Improvement suggestions for the house floor plan in the greenery

Regarding the costs: Electricity and electrical work will be done by ourselves. Floors as well. Outdoor facilities too, or rather family. This already eliminates a certain portion of the costs. Of course, it still needs to be calculated in more detail...

I am also in favor of painting the [Einliegerwohnung]. What do you think about it? Strangers in the house is actually a problem. Can we somehow convince you?

yes absolutely.
This is only for preparation, so that if it becomes a Kfw 40 Plus, we can still take advantage of the 15k subsidy and the loan.
It is not planned to let strangers into the house.

A granny flat requires a bathroom, sleeping area, and cooking facilities.

Storage room and washing machine connection?
Anyway: fitting a kitchenette and a living-bedroom into 15 sqm doesn’t work. The turnover due to lack of space and dissatisfaction would be very high. I think the savings are made in the wrong place here.

It is only about what is theoretically possible or preparatory. The front area is also not as important to me as the kitchen and living area. Should the living area remain in the north? What about the [Speis] and [Treppe]? Would an exchange be sensible?

It is only about what is theoretically possible or preparatory.
The front area is not as important to me as the kitchen and living area.
Keep the living area in the north? What about the pantry and stairs? Would a swap be sensible?

It's a pity about the driveway. However, you could also have the driveway go at a 90 degree angle and then place the garage to the north with the opening to the south.
I would work it through.
But otherwise, I would have everything rotated here, for example the kitchen as the first room you enter, ... oh..., honestly: this granny flat room, Garden best place with the bathroom.