Floor plan of a semi-detached house 7x16m on 390sqm in a settlement

I find your project quite exciting, as it somewhat resembles my "project that didn’t happen."

Well, many reasons come to mind besides "that would, among other things, straighten out the narrow shape." Your plot is already very narrow, which places high demands on the floor plan. At the same time, you try to stuff all wishes, ideas, current trends, etc., into your floor plan, which I think would rather fit into a square-shaped house.

When planning, one should consider a longer-term usage concept. You yourself say that eventually you want to move into the attic. Well, I would prefer the bedroom on the ground floor with an en suite bathroom. I’ll compare it with my "project that didn’t happen": try searching Google Images for "Zweifamilienhaus Xanten," there is an identical house (unfortunately no floor plan visible, which I can email to you (expert report) if desired) "close to completion." It’s freestanding, but they planned one side without windows. As the name suggests, it was planned as a two-family house, one apartment downstairs and one upstairs. I think you can also apply that to your project: build it as a two-family house, with the open living room upstairs as a play area for the kids, of course no kitchen upstairs, their own bathroom, etc. The advantage is that the house will "fit" over the years of use, meaning the kids grow up and have different needs, etc. When the kids have moved out, you could rent out the upstairs and the parents remain downstairs, going back to the bedroom on the ground floor.

Your plot is very narrow (the project that didn’t happen had a significantly larger plot). Is the neighboring house already built or can it still be planned along with yours? For such a narrow plot, I think it would be sensible to set the house further back, so you can place 2 parking spaces (or carport/garage) in the front. If that’s no longer possible: or you place the garage/carport/parking space further behind the house. That would have the disadvantage that you would have to make the driveway, but you would have enough space for the side entrance. I wouldn’t just slap a garage or carport onto the house, as then you would miss the windows again...

Your desire for a large open living/dining/kitchen area is, in my opinion, somewhat oversized. Here we are back to the bedroom on the ground floor. That would reduce the area of that section, which would do it good. Take a look at the attached picture. It shows the view into the living/dining/kitchen area with lots of light. Because of the pushed-forward dining area, they could incorporate even more windows (light). I actually found that the best part of the building. I didn’t get the impression that it was too small. If I imagine the building I actually visited compared to your floor plan (I have an incredibly long view from the entrance all the way to the rear window front of the living room, where the windows would visually get smaller and the ceiling would feel very dominant and oppressive). The conclusion would be: entrance to the side, there is no other way...

The 50 cm knee wall in the attic is just annoying for the OP.

Open spacious living area

At the beginning, with 50 cm wall thickness, it always reads that many things are impossible or difficult. But with 16 meters, one could also use the otherwise impossible way, for example, to do without a few square meters at the top and get light into the attic rooms through recesses or setbacks, i.e. facade reconstruction of windows (one currently only has the emergency window). Or you could build a small knee wall.

I would probably also work with a setback on the ground floor, e.g. on the side in the first third for the entrance.
Or an open stairwell up to the attic would also be possible to get light. Or other light channels (atrium, stairwell opening). Many make a virtue out of necessity – the justified objection from , the mentioned view through the whole house, can be turned into a positive by actually building a complete line of sight next to a straight staircase (from the front door to the terrace door), only the sofa shouldn’t be placed there ;)

According to the OP, the house should be spacious and modern/appear spacious and modern, so the OP likes openness and size here. A lot would be possible with that! You could also work with mirrored window panes on the west side. Then no one can look inside.
Of course, that costs a bit more, also due to neighbor adjustments – but the costs are not discussed here, so the forum can build castles in the air :D Architects who specialize in narrow, long designs can serve as examples and inspiration. I snooped a bit there :cool:

But as the OP responds, he actually doesn’t want any changes, only confirmation of the question whether the windows provide enough brightness.
The arguments that the kitchen is better located on the terrace side apparently do not reach him, since love for it has already developed here…

…although not ideal at all, re-locating it is not even allowed as an option.

Where should the guests sleep? And doesn’t your family need a PC space?

How do you like the drawing where the entrance is on the side?

hm... hardly anything has changed. And it has already been said several times that 6.50 is too far for watching TV. ... Why don’t you swap the living room and kitchen/dining here now? In the west, you could then use normal windows in a row. Curtains or shutters can also be your friend. I tried this this afternoon. I’m posting it now, even though I haven’t corrected any of the dimensions (it’s quite time-consuming), and since you have already decided in my opinion, it is only half finished now. I think it explains itself. Unfortunately, it’s only partially suitable for children ;) You could put up more walls in the middle, for example, consider the built-in cupboard as a pantry

actually, I would really want 2 large children's rooms