Floor plan, house layout EFW 150m2, basement + granny flat - feedback desired

We have looked at countless solutions with a basement in the area. The visual and spatial separation appeals to us conceptually.

As laymen, we could draw as much as we wanted. Without a professional program and various sizes and inputs on walls, ceilings, etc., we could not progress beyond a certain point. Then we involved the freelance architect and discussed the inputs (longlist, granny flat along with some ideas and photos). From the beginning, we asked the architect to place the height as high as possible. This has not happened to this day. Instead of discarding the design, we have obviously started optimizing ourselves stuck within this grid. Regarding the granny flat, it was then about how we could get a bedroom compact and a multipurpose room as large as possible. The result: many compromises, the granny flat as it is. Conclusion with your input so far: we are going back to the drawing board and trying a completely different design.

That will be the best. But then the architect should also tear up the old specification sheet, otherwise it will not be a real relaunch. No requirements for a supposedly skillful "jack of all trades" height placement.

We always assume one person for the granny flat who is in the last stage of life. Now that means less than 30m2 from the city center 5th floor. Eventually it means for grandma/grandpa 2 to leave a house that is already too big anyway.

If the parents-in-law's house is too big, the individual parent should form a shared flat with them. Then they do not have to die in the right order to free up the basement hole one after the other, whose “bedroom” is an alcove bed that is not senior-friendly even for a lively seventy-year-old. This way, the granny flat is not suitable for a senior themselves, but only for the caregiver. Raising the granny flat by 60 cm or anything else to be able to look out from this foregrave certainly could not save this botched planning. Better build an above-ground guest room where the three (in-law) parents can alternately escape from their shared flat for a grandchild week. As a suite with a bathroom that then relieves the morning toilet bottleneck during the children’s teenage years.

That's exactly why we place the kitchen in the east.
In summer it's simple: terrace only.

In spring and in autumn as well as winter, you spend the day with kids somewhere in the area of the living room / dining area / window seat.

If that's possible, okay. But then the living room is in the east and significantly darker, especially if it remains separated in an L-shape.

I think we are talking past each other.
Or rather, I don’t currently understand your argument.
The dining area and kitchen should benefit from plenty of daylight. Exactly. The dining table is very well placed exactly where it is. However, if you stand in your kitchen from the afternoon on, then you need artificial light. Your kitchen window is not enough for that. Your terrace is on the south by the couch, so currently a longer way from the fridge to the grill. In the dark season it’s dark anyway from the afternoon on. So you don’t have the opportunity to benefit from daylight on the sofa anyway, and you need it less on the sofa as well. Watching TV it even disturbs it. So you place the kitchen in the brightest corner by the terrace, because the sofa gets the least light all year round.

If we have a net depth of 120,

But you don't. You have RBM 115 there, minus plaster and tolerances that's just over 100. With baseboards and some circulation space between furniture and wall, you have less than 100 cm left.

Ok. Makes sense. Thanks for explaining.

Assuming the [Einliegerwohnung] is completely removed. What would be your comments? Swap kitchen and living room. Rethink pantry. What else?

Ok. Makes sense. Thanks for explaining. Assuming the granny flat is completely removed. What would be your comments? Swap kitchen and living room. Rethink pantry. What else?

The question comes up repeatedly, which in my opinion is pointless. The granny flat is essential. If it is removed, you plan completely new - which you are planning anyway.

Have you ever lived very closely with these family members for some time? People do not become easier with age and often things go disastrously wrong, even if you got along perfectly well before...

Assuming the granny flat was removed. What about the floor plan in ground floor / upper floor is worth improving?

You have already received quite a few answers. So once again.

I’m trying to figure it out based on the price per m2. Simplified 40m2 granny flat at 3000 EUR / m2 = 120k + stairs 20k + land 25k? plus excavation and disposal (which I see as given with a basement anyway) and possibly some buffer = 165 - 190k. Is that about right?
Then that would effectively be about 4-5k/m2.

You captured that pretty well. However, the retaining walls around the stairs and the terrace are quite a bit more expensive.

Attached is the summary.

In case you build without a basement after all, the soil report needs to be adjusted.

Hopefully raising the house is off the table by now. But it does make sense if you do it like the neighbors. Then also move the house further back like the neighbors.

I myself once lived in such a basement apartment. After 3 months I could afford something better.

As I said, I have a granny flat. The S-parents live there. That has been working very well for over 20 years now. Meanwhile, both SE are in need of care and can still live here. We retrofitted a stair lift because the bedroom is on the upper floor. Our plot also has a slight slope. 1m on the plot. That brings little light into the basement and you can see at most the turf.