City villa floor plan - suggestions for changes?

Hi, we are building a house with a very well-known prefab house company and this is the preliminary floor plan.

Development plan/restrictions
Property size 1100sqm
No development plan

Requirements of the builders
Style, roof shape, building type – city villa with hipped roof

Cellar, floors – without cellar, 2 full floors

Number of people, age – Mom, Dad, 2 boys and Grandma, Grandpa

Office: will be used as a naturopathic practice

Overnight guests per year: many!

Open or closed architecture: open

Open kitchen

Number of dining places: 6

Garage, carport: possibly carport

Wishes/special features/daily routine: shared use of the practice by the builder and grandma, who lives in the annex. Possibly a third child (thus room on the ground floor with shower)

House design
Who designed it:
- Modified standard plan of a large prefab house company

What do you especially like? Why?
- Gallery + open ground floor, large floor-to-ceiling double windows

What don’t you like? Why?
- Possibly too small living room

Price estimate according to architect/planner:
- approx. €475,000 (houses only, without land)

Personal price limit for the house, incl. equipment: €500,000

Preferred heating technology: gas boiler and underfloor heating

If you have to do without, which details/extensions
- you can do without: possibly different window arrangement, possibly 2 bathrooms upstairs
- you cannot do without: 3rd children’s room and practice

Why did the design turn out as it is now? e.g.
See above: practice, possibly 3 children, multi-generation house

What is the most important/basic question about the floor plan summarized in 130 characters?
We searched a long time for the ideal house for us and my parents and finally found it. Now we just want to have one more look before signing next week and starting construction officially. Do you maybe have a suggestion for improvement? Possibly to enlarge the living room? Many thanks in advance. PS we would like to remove the yellow marked windows. All windows in the house are floor-to-ceiling. [/U]

The classification into the property is only clear to those who know what means what in the drawing – at least not to me. What do you expect from the ribs / anti-bays?

Without explanation, the drawings say little or rather raise questions. For example, I see two different wall constructions: the main house seems to have ETICS, rather unusual for prefab builders; and then the grandparents' annex has solid walls?

Why is the bridge building not intended as a shared entrance building? By the way, I also find it unusually narrow. In old age, it might be desirable to be able to move dry-footed between the generational areas. I do not see driveway, garage, and basement replacement room.

Floor-to-ceiling throughout sounds to me like "Function follows Form," as does the whole symmetry / geometry. Practice visitors can look fully into the living area, the same applies regarding their acoustic participation in family life thanks to the open space.

Why an adapted standard plan at all, you are not an adapted standard family? – I would not take a catalog base at this price range, it doesn’t save anything. My reading tips are the threads of with practical dimensioning of the bridge building and with practice in the house (replace children there mentally with grandparents here, then you see the similarity more clearly). I see your thread at the beginning, so by no means just before the penalty that will only be a formality.

In addition to 11ant’s comments

The way you draw reflections does not match the site plan.
Are the floor plans oriented to north?

The budget will not suffice.
There are no allowances for extra construction costs, garage, carport, landscaping.

The entire floor plan seems to be dominated by a hallway.

Be sure to draw in proper furniture to scale.

You enter the house and hang up your jacket. Uh, where?
A cloakroom is missing. Five hooks on the wall are not enough.

Bathroom on the ground floor. Mini shower, 77 door hasn’t been used for 40 years without necessity. There wouldn’t be lack of space if planned more functionally.

Technical room very small. Maybe everything fits, but no box of water fits in. There is no storage space.

Please furnish the study.
Where is the visitor entrance?
Visitor toilet.

Cooking, eating, living nicely grouped around the sight axis hallway.

Grandparents are not allowed to come for dinner if a third child arrives. There is no space at the dining table.
The children’s toys are nicely placed in the stylish sight axis entrance - garden. From the kitchen you have no view of the little ones.

The living room can only be furnished with small two-seaters, one of which is still in front of the window.
Where will the terrace be?

Upper floor
Now cardinal directions would not be bad.
I assume the master bedroom gets the south side and one child the north.

Here too
Large gallery with what purpose?
Large master section with extremely dark dressing room.
The removed windows must be reinstalled. There are other formats besides floor-to-ceiling.

In both floors the dominant hallway/gallery has to go. Floor-to-ceiling replaced by normal.
More function, less form.
The children get relatively small rooms for sleeping, homework, playing, friends.

Parental area
Design technical room so that later rental is possible.
Barrier-free is not given.
The same wet cell as in your part.
No cloakroom.
No storage space.

Now that's what I call confusion. Am I right in assuming that the whole thing will still be mirrored? Also, is the labeled HAR the guest room or the 3rd child’s room?

A bold decision with the setbacks. I admit, I like the kitsch too. It looks really cool from the outside. Inside, though, you usually have to make big sacrifices for it. In the end, you have to weigh whether it’s still worth it. I think here it’s still okay. The biggest drawback I see is the relatively small living room – but even that just about works with 3.70m.

What, in my opinion, really spoils the fun here is the kitchen wall. That thing causes double and triple problems: it divides the space so awkwardly that there’s nowhere left with enough room for the dining table. On top of that, this space is now really ugly and uncomfortable. The entire living room gets chopped up, and the dream of a big open space is gone.

I would therefore consider putting a wall in front of the stairs to create a nice large open kitchen with an island here. (I hope the stairs weren’t exactly a designer folded trestle staircase made of glass, which is the client’s childhood dream.)

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The cloakroom was already mentioned. I would also double-check the space for the bed. Maybe it’s better to leave out the wardrobes behind the door here. The bathroom layout is still a bit unclear with the dimensions – but everything is solvable. I wouldn’t have any windows removed anywhere. Otherwise, I think it’s pretty good. Of course, I’d like to see it once it’s ready.

Edit: maybe it's better to leave out the walls and plan the cabinets under the stairs as built-in wardrobes? Well, the idea is clear - details later.

I think I don't understand the whole house. 4 adults and 3 children? How is that supposed to work? Plus [Praxis]? Many overnight guests? No storage space, patient-visitor area not recognizable, where are grandma / grandpa supposed to wash, store things?