Floor plan: New construction on existing bungalow basement, 1.5-story

What still doesn't fit:

I just say: Pfu scher ta schen !

Are there any further hints/criticism/tips?

Without much effort and screenshots, for example, I find it very difficult to follow what was and what is supposed to be. Maybe you could post the before and after in the same orientation.

I think it's quite good. What catches my eye: I would give the bathroom and bedroom about 15cm more depth. The children hardly notice it, but in the bedroom you could then comfortably place a large sideboard or another wardrobe against the wall. Otherwise, the floor space would be far too tight for me. I would move the toilet together with the dormer window closer to the bathtub to create space for a large laundry basket. The 40cm behind the door are probably not enough and are already used for a shelf with towels and detergent. With 5 people, the machine runs almost constantly, and in my opinion, the space is far too small. Basically, it’s a pity that the washing machine & co. are in the bathroom, but I don't see an alternative here without tearing down too much.

On the ground floor, my biggest problem would be the direct access from the dining room to the guest toilet. I also find the arrangement of the sanitary fixtures awful. I would enlarge the bathroom slightly and arrange the fixtures in a row. In addition, I would create a separate hallway, so that there is an additional separation from the guest area and noises + smells don’t directly reach the dining table.



I don’t know if this has already been discussed here and I don’t want to read everything now, but you lose quite a bit of space on the ground floor because the stairs are not aligned. I assume, since the neighbor is building two stories, it would hardly have been a problem to implement a dormer for the stairs, right?

Without much work and screenshots, I find it very difficult, for example, to follow what was and what is supposed to be. Maybe you could post the before and after in the same orientation.

Attached is the comparison of the existing condition with our planning. The views are from the approval planning, as I currently do not have more recent ones. Details (e.g., with the window positions) may therefore differ from the floor plan.

I think that's quite good. What catches my eye:

We see exactly the same optimization potentials. We'll see what else can be done here.

I don't know if this has already been discussed here and don't want to reread everything now, but you lose quite a bit of space on the ground floor because the stairs are not aligned. I assume that since the neighbor is building two stories, it wouldn't have been much of a problem to push through a dormer for the stairs, right?

The issue with the basement stairs is somewhat delicate because the uninsulated existing basement must be outside the thermal envelope (KfW40). An open, stacked stairwell was therefore not possible, and we pursued the solution with separate stairs. However, I wonder whether it would have been possible to insulate between the stairs (i.e., on the underside of the upper floor stairs), effectively a "closed" stairwell. A disadvantage of combined stairs would have been the very narrow room in the northeast above the utility room. At this point, however, we would probably no longer be willing to make such drastic changes to the floor plan.

I just say: Pfu scher ta schen !

Our architect was once a bricklayer in a previous life, which is why it is unfortunately somewhat surprising. We will address this again and try to optimize.