Alignment of house on property

So, if nothing else goes wrong now, our desired plot will soon belong to us :)

So the planning can begin. Even though I already know that many here will probably roll their eyes, I have fallen in love with the Danhaus Schönhagen.
I can't yet say if I would actually build with them, but aesthetically it will probably end up being something along those lines.
What is even more important, however, is the right floor plan, so I would appreciate it if you could take a look at my current draft.

Development plan/restrictions
Plot size: 796 sqm
Slope: no
Floor area ratio: 0.2
Floor space index: 0.4
Building window, building line and boundary: 5 meters to the street, 3 meters to the neighbor
Edge development: garage present, should stay
Number of parking spaces: none (on the street)
Maximum heights/limits: none, buildable according to §34

Requirements of the builders
Style, roof type, building type: Nordic, modern country house, gable roof
Basement, floors: no basement, 1.5 floors
Number of people, ages: 5 (44, 44, 12, 8, 4)
Room needs on the ground floor: open living area, preferably L-shaped, spacious entrance area/wardrobe, bathroom with shower, guest room, utility room
Room needs on the upper floor: 4 bedrooms, bathroom with tub and shower, storage room
Guests per year: approx. 5
Open or closed architecture: a mix of both ;)
Conservative or modern construction: modern
Open kitchen, cooking island: open with island
Number of dining seats: 6
Fireplace: no
Music/stereo wall: no
Balcony, roof terrace: no
Garage, carport: yes, present
Utility garden, greenhouse: yes, in the somewhat distant future a small vegetable garden is desired
Other wishes/special features/daily routine, also reasons why this or that should or should not be:

We would like the living room to be out of sight from the kitchen, the staircase not in the dirty area of the entrance and preferably with the possibility of storage underneath.
A small storage closet for vacuum cleaner etc. on the upper floor would also be nice; I'm not a very good housekeeper and want to keep it as easy as possible ;)

House draft
Who designed it:
-Do-it-Yourself, based on Danhaus Schönhagen
What do you particularly like? Why?: open large hallway, waste of space?
What do you dislike? Why?: door to the living room, brings unrest?
Personal price limit for the house, including equipment: 480,000 € (kitchen and outdoor facilities not included)
Preferred heating technology: air/water heat pump

What is the most important/fundamental question about the floor plan summarized in 130 characters?

Is the room layout roughly okay? How do you see the orientation on the plot? I would like to position the house at the front by the street at the 5 meter line and also have the entrance on the street side.
I would actually prefer the bathroom on the opposite side and the children's room where the bathroom is now. But due to the staircase, I have no other idea how to implement this.
I don't like the door to the living room there, but I would like the option to go to the toilet in the evening in comfy clothes without having to go around possibly teens eating in the kitchen. Do you have any ideas?
The staircase probably doesn't fit dimension-wise anyway...
And will the upper floor work out reasonably with the roof slopes? The Danhaus has a dormer, which doesn't fit with my upper floor layout, right? Although the bathroom could be a bit smaller, then it should work again, right? Although I wouldn't build the dormer anyway, since otherwise anyone from the street could see us on the way to the bathroom...

Before I get completely lost here, I'm sending the post off and hope for constructive criticism :) Many thanks!

So, if nothing else goes wrong now, our desired plot will soon be ours :) [...]
Site coverage ratio: 0.2
Floor area ratio: 0.4 [...]
Maximum heights/limits: none, buildable according to §34

First of all, congratulations on the plot and praise for linking the previous thread yourself. What makes me a bit suspicious is the combination of §34 on the one hand but on the other hand site coverage ratio specifications like in development plans.

So the planning can start. Even though I already know that many here will probably roll their eyes, I have fallen in love with the Danhaus Schönhagen.

Fall in love with whatever you want, but methodically this is unwise here:

Whether I would also build with them, I cannot yet assess, but in terms of appearance it will probably come down to something like that.
What is even more important, however, is the appropriate floor plan, so I would be happy if you could take a look at my current draft.

A specific house model as a pure source of ideas "helps" so little insofar as it wastes exactly the actual advantages of the catalog house. These lie in the tried and tested nature of the design and the routine of execution. The proven nature of the design is diminished if it is changed substantially. And unfortunately the routine in execution does not transfer if you realize a Müller house design by Mayerbau.

