Small house on large towel plot

On the other hand, regarding the topic of a wood-burning stove in a fully insulated house + heat pump, I can contribute my €0.05 from personal experience:

My experience with it was only brief and similar. apparently lives quite well with this combo, and depending on the user profile, it might be possible to manage it or, like , one might also like it if it is only used rarely or during transitional seasons. As always, there are many different feelings. Here, however, the OP wants to omit the controlled residential ventilation for cost reasons and has also planned rather small rooms with little freedom of movement. In my opinion, it is also the case that a two-person household, at least partly retired, might be handled somewhat differently than one with a child/adolescent. These additional reasons would lead me away from underfloor heating or the stove, also because finances are tight elsewhere (in addition to the basement, etc.). Compared to our old house, we also could not imagine how good insulation works, nor the controlled residential ventilation; that was new territory for us as well.

The wood stove was also a given for us. We love the cozy warmth of a wood fire! What we underestimated: a heat pump with underfloor heating only runs efficiently if it runs continuously – meaning, the temperature in the house is constantly in the comfort zone.

If you have the same comfort zone temperature throughout the whole day. From my point of view, that is the big disadvantage of underfloor heating; you can’t just quickly adjust it. During the day, when you are moving around a lot, we like 20/21 degrees. That’s how the underfloor heating is set. But in the evening, that’s too cold for us. Or if you come home freezing, you want it to get warmer quickly. That’s why the wood stove was also a given for us; we built it and don’t want to miss it. It runs almost every day in winter. In the transitional season, we also heat exclusively with the wood stove. That’s when the advantages of the insulated house come into play again: if you heat the stove in the evening, it’s nice and warm, and the warmth stays for a while during the day. However, I wouldn’t want to heat exclusively with the stove. On the one hand, because we are often away for long periods in winter and then my son would have to heat additionally. On the other hand, I wouldn’t like the obligation behind it. We had also considered integrating a water-bearing stove but discarded the idea.

Thank you very much for the many detailed contributions. I will try to answer everything, but rather in blocks than by quotation. There are quite a few overlaps.

Below I have picked up posts from and some others, but have arranged them by room for better clarity.
I hope that is alright.

Basement
Too expensive, unnecessary, for hobbies and

“A shed for tools offers more potential than an underground floor.”

I would be interested to know what assumptions regarding hobbies and tool equipment this is based on.
For none of my hobbies is “space in the garden” even remotely an option. We’re not talking about two screwdrivers and a hammer here. And I definitely do not want my hobby activities to depend on nice weather.

Kitchen

Too big …

Unergonomic…

These are acceptable opinions, but lacking in facts.

The kitchen is sufficiently large for our needs (working together two or three people is possible). Room depth could certainly be reduced by 30cm without it becoming cramped. That makes a difference of 1.5m². But since the dining area will be a bit larger, this is an important note for detailed kitchen planning.
Stove in the middle, storage space to the right and left, fridge on the left and sink on the right two steps away, dishwasher next to the sink, space for small appliances, additionally a large preparation area, storage where one can reach it – what is unergonomic about that?

Living area

“You can hardly turn around in the living/dining area, it’s so cramped there.”

Our current living room measures 6.90 x 3.95 m. Balcony door on the right, same position, slightly wider. Furnishing almost exactly like in the floor plan, including a table for four and a television, only the sofa is currently a 3+2 set, placed 30cm away from the wall because the “wall” is a floor-to-ceiling 2.5m wide window with white curtains. Between the TV and the coffee table, we have a 1.4m passage width. We have never had a problem turning around in the living room.
In the floor plan, the living area is 4.30m deep and the 2-seater sofa is missing. What is supposed to be too tight there?

“Then plan a fireplace that can also be used and is usable!”

Which type of fireplace will ultimately be installed (freestanding/built-in/water-bearing or not), we will decide at the appropriate time together with the architect, stove fitter, and chimney sweep. And it will definitely be used then.
Unfortunately, we do not have this time freedom with the chimney.

