Two-family house, optimize?

Hello forum,

here are the key figures for now, if anything changes it will be updated. It was drawn with SweetHome 3D.

Development plan/restrictions
Size of the plot 750 m²
Slope south slope approx. 25%
Floor area ratio
Floor space index
Building envelope, building line and boundary B 21m x D 14m
Edge development yes
Number of parking spaces 3
Number of floors 2 full floors
Roof shape gable roof
Style
Orientation ridge orientation parallel to the street
Maximum heights/limits FH max 12m, TH 7.5m, WH 7.5m valley side
Further requirements building on the slope side

Requirements of the builders
Style, roof shape, building type wooden house
Basement, floors basement / garage
Number of people, age 5 people, 2 adults + 3 children 10, 12, 15
Room requirements on ground floor, upper floor see plan
Office: family use or home office? no
Overnight guests per year
Open or closed architecture
Conservative or modern style
Open kitchen, kitchen island kitchen island
Number of dining seats 6
Fireplace no
Music/stereo wall no
Balcony, roof terrace balcony
Garage, carport 3
Utility garden, greenhouse not yet planned
Other wishes/special features/daily routine, also reasons why this or that should or should not be we need a granny flat with at least 75m² for 3 people

House design
Who created the plan:
-Do-it-Yourself
What do you particularly like? Why?
What do you not like? Why?
Price estimate according to architect/planner:
Personal price limit for the house, including equipment: €600,000
Preferred heating technology: underfloor heating

If you have to do without, which details/extensions
-you can do without: open to suggestions
-you cannot do without:

Why did the design turn out the way it is now? For example
since we absolutely need the granny flat the design has become this big and because after 5+ drawings this should finally be the final one

A mixture of many examples from various magazines...
What makes it particularly good or bad in your eyes?

What is the most important/basic question about the floor plan summarized in 130 characters?
can it still be reduced somewhat without immediately omitting rooms

So I hope nothing is missing, otherwise please contact me.

and because after 5+ drawings this should finally be the final one

I hope not – the design belongs in the trash without further discussion. I really wondered if a troll wanted to annoy us here, but now I assume someone really wants to build here.

Just briefly the biggest pain points:
- A bathroom that opens into a dining room?
- and the mentioned dining room itself is a dark hole – you’re not serious about both, right?
- what is the purpose of the slanted wall between the hallway and dining room? Because slanted is chic???
- Main apartment bedroom in the south, so the children should live in the north! And what is that bed doing in the middle of the room? Is that really intended? I once saw that—in a report about the porn business. It made sense there because the camera can reach from all sides. But in private? I don’t know if I would feel comfortable there… and then the bedroom could also be a bit smaller
- trapped walk-in closet, this can be done differently here and then it should also be done that way
- the layout of both apartments on the ground floor is horrible! If this is how you proceed with a renovation of an old building because it’s not possible otherwise, you can accept it and try to live with it. But you are planning new construction.
- many slanted walls upstairs, completely unnecessary and impractical and expensive.

Go to someone who knows what they’re doing with a list of requirements and keep your hands off it. I have rarely seen a worse design.
Single-family house for 5 people and a granny flat – there are useful standard designs for that. I can hardly imagine that any of these served as a model for this design in any way.

since we absolutely need the granny flat

Reason for the granny flat?

now after 5+ drawings it should finally be the final one

Yep, you HAVE reached the final version. From now on please go to the professional.

Personal price limit for the house, including equipment: €600,000

That won’t work with this size.

As a carpenter, I would have expected more spatial awareness. Do you really like this?!

P.S. Can you even put such a monster block on the property? What are the floor area ratio/site coverage ratio regulations?

Hello,

1. about floor area ratio/site coverage requirements, what is that or what have I missed?

2. spatial understanding, where is the problem?

3. the granny flat, we want to rent it out or later swap it in old age

4. standard designs, we did not like the layout and when we expressed our wishes the whole thing exploded in terms of costs.

, are you such a professional? what do you think why I asked in this forum, to get help without having to spend a fortune first.

Regards Anson