The "donor design" is already the wrong basic model here insofar as the number of children's rooms does not fit. Also, you apparently took the staircase shape of the catalog house for a design gimmick, but it is significantly responsible for the functionality of the design. In this house size, you automatically build bottlenecks if you already change "only" such seeming minor things as "turning back" the staircase. These may be only two square meters per floor primarily affected, but the effects reach further.

As a result, you "may" therefore "abandon all hopes" to arrive at a similar price with the house design as an idea donor at roughly the same external dimensions. A catalog house as the basic model is still not automatically wrong for you, but the special feature(s) must be observed. The crux is the third children's room, which most catalog house designs do not provide. From this predicament, there are basically three ways:

A.: one takes a house design that has a variant "deal: study in exchange for a smaller living room," as, to my knowledge, is practiced especially by Town & Country;
B.: one builds a catalog house "as a stretch limousine with extended wheelbase," i.e. inserts a whole room in the ridge axis into the otherwise unchanged catalog house design. This naturally affects both floors, so you could also apply the trick with a basic model with only one children's room (example Town & Country: Raumwunder 90);
C.: one uses a "country house" design and changes the attic into a vertical upper floor ("city villa"), so that the otherwise knee-wall-near zones become standing-height floor space. For the "gain" of a whole extra room to be sufficient, an expansion of the house width by about one meter or two grid steps will be necessary.

With ALL further-reaching operations, the proximity to the original price of the basic catalog house will be left accordingly!

In a very significant point, you have already decisively "reshuffled" your variation of the catalog design: namely by relocating the bathroom somewhere completely different. This has consequences not only for the downpipes and corresponding drywall decorations but also for comparable intertwinings in the layout of the controlled residential ventilation "piping." This is a classic disease of the attempt to carry out major replanning without changing base areas or the house outline! (and it will "sure as 'Amen' in church" threaten you similarly with another basic model but the same methodology). The consequences are always the same: 1. bottlenecks, 2. distortions in the system of ceiling penetrations and the like, 3. drywall difficulties.

Phew, at least you start with a compliment

What makes me a bit suspicious is the combination of on the one hand §34 but on the other hand floor area figures like in development plans.

That seems to be normal here in Berlin though, at least that’s what I read in all the property exposés.

In the Danhaus there are actually 3 children's rooms on the upper floor, my intention in turning the stairs was more about the living room, I would simply like it to be a bit more protected and have its own door.
However, we will be there at the show home at the beginning of October anyway, so I can take a look at it then.

But I can understand your objections and will keep trying.

What do you think in general about the orientation of the house and the rooms on the property?

There are actually 3 children's rooms on the upper floor in the Danhaus, my intention to turn the stairs was more for the living room, I simply would have liked it to be a bit more sheltered and with its own door.

Oh, no, then I wouldn't mess with the original (and if everything else fits, take the house from this provider as well).

But I can understand your objections and will keep trying.

Or leave it as it is, see above.

What do you generally say about the orientation of the house and the rooms on the plot?

I find it okay, and would then forego demolishing the garage, since under these circumstances it is already usable, and for cars not only in Rodgau applies "who cares about architecture anyway" ;-)

I have read all over the internet and find many people complaining about how chaotic and unreliable Danhaus is... That worries me a bit. But in terms of appearance, they are hard to beat for me and my taste, and as far as I can see, the quality also seems to be okay. But we'll see how it turns out in direct contact.

The garage should definitely stay, it looks a bit worn out, but it is solid and just needs a new coat of paint. It's questionable whether it will ever see a car anyway, parking in front of the property works perfectly :)

I find the draft for a first attempt very good. The problem, as you suspected, is certainly the staircase, which is too small. But it is not unrealistic to build it like this or similarly. What still looks great here with 3 lines can quickly become very large with real walls and stairs. That will make the budget tight.

What is also questionable is the orientation. At the moment it is more of an I than an L. In my opinion, the living room is far too long and you hide behind the stairs to avoid seeing the kitchen. But the space to the right of the dining table is useless and built in vain. The whole thing faces southeast – in the evening it will be as dark in the kitchen as in a bear’s... cave. If you want the L anyway, then plan it that way and rotate the house (like the demolition house). Put the kitchen in the bay window for lots of light from the south and the living area towards the garden. That saves space and money.