New building with approximately 350 sqm of living space

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yes, the children's bathroom. An 80x80 shower will be installed, a washbasin, and a toilet.

Draw it out for yourself... 1.8m (shell construction) wide but 5m! long...

Now I’m laughing

you don’t need a huge hallway. Yours is huge!

You don’t know what to do?
Fill out the questionnaire.
Set the plan legible.
Site plan with building plot
Explain why it is like that. No one recognizes the perfect here.

Shower 80x80 in a 350sqm house.
That’s what I call harmonious.

An 80x80 shower is installed, sink and toilet.

So max 70cm wide window... and the first 3 meters are in the dark. You don’t get the problem/the mentioned problems, do you?
They are actually understandable and comprehensible for everyone.

What else are you supposed to do?

You say you like everything. My tip for you: build it exactly like that; and don't let laymen talk you out of your well-thought-out floor plan.

So a maximum 70cm wide window... and the first 3 meters are in the dark. You don't get the problem/the mentioned problems, do you? They are actually understandable and comprehensible for everyone.

On the ground floor there is a bathroom 3.3m x 4.9m On the upper floor a master bathroom 3.3m x 4.9m and the children have a separate bathroom yes it is a bit narrow but that's just how it is. Honestly, most children would be glad to have a separate bathroom.

Are you sober?