Small single-family house with approx. 140m² - any improvement suggestions?

Hello everyone,

our planning for our little house is already quite advanced, so we believe we have chosen a good time for your feedback.

Development plan/restrictions
Plot size: 355m²
Slope: no
Site coverage ratio: -
Floor area ratio: -
Building window, building line and boundary: -
Edge development: -
Number of floors: 2
Roof shape: gable roof or hip roof
Orientation: S/E
Maximum heights/limits: -
Other: -

Client requirements
Style, roof shape, building type: urban villa
Basement, floors: no basement, ground floor, upper floor, attic as storage
Number of persons: 4, 2 children
Space requirements on ground floor, upper floor: Ground floor living room, kitchen, office, guest WC, technical + storage room; upper floor 2 x children’s rooms, parents, bathroom.
Office: family use or home office: home office
Overnight guests per year: 5 (living room)
Open or closed architecture: relatively closed
Conservative or modern construction: modern
Open kitchen, cooking island: yes; cooking island up to the wall under the window
Number of dining seats: min. 6
Fireplace: no
Music/stereo wall: yes, at the stairs
Balcony, roof terrace: no
Garage, carport: garage with storage 3x9m
Utility garden, greenhouse: no

House design
By whom is the plan created: draftsman and us
What do you particularly like? Why? The open living room and otherwise hopefully very well used space for the relatively small house
What do you not like? Why? We worry that the technical or storage room, where the laundry is also meant to be done, is too small
Price estimate according to architect/planner: 300,000€ including garage
Personal price limit for the house, including equipment: 310,000€, all desired equipment is included in the house price.
Preferred heating technology: air-water heat pump

If you have to do without, which details/extensions
-you can do without: walk-in closet
-you cannot do without: office

Why has the design turned out as it is now? For example
Corresponding/which wishes have been implemented by the architect? Parents’ bedroom in the north, living room in the south
What makes it particularly good or bad in your eyes?
Good: hopefully good use of space. Among other things with the masonry stairs
Bad: Actually, we don’t find anything bad. As said, only the size of the technical room might be tight and the sofa in the living room could be a bit narrow.

What is the most important/basic question about the floor plan summarized in 130 characters?
What would you do differently or improve? Have we overlooked anything that could cause problems later?
Is the size of the technical room sufficient? Air-water heat pump + hot water in the combined unit, washing machine, dryer on washing machine, drying rack

Explanation of the pictures:
Once the floor plan with measurements and once the floor plan with placed furniture. There should be some space behind the sofa so the children can leave things there sometimes. (And a bit more space for surround speakers.)
Then comes the orientation of the house and the layout of the plot.
I hope everything is understandable so far. Otherwise, feel free to ask questions.
Thank you very much!

Yes, the utility room is likely to reach its limits just with the technology and connections. It could already be tight with the required clearances to the installations. Whether there will still be space for the washing machine and dryer is questionable; maybe it will just barely fit somewhere. Otherwise, I find the house and the floor plan practical and good considering the limited space. Actually, a house on such a narrow plot really needs a basement. There is simply a never-ending lack of storage space; an attic with a pull-down ladder is not really practical. The basement is obviously not in the (in my humble opinion already too tight) budget. So the only solution to the utility room problem is to somehow move the guest WC to the right as well in order to create more space.

The utility room could really become critical. Where is the electrical distribution planned? The stairs in the living room would annoy me. If the children ever bring visitors, they always have to go through there. I would have rotated the TV wall. It is much nicer to watch outside into the garden with one eye than at the wall... But that's all personal feeling. According to the plan, the dressing room is 2.10m. A standard wardrobe is about 60cm deep - leaving you 90cm of space in the hallway. That would be too little space for me, so I would always carry all my things in front of the bed and change there... I also see the garage with 3m as critical. It looks as if it is measured with masonry. A normal station wagon is about 2m wide. Minus masonry you would then maybe have 2.60-2.70 left? Now add some distance when driving in, then you have 30-50cm left for getting out. For me, an overpriced parking space.

Hello

I don't think the staircase in the living room is well placed here, but if you like it.
The access to the office can still be made a bit narrower without restrictions to give more room to the wardrobe and the area in the entrance.
The rest is already quite fine as it is.
To better accommodate the width of the parking space, a carport might be a solution.

Olli

The stairs in the living room would annoy me. When the kids bring friends over, they always have to go through there.

But it can also be an advantage later, because you can see who they drag along...

I would also immediately remove the garage and replace it with a carport with a storage shed.

The bed is positioned the wrong way - turn it around and then plan the window differently. The window on the left side of the living room is missing.

The HAR/utility room is way too small. With this house size, every centimeter counts. First, I find the bathroom unreasonably large - that needs to be reduced. Also, I would give up the dressing room and instead move the office upstairs. The children's rooms might also have to be slightly reduced.

Instead, a proper utility room, wardrobe, and WC downstairs.