Floor plan design single-family house 190 sqm foundation slab Saarland

I have slightly revised both the ground floor and the upper floor again.

Is the garage even allowed to be a boundary structure if it is integrated into the house?

You should also reconsider the planned kitchen; at the moment, you are wearing out your feet running between the sink and the cooktop. I don't like the layout of the master area. You have the advantage of a separate bedroom, but then the bathroom is directly adjacent, so one cannot continue sleeping if the other is getting ready in the morning. So the noises coming from the bathroom in the morning, even two doors in between are not enough...

Is the garage even allowed to be a boundary construction if it is integrated into the house?

The 3-meter boundary distance must definitely be maintained.
Therefore, the roof terrace is not possible!

The pantry as a fundamental area separator on the ground floor is in my opinion a complete misplanning.
The kitchen has hardly any really usable space and is actually just a hallway.
The master bathroom is disproportionately too large – a pure ballroom.

Back to square one with a new start!

I have slightly revised both the ground floor and the upper floor again.

Unfortunately only slightly in favor of the clarity of the drawing. As far as I can still make sense of it, you go through the dressing room and the bathroom into the bedroom. The garage should be okay regarding the boundary distance, the roof terrace recedes accordingly. Overall, the structural engineering hits hard because of the recessed floor. What kind of "official" are you? - below A16 I still see a considerable inheritance necessary for this hut (or the bride has a lot of money, as we say in Cologne).

Is the garage even allowed to be a boundary development if it is integrated into the house?

With the neighbor’s signature, yes. He is then also allowed to build directly there.

You should also reconsider the planned kitchen; at the moment you are walking yourself sore between the sink and the cooktop.
I don’t like the layout of the parent’s area. The advantage is having a separate bedroom. But then the bathroom is directly adjacent, so one cannot continue sleeping well when the other gets ready in the morning. The noises that come from the bathroom in the morning at our place—two doors between are not even enough...

The sink and the cooktop are located more or less directly next to each other on the kitchen island. This is not yet properly drawn here. On the side wall, only the oven, steam oven, microwave, and coffee machine will be housed in a kind of high cabinet.

I find your concerns about the bathroom directly next to the bedroom justified. I have thought about how to solve this for a long time. I definitely want a parent’s wing that is somewhat separated from the children’s wing. It is also very important to me that there is a separate dressing room that is large enough and an extra bedroom. I oriented myself on daily routines: get up, go to the bathroom, dress in the dressing room, briefly back to the bathroom, then out. In the evening, undress through the dressing room, into the bathroom, then to bed. But I am still open to other floor plan ideas. Maybe you have an idea how this could be designed differently.

The 3-meter boundary distance must definitely be observed.
Therefore, the roof terrace is not possible!

Pantry as a fundamental area divider on the ground floor is, in my eyes, a total misplanning.
The kitchen has hardly any really usable space and is basically just a corridor.
The parent’s bathroom is disproportionately too large—a pure ballroom.

Back to square one with a fresh start!

Thanks for your answer, ypg. According to the Saarland state building regulations, the boundary distance and the roof terrace should be fine because the balcony is recessed.

What you call a pantry as an area divider on the ground floor is supposed to be a panoramic fireplace or at least a decorative fireplace, positioned at seating height and spanning a width of 150 cm. I can well understand your concerns about the kitchen. I am also not 100% happy with it yet. It is supposed to be an open kitchen in front of the generous dining area. From the kitchen, the living and dining rooms should be visible, similar to the concept in the Bien-Zenker Concept M Wuppertal. By the way, the whole floor plan is modeled after this. Maybe, as an experienced builder, you might have an idea how I could solve this more cleverly.

The bathroom is intentionally designed so large because we have been damaged by small bathrooms in our current house. We don’t want that anymore. The bathroom should be divided into an everyday area and a wellness area, which will be used occasionally. The arch at the front is supposed to represent a sauna. But I am also open to suggestions here.

Unfortunately only weakly in favor of the drawing’s clarity. As far as I can make out, you enter the bedroom through the dressing room and bathroom. The garage should be okay regarding boundary distances; the roof terrace recesses accordingly. Overall, the statics hit hard because of the stepped floor. What kind of “civil servant” are you then? — below A16, I still see a considerable inheritance needed for this place (or the bride has a good standing, as we say in Cologne).

You have correctly recognized that. The bedroom has no direct access from the corridor; otherwise, there would be too many doors, and I would have to design everything differently. But I don’t find it problematic that the bedroom is only accessed through another room. Why? I orient myself on daily routines; I don’t go directly into the bedroom anyway. According to my information and agreement, boundary building and the roof terrace should be okay. We are two senior-level civil servants and are lucky to live in an almost paid-off single-family house. That’s almost normal in Saarland.

Cologne people always have good ideas... just spill them out.