Single-family house (2 floors + residential basement + developed attic) approximately 200 sqm - changes

I believe the problem is the 50 degree roof pitch. I think it's good that you are thinking sustainably and want to be self-sufficient. However, one should still consider the economic viability. I don't think a 50 degree roof, which then extends over 2 floors in height, makes sense here. Basement, ground floor, upper floor, and a "flat" gable or hip roof, and you can simply use a standard floor plan.

Please remove the intermediate floor in the attic. Just imagine that we will build a high and larger loft bed (with a steep ladder) there due to the height. However, this only matters for the floor plan in that the rooms don't have to be huge because the bed "comes up high." I am not a carpenter, but wood is my element. I have several carpenters among my acquaintances and family whom I can rely on but haven’t needed to so far. In our apartment, in the 20sqm children's room, we currently also have a loft bed, next to it a half-high play platform where the 2-year-old should not climb up, and above the platform under the ceiling a walkable/kneelable storage area.

I think the problem is the 50-degree roof pitch. I appreciate that you are thinking sustainably and want to be self-sufficient. However, you should still consider the economic viability. I don't think a 50-degree roof, which then extends over more than two floors in height, makes sense here. Basement, ground floor, upper floor, and a "flat" gable or hip roof, and you can simply use a standard floor plan.

Besides sustainability (photovoltaics in winter), the 50-degree roof has the advantage that you can build the staircase up "closer" to the edge because the roof rises more quickly and that it just allows for a landing/loft bed. We just want to actually use it! The disadvantages I know of are only visual – from the outside / church construction. Cost-wise, it doesn't cost (much) more than 35-45 degrees. A bit more wood and roof tiles, but different structural requirements because the roof presses less outward (at least that's what we were told), although that is probably offset by the higher wind load.

by the way: a 50° saddle roof is not that unusual either. it deviates 5 degrees from 45. many people don’t even notice that at a GLANCE. so it is actually a standard floor plan except for the basement and the fact that we want to convert the attic. the current floor plan can be found in a similar form in many catalogs. mostly with the entrance at the bottom of the plan (but we definitely want a windbreak/wardrobe that does not serve as a staircase or as access to other rooms like the WC). often the wall to the living room is closed off and separated by a door. we would like to have just a little openness there though.

Your upper floor is not directly below the roof. That only comes above it. So it is not an attic.

That’s why I had such a hard time with the designation. Because there were two variants of the floor plan. once with an attic and 150 knee wall and the other time just building the knee wall 1m higher (I was talking about raising it onto the knee wall) and building the floor without sloping ceilings. I had a hard time, with such little deviation, calling one attic and the other upper floor and mistakenly always mixed them up and then called the floor above (roof/peaked) attic.

by the way: 50° saddle roof is now also not so unusual. it deviates 5 degrees from 45. many don't even notice that at a GLANCE. so it is actually a standard layout except for the basement and the fact that we want to convert the attic.

With the difference that with you there are two full floors under the 50° roof. The usual single-family house with a steep roof mostly has one (rather low) knee wall on the upper floor. And that results in completely different proportions. I suspect it also looks significantly more like a multi-family house with you because of that.

The difference is that with you, under the 50° roof, there are two full stories. The usual single-family house with a steep roof mostly has a (rather low) knee wall on the upper floor. And that results in very different proportions. I suspect that is why it looks much more like a multi-family house with you.

But since there are 2.5 to 3.5 story multi-family houses all around (in the same row), it could look like we renovated an old one instead of building new. The other houses don’t have a 50-degree gable but one more story at over 45 degrees, then a change to about 30 degrees. At the building permit authority, we discussed a 2.5-story new build with a gable roof and it was considered very harmonious.