Low ridge height results in a low knee wall

17x14 results in a tiny 238 sqm footprint, thus approx. 200 sqm living space + storage space in the attic.

But the "building window" does not include the 3m distance to both neighbors, so remaining is 11*14 = 154 sqm. If you subtract the thickness of the walls all around, e.g. 40 cm (?), it is 10.20 * 13.20. Remaining are 134 sqm. Deduct the utility room with the technology, washing machine, dryer, freezer chest, storage shelf. I say 10 sqm? Then you also have a house entrance with a hallway, wardrobe, does that count as "living space" in a calculation? I always thought no. At least in the house I’m renting now, I don’t pay rent for that separately (it’s included in the total rent). But I think there are rules on how to calculate living space? If I subtract another 10 sqm for hallway, then it’s 114 sqm living space. And how do I get into the attic? Surely via stairs and not via some hook where you pull down a folded staircase from the ceiling? Let’s estimate 5 sqm for stairs, no idea. So that would be 110 sqm living space + the mentioned x sqm storage space in the attic. That would be the settlement house with a pointed gable roof—like shown in the picture.

What am I overlooking?
I want to move into a new house that is energetically future-proof, but I also want to feel comfortable in it.
If what I said above is not nonsense, then it doesn’t work.

Example: Danhaus, 1l house. Danhaus Polarwall = even 44 cm thick. However, I could not find any information about the ridge height or hear it in the video. Do the prefab house manufacturers not know that the development plans often specify a maximum house height? What use are all the great floor plans to me if the most important details, namely the height of the house and the necessary exterior dimensions, are disregarded.

In the model home estates, at least I don’t get the impression that any house is constrained to a certain height. These are mostly stately houses, with sometimes a great sense of space. You get tempted, and once home, you realize (or not) that it just doesn’t work.

Remaining 134 sqm. Deducting the utility room with the equipment, washing machine, dryer, freezer chest, storage shelf. Shall I say 10 sqm? Then there is also an entrance with a hallway, wardrobe, does that count as "living space" in a calculation? I always thought no.

No, it remains 134 sqm just like in all other apartments and houses. And if I then add 50% of your terrace, the living space will even be larger.

Then you’ll have to be creative with your architect. With a ridge height of 7.20m you can plan something nice. The floor/ceiling structure just needs to be optimized or you have to be satisfied with 265 cm (that will be more than 90% of all houses).

P.S. The settlement house usually has a living space of only 70-80 sqm. You can build 170-180 sqm (estimated with the attic). So don’t compare yourself with a settlement house builder. If you don’t like the plot, buy another one. If there is no other, work on your main ideas.

No, it remains 134sqm like all the other apartments and houses too. And if I then add 50% of your terrace, the living area actually becomes even larger.

Then you have to be creative with your architect. With a 7.20m ridge height, you can definitely plan something nice. The floor/ceiling construction just has to be optimized or you have to be satisfied with 265cm (which will already be more than 90% of all houses).

Thank you, Nordannay. I'm just a layman and ask stupid questions. Half the terrace = living area? Who came up with something like that?

Anyway, today I sent two letters to FHHs, they can take some time over the next few days to think about what’s possible... I can’t calculate it, nor can I guess. Therefore, thanks in advance to everyone with their constructive contributions.

I’ll probably still go to the municipality and ask them what they were thinking.

In any case, I/we are noticing more and more (finally once again) what advantages renting a house has... but that’s another question/perspective. If only it weren’t for this oil consumption.

@ Nordannay, yes, my wife thinks a low knee wall is stupid, she is right, so am I.
If everything under the roof is counted as living space, then it’s like in the Danhaus video... no no, that’s not acceptable.

Well observed, I’ll let the plot go. Let someone buy it who can handle it, I have no emotions about it. However, I would have them up to the top edge if after the purchase I found out I bought the wrong plot.

Back to the main question that a seller blurted out: why do you even want to build?
Honest answer, because I can, and because I (maybe) want to. A house would be a nice project if no cardinal errors were made. The wrong plot would be one of those.