Floor plan access from kitchen to pantry / storage room

So your solution would be to completely remove the pantry and use the space for the kitchen? That would then be a huge room and the kitchen would surely become insanely expensive. I'll think again about what exactly will go in there.

I see the pantry as unnecessary for your requirement. The kitchen will not necessarily be much more expensive; I think that the door solution to the pantry is not cheaper than another use of the same room.

The kitchen will not be implemented as in the floor plan, but rather like in the 3D visualizations. I think the path from the sink to the stove is quite normal there. I am attaching a draft from a kitchen builder. You can see it quite well there. The two kitchen builders also implemented the kitchen very similarly, only not the entrance to the pantry.

The passage is already very narrow. 80 cm? The dents from the beverage crates are almost pre-programmed there.

I would either do it like says, namely the simple solution with a normal door. For us, for example, the door to the pantry is usually open..... But since it will now be the utility room in our house, there will be a normal door. Of course, you can implement fancy things there, but in the end, for me it also boils down to the cost/benefit ratio, which you have to decide for yourself or where money might be missing elsewhere.
Basically, in your situation, I would also tend to go for the larger kitchen without a pantry. You would have a lot of space and if you extend normal tall kitchen cabinets without expensive interiors or buy them if necessary from the blue-yellow provider or similar, it will probably not be much more expensive in the end than this pantry solution with an extra door, walls, plaster, electrical etc. additional costs for the room.
I wouldn’t take the typical basement chest freezer anyway, but rather a 120cm (2x60cm) wide side-by-side solution, for example from Bosch, Siemens, etc., or the more expensive Liebherr solution or set up these stainless steel appliances individually; that can be designed nicely and you have everything directly in the kitchen.

You also simply lose a lot of space because of the doors. In the kitchen and the pantry (which then quickly also becomes a junk room).

Regarding kitchen costs: All the ordinary cabinets and drawers are relatively inexpensive. We have a pretty large kitchen (16 sqm). However, it was very affordable because we didn't need any special elements or anything like that anywhere. Friends before us paid 50% more for a smaller kitchen of the same quality because they needed special cabinets and elements everywhere.

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I find this design quite interesting. My husband doesn't really like the idea so far, and I have to ask whether it would be possible to shorten the load-bearing wall that much (the wall between the kitchen and dining/living area). Of course, the kitchen will be more expensive if it gets bigger. Since we want a ceramic countertop, a larger countertop is naturally a cost driver. And I don’t know if removing a wall and one less window will save that much, I need to find out. But thank you very much for this suggestion. Sometimes you get stuck in your own way of thinking.