Floor Plan Optimization Check New Construction

Hello, we are currently planning a house. So far, we have a hand drawing in a scale of 1:100. We already like it very much. However, we need ideas on how to possibly save square meters to come down to 150–155 m². Current square meters:

Ground floor:
- Bathroom: 4.5 m²
- Cloakroom: 3.5 m²
- Office: 14.5 m²
- Hallway: 10.5 m²
- Storage room under the stairs: 1.5 m²
- Utility room: 8 m²
- Kitchen: 11.5 m²
- Dining: 19 m²
- Living: 25 m²
= total approx. 98 m²

Upper floor:
- Bathroom: 7.5 m²
- Bedroom: 12.5 m²
- Dressing room: 5 m²
- Gallery: 10.5 m²
- Children's room 1: 13.5 m²
- Children's room 2: 13.5 m²
= total approx. 62.5 m²

That makes a total of approx. 160.5 m².

The extension (living room) should remain as much as possible to keep a view to the east towards the forest from the sofa. On the upper floor, the children's rooms should be swapped with the bathroom and the master bedroom.

Orientation: Entrance to the north, kitchen to the east side, office in the west.

Do you have any other ideas on what could be optimized? Possibly to add a (hidden) pantry. Different stair design?

Are the square meters of the rooms sufficient or too small?

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Many thanks in advance!

Is there no cadastral map of the property? Preferably with a north arrow and neighbors. Did you overlook the questionnaire?

https://www.hausbau-forum.de/threads/grundriss-planung-unbedingt-vor-beitrag-erstellung-lesen.11714/

Some photos of the surroundings or the property are also helpful.

What do you want now? Fewer square meters or more wishes fulfilled?

Few details, therefore few comments on saving square meters:

- Omit the dressing room, place the wardrobe in the bedroom
- Remove the door from the kitchen to the utility room, provides space for the utility room
- Remove the wardrobe in front of the WC and install it as a built-in version under the stairs.

Upstairs, the children's rooms are supposed to be swapped with the bathroom and the master bedroom. Are there any other ideas from you on what could be optimized? Possibly still get a pantry (hidden). Different staircase? Are the square meters of the rooms sufficient or too small?

I would rather swap the bedroom and the wardrobe so that bathroom stays over bathroom. Halve the utility room, then you have a pantry. Or you use the utility room also as a pantry. In my opinion, this also has the advantage of short distances. A traditional pantry doesn’t really exist anymore nowadays. A different staircase requires a completely new design. I assume there should be a basement. In my opinion, the rooms are okay. You use a lot of space for the gallery upstairs. Please provide some dimensions for the floor plans. The basement floor plan is missing. I like the variable partition wall to the kitchen. I once had something like that in my apartment. But honestly, it was almost never closed.

I skillfully overlooked the questionnaire. Here is the addendum + photos

Development plan/restrictions:
Plot size: 1,100 sqm
Slope: only towards the street
Roof shape: flexible
No building specifications.

Basement: no
Floors: ground floor and upper floor
Number of people: 2 + possibly 2 children, 31 and 28 years old
Room requirements: ground floor office, WC with bathtub, enclosed kitchen

Further wishes/special features see photo

The staircase is roughly sketched.