New single-family house 160-170 sqm, 3 children's rooms

Thank you very much for the first input. Here are a few quick answers to that:

Where are they then? - I don’t see them at Jette life, and that would be comparable in size here - Jette Limited less so.

In the show house in Fallingbostel. You can see it on the Vierbrock site.

Why this long driveway? Where do the 2m slope at the end come from? [...] Why not two stories for 4 people and a gable roof as an expansion reserve for child 3-4?

- The driveway to the street is predetermined and unfortunately the 15m distance to the street also applies to the carport. That means we can either put it on the south side of the house or build the carport on the north side with the longer driveway (which already exists). - The slope is natural, the property slopes down towards the river meadow. - The idea is appealing, but both neighbors have 1.5-story houses (on one side with a large (100sqm) flat roof extension). We would have to get that approved by the authorities. The building permit was applied for by the seller of the property with 1.5 stories. The authority was quite vague in the discussion: "it must fit in, please feel free to show us designs before you submit the building application."

I would wait a bit longer with building a large house and just see whether anything positive happens regarding family planning at all A house with two empty children’s rooms can be filled with hobbies and guests, but 3 children’s rooms plus expansion reserve is quite a lot...

yes, that is certainly one approach. The land is there now. And whether the construction price/interest rate situation will look better in 1,2,3 years? We are not in a hurry, but now that the land is there, of course we are eager to get started

Regarding the airspace. I would also like to design it symmetrically. That still bothers me at the moment.

That means you want to create a kind of split level through this staircase? At the beginning, you had written possibly 2 floors. Does the building preliminary request mention anything about knee wall height, ridge height, roof pitch?

i.e. you want to create a kind of split level with this staircase?

In combination with the entrance doors to the living room very accident-prone.

I also consider the staircase to the upper floor dangerous, especially since small children are going to be born into the house. This is not about children who can already "handle" stairs.

The two-headed staircase is a stupid gimmick - when a house is designed by a fashion designer, this may be a kind of fine dust cocktail cherry that is a must, but in everyday life it means nothing more than a negative hurdle race within the attic. If there is an air space, then I would find asymmetry a spice. What does the terrain say about deepening the living room? - please upload a more precise height profile of this area!

On the construction site, the terrain slopes down by about 30cm, then drops by two meters, so that the view from the ground floor more or less "over" the meadows. I don't have a graphic representation of it right now.

For a proper split level, you would have to build into the slope. For us, it was more about following the topology and increasing the height of the room. For this ~30cm, we would need two steps (so just one intermediate step), meaning not a proper staircase. It might not be as practical as everything on one level, but we imagine it to be cozier than having kitchen, dining, and living completely together. This way (plus a fireplace as a room divider), we imagine the living area to be more comfortable.

So you want to create a kind of split level with this staircase? At the beginning, you wrote maybe 2 stories. Does the building preliminary inquiry mention anything about knee wall height, ridge height, roof pitch?

The building preliminary inquiry only states "Construction of a single-family house in accordance with the neighboring buildings, with a finished attic and a floor area of 105sqm plus a double carport. In an initial conversation, it became clear that we are allowed to build larger. Regarding everything else, it said 'cannot be ruled out, please come with a design, then we will take a look at it.'"

Apart from the fact that I find the lowered living space extremely impractical, I appreciate that your budget does not accommodate it.

Get rid of this Jette staircase. It may be justified in the original house, but not here. Limited budget, high space requirements.
With your budget, you will get a house in the planned size. Only for frills, it is not enough.

What about the neighboring buildings? Knee wall, roof pitch?