All-inclusive bathroom on 8m²

Hello everyone!

Since construction will start in a few weeks, but we decided through the offers to design the house a bit more compact, we are now planning our bathroom.

This is already important for us because the bathroom is on the ground floor. There is no basement, so we have to fix the basic plumbing now.

Requirements:

We want a fully functional bathroom, preferably with 2 washbasins, a toilet, a bathtub, and a floor-level (masonry) shower without glass.
The left door should provide access to the garden.
Access from the bedroom is not desired; the bathroom should continue to be accessible through the dressing room.
The 45° angle would almost impose itself in this case because the access to the bedroom would not be so narrow and dark, but at the same time, the space behind the bathtub would not be needed. Moving the bedroom door downward along the bathroom wall is also not possible because we need the wall there as a bearing wall (otherwise a beam with a steel girder would be necessary).
The bathroom is mainly for me and my wife; the children have their own bathroom.

What do you think of the idea? My architect said he could only imagine it if the angled wall by the shower were made of glass.
Are the 5.5 cm from the bathtub to the door enough?

Do I have to worry about constantly flooding the area near the toilet when showering, or should it work out? If it only drips out a little, which is probably the case, that would be okay for us.

Do you have any completely different ideas? The rough construction dimensions are currently pretty exactly 2.63 m x 3.15 m, the position of the garden door is completely flexible (also possible at the top), and the door from the dressing room to the bathroom could only be shifted a bit downward.

Many thanks in advance for your help and ideas! :)

Best regards, Mathias

Someone is sitting relaxed on the toilet, another comes happily from the garden and bam --> kneecaps are gone.
In my opinion, that is just way too much for such a small bathroom.
Two doors, two sinks, bathtub and also a built-in shower...
Either the room needs to be significantly enlarged or the furnishing significantly reduced.
I would ask the architect to reconsider the overall concept on the ground floor. 10m² dressing room and a cramped mini bathroom, that doesn't work for me.
What's the point of the slanted wall behind the tub? It makes the bathroom even smaller and isn't much use in the bedroom either.

I would also straighten the slanted wall and reduce the access to the bedroom. This area brings you nothing. A walk-in shower without a glass door takes up twice as much space as a normal one, two sinks take twice as much space as one (you can brush your teeth at one), plus 2 doors... I think an exit to the garden is great, but you are trying to squeeze all the nice-to-haves into a small room without thinking about whether it might then look too cluttered. I sketched back and forth and came to no satisfying solution. Possibly a shower with a door, an asymmetrical smaller tub and/or only one washbasin (if you want, a bit longer) plus removal of the slanted wall - then the whole thing will be more relaxed :) Best regards in short

On the plan, this solution makes the engineer's heart beat faster, so beautifully compactly packed everything accommodated. In practice, unfortunately, it looks terrible for exactly the same reason: the shower is enough for personal hygiene. Those who sit in the tub want it cozier - but for a sense of space, "width" is an indispensable ingredient. Either or neither, braid or bald, one will have to decide. Packed in like this, it won't work.

I would like to add:

1. The shower is too dark
2. If someone is standing at the washbasin, the door is blocked
3. The bathtub cannot be installed as tightly as drawn
4. You have still calculated with raw construction dimensions. Plaster + tiles + adhesive can easily be 3.5 cm.

Leave out the bathtub and order a normal shower screen from the glazier.

Even better, skip the shower and shower in the bathtub!

The bed in the bedroom is probably only 160cm wide?
Roughly calculated 750 - 30 cm -30 =660 - 315-7.5 = then the plaster on the wall, it is about 300 cm wide in the bedroom