Floor plan planning shortly before submitting the building application

We now have 2.60m in the sleeping floor and 2.75m in the living floor. The living floor feels spacious, just as we imagine it. 2.75m is sufficient. But less than 2.60m in the sleeping floor is not necessary. I think this is just right. Especially with [Kontrollierte-Wohnraumlüftung], I don't find it very pleasant if it hangs 10-20cm lower where I sleep.

Can you make use of this?

But less than 2.60m in the sleeping area is not necessary. I think that is just right. Especially with [Kontrollierte-Wohnraumlüftung], I don't like it when it hangs 10-20cm lower where I sleep.

Ok, you don't want less! It would definitely be possible [emoji6]
Even 2.45m in bedrooms, which usually have smaller square footage, is anything but low or oppressive - unless you have a 40sqm bedroom [emoji4]

Or are the ceilings going to be lowered to accommodate the [Kontrollierte-Wohnraumlüftung] there? Then I could understand it.

Regardless. What is your concern with the [Kontrollierte-Wohnraumlüftung]? As long as the supply air is not directly above your head, far enough away from the walls (assuming ceiling installation), and the volume flow is < 25cbm/h with a 100mm valve, I wouldn't see what a higher ceiling would bring. Or in other words: I would assume that room height has the least influence on any [Kontrollierte-Wohnraumlüftung] issues. Lower room heights would rather mean lower volume flows, which can be advantageous regarding draft sensation / noise generation. Just an idea [emoji4]

Ok, controlled residential ventilation might be exaggerated.

I don't know if the ceilings will be lowered for that. It wasn't mentioned but I also didn't question it.

No idea what I'll say to the architect tomorrow if he calls and says he spoke with the building authority and X cm have to come down – where do we take them from?

Offering to put a flat roof on it doesn’t help, right? That would be just as big a compromise as reducing the room height. Depending on how many cm it is, one would have to weigh which compromise would carry more weight. On the other hand, the building authority writes of a "slight adjustment."

Can you make anything of this?

No, I only see a lot of elevation measurements of the terrain, not of the building.

Offering to put a flat roof on it won’t help, right?

That’s right, that doesn’t help.

On the other hand, the building authority writes about a "slight adjustment".

Then they should quantify that.

Unfortunately, I have no other documents from the surveyor. It is possible that the architect received something directly from him. I will inquire about that.

The numbering is indeed the only thing that helps us further. However, is it conceivable that it is only a matter of a few centimeters here? I am curious. I fear that it has to be brought to the normal traditional floor height, because otherwise, apart from the mentioned two-story new building, there are only single-story houses with gable roofs. And not even with an above-average high ground floor.