Floor plan "HOUSE FOR TWO" of approximately 150 sqm presents itself

Equality was invented to save you men from mistakes.

True, I absolutely agree with you (from experience I know that this shortens the discussion considerably and allows one to get to the pleasant part earlier) -

That's right, I completely agree with you (from experience I know that this significantly shortens the discussion and allows you to get to the cozy part earlier)-

LOL
here you have a whisky

I may not have expressed myself entirely precisely on this. In principle, the construction is set that way, but it has been agreed that before we sign the building application in the next few days, some things will still be finalized with the general contractor. Whether and what can still be changed after that will be clarified on that very day.
Theoretically, I could also say stop now and turn the whole thing upside down and pay for the extra work of the plan change.
But that will not happen because we have come to our previous result by other means, which we basically like as it is. If we were to build it exactly like that, we would ultimately be just as happy with it as we will be after any possible changes, because we know that it can never be perfect and every decision affects another.
We know how we tick because we have been through this several times, but after being here for a while, I got interested in taking in the knowledge and ideas of the participants, because it can never hurt.
Some points are so special or individually tailored to our lifestyle that it would have taken too long and also would not have been appropriate to discuss them extensively here.
From what I have received so far, I am totally thrilled, even by critical remarks, because that is exactly what I asked for.
I do not expect that anyone else will like my house 100%; however, we will seriously reconsider some things from here, because sometimes one is too fixated on something like being on one level, lake view, fireplace, guest area, etc., and then such comments help.
We really enjoy planning and creating for our own taste to the point that we are almost sad when it will finally be built—

LOL
here you have a whisky

....a man should not accept anything from strange women.....that’s how I was taught as a young man; because it can be dangerous.

In theory, I can still say stop now and completely turn the thing upside down and pay for the extra work of the plan change. But that will not happen because we came to our previous result by other means, which we basically like as it is.

Well then: we too have decided to invest in a second half-floor, even though we were 47 and 57 years old when building the house. I stand by it, even though I love bungalows. Nevertheless: we made a thinking error, and I see that here as well. Currently, it may be wanted this way, but afterwards, one might kick oneself for not having planned the most obvious option. This "later swapping guest and bedroom" is so stupid. Because then – later after the swap – you end up in a 5 sqm small guest bathroom, while the fancy bathroom upstairs will lie unused. Also, there isn't as much space for the wardrobe/dressing room as one would have liked. I love my house but don’t understand the barrier I had back then, that I didn’t move the guest room, the office including guest WC upstairs. Nobody pointed that out to me in the forum either. There should have been 10 sqm more downstairs for 10/20 years more comfort. And now I know that this shower toilet will not be enough later if one of us has to move downstairs because of illness. Dear colleague: think carefully about it. Regarding the design: outside it’s mine. The open-plan room would be too narrow and long for my taste. West sun is missing. I would have rotated the room layout by 90 degrees. Shower on the ground floor not walk-in, barrier-free is something else... sitting under a staircase is not comfortable. Utility room door placed disadvantageously on the outer wall – thus hindering kitchen furnishing as well as carrying laundry, ladder, etc. Different wake-up times should be taken into account by planning an independent wardrobe room in front of the bedroom. You don’t plan the bathroom door where you have to go around the bed, but in front of it (short distances help with bladder weakness).

Well then: we too have decided to invest in a second half-floor, even though we were 47 and 57 years old when building the house.
I stand by it, even though I love bungalows.
Still: we made a flawed thought, and I see that here as well. Currently, it’s probably intended that way, but in hindsight one could kick oneself for not having planned the most obvious option.
This "later swap guest and bedroom" is so stupid. Because then – later after the swap – you’re left standing in a 5 sqm small guest bathroom, while the fancy bathroom upstairs will lie unused. Also, there isn’t as much space for the wardrobe/dressing room as one would like. I love my house, but I don’t understand the barrier I had back then that kept me from moving the guest room, the office including guest WC upstairs. Nobody in the forum pointed it out to me either.
It would have needed 10 sqm more down here for 10/20 years of extra comfort. And now I know that this shower toilet won’t be enough later if one of us has to move downstairs because of illness.
Dear colleague: think it over well

Regarding the design: the outside is mine. The open plan room would be too narrow and long for my taste. West sun is missing. I would have rotated the room layout 90 degrees.
Shower on the ground floor not walk-in, barrier-free is something else... under a staircase is not good for sitting.
Utility room door disadvantageously placed on the exterior wall – thus hindering kitchen furnishing, but also carrying laundry, ladder etc.
Different waking times should be considered by planning an independent closet room in front of the bedroom. The bathroom door is not planned so that you have to go around the bed, but in front of it (short distances help with bladder weakness)

Well, that’s exactly why you ask, the internet makes it possible. It’s precisely what we want to avoid. We have lived in various places and know quite exactly what we like but also want to avoid old misconceptions from previous houses (and make other mistakes instead).
I already know now that we will feel comfortable there (if nothing goes wrong) and yet so many thinking errors are still possible that you wouldn’t have thought about beforehand.
Regarding your points:
Whether it will really be that stupid may be, but it may not be. We had cases in the family where it would have been perfect, but I agree with you that it is worth considering. The bathroom is 6 sqm, that much time must be allowed. Getting in works, I have exactly that once here. If a wheelchair is ever needed, the pane will be removed and done (both bathrooms inside are only “planned” so far). The fancy bathroom upstairs is to be used permanently, therefore as a last resort the option of a stairlift (oops I still look so young…). The wardrobe on the ground floor is enough for one person, that we know. Worst case would be to make the living room into a bedroom with a lightweight wall. What happens if only one person is left or one sleeps downstairs and one upstairs. Many possible scenarios. And then I’m back at my 200 sqm, which I want/must reduce because I have nowhere too much space for OUR taste.
The life paths of our parents were completely different and so I know that it’s not enough to only consider physical impairment or that in the end it can be exactly the wrong thing.
Dear female colleague; he will think it over, that’s for sure!
Handling guests in the entrance area I basically find good for guest and us, because more privacy; therefore also en-suite bathrooms. Guest WC exclusively for passing visitors without overnight stays; upstairs poorly implementable again.

West sun yes… but there are neighboring houses etc., the rear area is completely free from outside view; that’s the thought behind it.
We thought about a courtyard; it “ruins” the plot, plus there’s an old stable building there and there would be a free view from neighbors’ houses.
Further details like bathroom door and others are not yet finally decided, also regarding access and gallery we will clarify final things next week.
Maybe guests out in the garden house and living room + bathroom a bit bigger… or a small living room upstairs (we rarely sit there anyway) and TV area downstairs… it’s time to get this done.

By the way, I find it unacceptable that you list all my hitherto unknown ailments here… about short ways to the bathroom and so on… I’m already at the point where I’m allowed to stay lying down! -
T-h-a-n-k y-o-u