Feedback wanted Single-family house approx. 135m²

I can't understand how some homeowners slam their living room with floor-to-ceiling windows and then, in the worst case, have the blinds or shutters down all day.

Shutters are not used because of visibility (most arrange the living room not facing the street anyway, and if they do, there are special mirror surfaces), they are for sun and heat protection and protect on very sunny and warm days. Windows, even large ones, are necessary to get enough daylight into the house or to have a clear view of the garden.

When I lie on the sofa in my living room, I want to be able to switch off and the area should not be visible. A retreat.

You do have that... despite panoramic windows facing the garden.
Most people have a cozy feeling despite the windows. And that is exactly why one differentiates during planning between patio doors, panoramic windows, and bands of windows or loopholes.
Accordingly, one plans. It is not just black or white, all or nothing.
Daylight is simply necessary. And your place, that is your living room, is a pitch-dark hole. The corner window lets in less light than the two panes suggest.
And before you are constantly dependent on artificial lighting in your own home, the better plan is to install larger or more windows and then lower the shutters at times when you want privacy. That is better than the opposite.
And hand on heart: when do you lie on the sofa? Is there movement outside the house by the milkman and others then?
The lack of light also affects the upper rooms: with the RBM of one meter, you have 80 cm wide windows, through which sunlight only wanders for a short time.
...and mentioned earlier: the hallway.

The technical room doesn't have a window yet. Absurd! Yeah, let's let some light into the place. It's like a dark hole.

Thank you for your input. I might just be wired differently when it comes to this topic. In the hallway by the stairs, there are 2 windows stacked, both 1.08 (will still be centered) And then next to the front door. Maybe one could also put a strip window above the front door. Or do you see any other possibility there? The upper floor is noted. If the bedroom is at the bottom left of the plan, then on the bottom right of the plan on the eaves side and in the second children’s room. Living room next to the corner windows at the bottom of the plan, a floor-to-ceiling one? (see attachment)

Technikraum hat noch gar kein Fenster. Absurd! Ja lass mal Licht rein in die Bude. Is ja ein finsteres Loch.

A window takes up too much space for me in the TRM, which I need for technology and shelves.

....turn the house, turn the house!
Do it, do it, yes, do it!

A window takes up too much space for me in the TRM,
which I need for technology and shelves.

But you don't want to ruin your eyes, do you? And maybe let some air in sometimes? I didn't read whether you are getting a controlled residential ventilation system, but even with that...there's technology, you do laundry, you dry, etc....you might want to open a window sometimes.

PS: The house...turn it, do it!

Is with controlled residential ventilation in the house. TRM really doesn't want or need a window. The rotation sounds really good on the plan, but it also has disadvantages with the adjacent buildings and the room layout. However, it is not completely off the table yet
(Somehow due to the subtle messages here)

....turn the house, turn the house! Do it, do it, yes, do it!

offers disadvantages with the adjacent building

We don't know them, do we? Maybe you can post a plan/sketch?

...and the room layout

I don't believe that yet, as mentioned you would have to rearrange.

TRM really doesn't want and need a window.

Ok, I believe you don't need one... even then I wouldn't equip any room in a house without a window (unless mandatory). Cost-wise that's not the dealbreaker now. Make a light strip, you can put shelves underneath... but it's your decision.