?

No this is the bathroom just off the utility room. Thank you!

Why are sink and loo in the corner?

I'd place the toilet centered under the window and a shallow sink/vanity opposite the door. 130x180cm is quite spacious for a toilet.

The original idea was that this would be suitable for a wheelchair, but we don't need that to be the case. What size vanity do you think we would fit? I thought this style could work in that space?

With a vanity I'd say divide the 180cm into 2 like this:

And 130cm is wide enouh to have a 50cm deep vanity, though I'd suggest less depth.

Any style could work, it's a toilet, have fun! From plain all white to slightly over the top, just make it look like it suits the rest of the home.

Note: With a floating toilet use the window wall. With a more classic style use the above layout.

Or.. Use just half of the space like your builder suggested (with a small corner sink for example) and have water fittings built in on the other half of the space (and a floor drain of course), so you could have a shower there. Ideal for washing dogs, venetian blinds, surf suits, kids coming from the garden pool in summer, etc. I'm the practical type, I like to have this option if I had the space for it like yo do. But when not yet used: Cover the fittings with a cabinet for example, something decorative.