Floor plan - plot for a single-family house, slight slope approx. 175m²

the slope is 12% in the area of the house. That is about 1.45m with approximately 12 m house length. Ergo per basement!

Oh, a clean good floor plan that will work, parents separated from children's rooms have a good size. However, I would omit the children's bathroom and plan for storage.

Oh, a clean good floor plan that will work, parents separated from children's rooms that have a good size. But I would omit the children's bathroom and plan storage space.

I don't want to miss the children's bathroom. There is enough storage space in the basement.

The original house is the "Evolution139," the original dimensions are 8.17x10.67m.
The grid extensions were said to be the most cost-effective way to enlarge the floor area, we were told. Cheaper than, for example, a bay window...
Currently planned dimensions are 9.41x11.92m. These are already the basis for the price calculation.

A bay window, however, extends the floor area only in one place. What exactly the grid jump is here, I have not yet understood – I suspect 25 cm. For safety, I would thoroughly question the price calculation; I can well imagine that a seller simply "calculated" "catalog price times new floor area divided by old floor area." Surely the cellar is also taken into account, and who provided that?
Also, for construction-related reasons, I put a big question mark behind the idea of enlarging the base model in both floor dimensions. Then an individual plan actually makes more sense. It is better to only extend a catalog house in the "wheelbase," not in the "track width" – so only in the ridge direction.

Why the walls in the "nice" plans have different colors, I do not know.

But that is a hot question.

Always orient all plans equally toward the north.

However, in case of doubt, I prefer reading south-facing plans rather than upside-down labels ;-)
"Reader-friendly" questioners therefore already consider this when drawing. Unfortunately, it is much easier for laypeople to vary floor plans in the same orientation as in the catalog. Paper catalogs were turned, but who sets their monitor upside down?

On the aforementioned page, besides the development plan, there is also the civil engineering plan, from which I read the height information (yellow wavy line?)? But I otherwise do not read building plans...

@11ant the slope is 12% in the area of the house. That is about 1.45m over approximately 12m house length. Ergo per cellar!

I regularly read such plans. And the municipality's website allows the conclusion that the contour lines refer to the original terrain, whose slope direction, however, is practically reversed during the development work (apparently due to flood protection reasons). In this respect, I interpret the entered relative measurements +0.40 / +1.25 and the like as the "new facts" after completion of the municipal terrain modeling. That's why I said "gamechanger": according to the contour lines, a cellar would indeed protrude half a story above the terrain at the northern street, while the slope according to the civil engineering figures not only runs in the opposite direction but, due to the amplitude, even reaches the verdict according to the cellar rule of "can-be or even luxury cellar." One meter twenty slope or eighty centimeters rise is a difference of two meters – this is exactly worth clarifying.

Number of parking spaces: 2

Unfortunately, there are no measurements for the carport, but in proportion to the house, it is drawn with about 3-3.5m width? Right?

Where is the second parking space?

Usually, one says about 3 m width for a parking space and additionally you will need about 1.5m between the parking space and the house to make the entrance platform for the side entrance and to get the bikes past the shed next to the car.

Are there pictures of the property? Otherwise, we will still speculate here for a while about the slope. Has the property already been surveyed for planning with heights?