Floor plan design of a semi-detached house 115 m² for a family of 3

The staircase immediately caught my eye as well. And once again the exit door in the [Hauswirtschaftsraum], I would skip it here too, as it takes up space in the [Hauswirtschaftsraum]. Otherwise, Yvonne has pretty much mentioned everything that I would have noticed.
One more question, what knee wall height is planned on the upper floor? It looks like about 135 to 150 cm.

Hello, yes, I know the draft. The problem is, many things no longer work properly. First of all, the staircase, which affects everything: it is below standard, so very difficult to walk on and therefore prone to danger. If you look here: https://www.hausbau-forum.de/threads/grundriss-planung-unbedingt-vor-beitrag-erstellung-lesen.11714/

at the very bottom, there are the minimum dimensions to be aimed for. And yes, if you are tall and accept it, you can also build with 200 x 220, but you compress the staircase to 189 x 175. That is simply steep, the steps narrow... and since they taper, very dangerous. You would be annoyed every day. I also do not even know if it still counts as an emergency escape route. Because there is supposed to be a storage room underneath, you will limit the staircase with walls. So, you will hardly get furniture or a ladder upstairs.

You are right, I had almost suspected that the staircase is planned too steep and narrow. But does that also apply to the original floor plan draft? Basically, for example, we could also imagine just separating the staircase slightly with a wall on the side, if that makes sense!? Just not as open as we currently have it...

The kitchen in your plan is not functional. Your tall cabinets are not 60 cm wide. For two tall cabinets for fridge and oven/pantry, you have to plan 130, for three 190; a cooking island should be 90 cm deep so that the splashing fat stays on the surface and does not splash on the floor at the back.

Yes, that seems to be correct... the kitchen was so far inserted more as a placeholder with the program’s given dimensions. To plan concretely, these naturally do not work.

With 6 meters width, dividing the open living space into two main areas is simply stupid. Basically, hardly anything works in the ground floor except guest WC, hallway, and utility room. Similarly upstairs: the bathroom there works for 1-2 people together. The bedroom is so compressed in your plan that the door nearly hits the wardrobe. Possibly, in the area of the door, you cannot put a 60 cm cabinet because it would block the door hinge. Furthermore, your dimensions are not correct? At least you are planning with dimensions that are not congruent with the original plan.

I am very sorry about the measurements; I actually wanted to mention that as well. In fact, I did not quite manage to take all the correct dimensions into account... And thanks for the hint regarding the bedroom, that is actually rather unfortunate....

Basically, for example, you can halve the WC, you don’t waste much time on that. And you should forget about a 10 sqm hallway in a 115 sqm semi-detached house. Nice niche/cabinet _in_ the hallway, but no large extra niche. It is quite clear that one cannot expect miracles from the space. But you should also bow to what is available and make the best of it. Placing the staircase entrance in the hallway affects other things. Maybe it will still work out in the coming days (I will give it a try), but the consequence is that the staircase must start further at the top of the plan and therefore the main room cannot be zoned nicely. I would then place the kitchen on the long middle wall.

True, we probably have to give up some ideas and try to use the available space as best as possible.

I get the impression that you are not impressed by the specifications and comments now and are desperately sticking to your draft without seeing that it is not even worth building?!

But you were aware at signing that there is a lack of storage space, even without an attic?

That seems to come across wrongly... I am happy to accept suggestions on how to distribute or design everything more nicely. And we haven’t signed yet; we are still in the initial negotiations, and financing is not yet finally clarified.

Thank you for your comments.

That is unfortunately also a size that makes more sense as a bungalow or apartment if you build without a basement. In the house, you lose a lot of the small area to traffic routes. I remember such small terraced houses from my childhood. Today, two of these houses are often combined into one.

The staircase immediately caught my eye as well. And once again the exit door at the utility room, I would also skip that here, as it takes up space in the utility room. Otherwise, Yvonne has already mentioned pretty much everything that I would have noticed as well. One more question, what knee wall height is planned for the upper floor? Looks like about 135 to 150 cm.

Okay, let's think about it, we only considered it potentially practical to avoid going through the living area with muddy clothes, especially for our child. But we will consider it. The knee wall height is 1.69, here is the cross-section through the house.

So, I had already been tinkering with this for days. The goal is always to have a small but functional hallway on the ground floor and to generate as much as possible in the open-plan area. The problem here is always, but no matter what I do, the roof pitch/knee wall on the upper floor. Because: the location of the shower and bathtub makes sense there. Moving the shower takes up too much volume elsewhere, and the bathtub's position allows good use of the sloping roof.

I’ll pin a screenshot of the ground floor with a different staircase, where the upper floor still doesn’t work, as well as a planned townhouse, which was actually built that way (4 floors and 13 meters long). Why I’m doing this: the clients' wish was to accommodate a master bathroom in the attic despite a minimal knee wall and shallow roof pitch. We managed this by placing the bathroom in the middle and the office under the sloping roof.

And once again the exit door at the utility room,

I usually ignore such details... Yes, creating a second hallway and second entrance simply makes no sense here at all. Muddy shoes where laundry is washed and probably also clean laundry is temporarily stored...