Dining area
It is cramped.
This is not changed by the fact that we are regularly only three people and that the table can also be placed crosswise when guests come.
A sliding door is planned as the exit to the outside (incorrectly shown).
The chimney is in the way, a satisfactory solution has not yet been found.

Guest room
All comments are correct. Thanks to everyone. This room needs revision.

Guest WC
The shower has a rough build measurement of 153 x 95 cm, so presumably 145 x 90 cm with tiles. Not great, but it is not a wellness oasis, rather a guest WC with shower.
The sink does not fit as drawn, that is true. Neither does the mirror. But why one supposedly cannot brush one’s teeth at a hand basin, I do not know.
I will try whether simply mirroring the room solves the sink problem.

Hallway
I hate it when visitors have to squeeze past me to be able to close the door when arriving.
At the moment we have 152cm width. That might be okay as a bare corridor, but with minimal furnishing (a narrow bench on one side, 29cm deep shoe cabinets on the other side), that is a “never again.”
But if the collective opinion considers 2m width to be sufficient, that is good input. Thanks.
A narrower hallway leads to more space in the guest living room and/or guest room.

Stairs

“The landing stairway is a space eater and belongs in office buildings or houses over 160, 170 sqm.”

It does eat up space, but the space was there first. And since there was space available at this point ...
Doing without the landing either leads to a larger and/or “crooked” hallway or forces the abandoning of the guest shower.

To be continued.

I would build the chimney in the upper hallway corner to the right of the plan.

Continuation

Upper floor
Unfortunately, I forgot to mention that for reasons unknown to me, the program stubbornly draws the cutting edge of the grey roof surfaces at about 170cm height above finished floor level. I apologize.
The generated sections are unusable as a whole, otherwise I would have uploaded one. I have to iterate individually towards the values of interest.

Bathroom

A window in the shower is unreasonable.

That may be, but it is at least the cheapest way to dry the shower for half the year. Besides, I like looking out into the greenery while showering.
The sauna window has been painted over (Thanks ).

Balcony

Why on earth do you need an expensive balcony if you have such a large plot?

Yes, rationally that is almost my opinion too. But only mine.
But I openly admit that we have no idea how expensive the balcony would be.

Children’s room

The children’s room has only one wall where a wardrobe can stand. Floor dimensions of 13,xy then make an estimated 10sqm.

According to the software, it is 13sqm of living space. The floor area is about 16sqm.
At the upper wall of the plan, approximately 2m wardrobe width with 2m height is possible, plus space under the sloping roof. Too little?

Living comfort

Living comfort means space to me. Space so that all individuals living in the house can develop individually and not disturb each other by always having to say, "Can I get through?"

There are currently three or four of us. The kitchen is relatively large for exactly that reason, so that more than one person can do something there at the same time.
Where else could you not get past each other?

Here, no one can even watch TV undisturbed while others drink coffee.

I don’t understand that. Why can’t you watch TV on the sofa and at the same time people sit at the table and drink coffee? But that also happens rather rarely with us. We mostly do both together.

Of course, more space is expensive.

Not if you distribute it where it is needed accordingly.

Yes, even then.

The focus of the OP is kitchen, hallway, and basement ...

The focus of the OP is kitchen, living room, and bathroom (no order). That does not mean that everything else is unimportant.

Furniture
I did not expect that the financially clearly better solution for us, to continue using only a few pieces of furniture, would be relevant to the floor plan. The initial post is already so long that not everyone wanted to read it completely. So as a supplement: if the transport and storage costs of a ten-year-old sofa or wardrobe clearly exceed the disposal + new purchase price, I buy new.
But yes, “hardly using any furniture further” is somewhat exaggerated. About a third will move with us.

Design
I: “And I would have assumed a good preliminary design convinces by good room layout.”

But you don’t have that. You don’t have a good room layout!

But don’t expect a cheap planner to straighten out your faulty design.

Too bad you didn’t realize what my statement referred to.
The original post states that I am still looking for an architect. Why is it now assumed for the second time that it will be a cheap planner?
And even if so, I have lots of nice and less nice experiences regarding service price vs. service quality.