Floor plan design for a gable roof house (knee wall 2.20m) approximately 170 sqm

Or floor plan Edition 600. Have a look at such floor plans and the room layouts on the upper floor. Then you will also get a feel for stairs and hallways.

An alternative for us would still be a classic city villa, but they usually look just as uninspired in their floor plan and are probably more expensive than a gable roof due to the hip roof construction. [...] Living/dining/kitchen in an L-shape is rarely found so that there is still space for an office/guest room on the ground floor.

On the one hand, exactly the uninspired spot in a "classic" alternative villa is called "office/guest room," is located in the same place, and has the same size as in your own design. On the other hand, the hip roof on the "city villa" is not a law of nature. If it – as planned by you – departs from the square footprint towards an unequal-sided rectangle, the planned gable roof can also be applied to it in a very appealing way visually – but considerably cheaper, if it only starts above the floor ceiling.

Just the note that the staircase is at least one meter too short should reassure you somewhat and excuse further points that don’t fit or could be planned better. Of course, you can also turn a dressing room into a storage room, but wouldn’t it be more sensible to use a room as it was planned? And if you need a storage room, then have it where you need it?

Living/Dining/Kitchen in L-shape is rarely found so that there is still space for an office/guest room on the ground floor.

When I enter 4 bedrooms or 5 rooms in house search filters, houses with a ground floor office usually come up. You can also make an effort to look at the many recent floor plan discussions where home office offices are increasingly included. Because what you want is not exactly a new creation. Almost every second person has this layout, only it looks different there because it fits – unlike your draft: longer staircase means a longer hallway. Dining area needs to be wider, then you move the rest and everything looks different, similar, but also more suitable. In theory.

Otherwise, a room is of course a matter of taste.

It’s not about taste, it’s about proper dimensions: take the mentioned 2.87 in the bedroom: if the solid builder builds it like that because it’s your “taste,” then 2.80 remains after plastering. Then the bed will have to be 10 cm away from the outside wall, leaving you 50 cm. 50 cm… enough so that one of you really has very little space to even get to their side of the bed. With a child in your arms, nothing is doable except stubbing toes or kneecaps and falling stiffly into bed. Going to the toilet at night in the dark: no-go and annoyance. At the latest with the first aches after 40+, you’d rather sleep on the sofa. This “matter of taste” is just great.

and we do know that an 11 sqm room is enough for sleeping.

Then give it space where it needs space and take space away where it’s wasted.

yes that’s certainly true but when writing down what’s important to us, you quickly start trying out whether it could work like that.

Yes, you can do that, it’s also fun. But when the tight spots are pointed out here, then accept them – this is your chance now.
I have general points:
- I also consider a 2.20 kitchen block neither fish nor fowl.
- The floor-to-ceiling windows in the gable sides are visually too far apart.
- Staircase at least 3.70, better yet 3.90. A layperson should generally draw somewhat more everywhere to compensate for actual wall thicknesses.
- Cloakroom missing
- Such space-saving showers... do they even still exist? For whom are they supposed to be?
- Sofa in the office cannot be unfolded due to lack of space.
- An 8 sqm office is officially too small for two parallel home officers. 8 sqm per person if the employer pays attention to that.
- Kitchen: lack of movement space. No tall cabinet. Oven door or dishwasher door cannot be opened.
- Dining area quite tight for constant passage to the living room.

Passage from garage to utility room to get groceries/drink crates dry into the house

You can manage that most of the year even without a side entrance. It rarely rains constantly when you just get home. And if it rains, it rains all around the house anyway. The door takes up valuable storage space inside the house. You have some buffer space in the sports room for putting things down, but even this 2.80 cut is not exactly ideal. But it works.

However, with the Edition 600, there is no more space in the dressing room and bedroom. If you choose a bed with a compact headboard and end up with a 70 cm passage, I would find that absolutely okay. When you read all this here, I sometimes wonder how people manage to survive in average apartments at all ;) I would definitely give the dressing room a window. One could consider a second door in the bedroom as a direct passageway to the bathroom. The hallway downstairs is too wide; place the wall on the left side of the plan exactly under the wall upstairs. That also benefits the statics. I find the cloakroom under the stairs sufficient + jackets or a narrow shoe cabinet towards the WC. But first, draw a proper staircase, then we can see further!

If you read all this, I sometimes wonder how people can survive in average apartments at all ;)

Well.. I can do well in a small space, I’m not disabled, slow, or spoiled.. but I actually broke my little toe twice in such a situation I mentioned. It’s not so great. When I build, I make sure that the everyday route doesn’t have apartment-building-size dimensions, where every saved centimeter brings money to the investor but offers me barriers in my own property that I shouldn’t have with a house of my own. I can "install" them, but if I have to excuse them with poor house planning, then something is wrong.

A 4m wardrobe is more than enough for 2 people. I would solve it like this: