Small Bungalow Floor Plan - Optimization Potential?

That's correct or rather inaccurately expressed on my part. I thought it was more for the utility room, where it can sometimes pinch. But even there, it applies to discipline oneself.
Often, the bathrooms here are too big without necessity and deeper meaning; I wrote that I love my 6.91sqm bathroom.

I once had a bathroom measuring 2.20 x 2.60. Nicely renovated and very cozy. You couldn't brush your teeth side by side, but with a small step everything was within easy reach. Our current one is a bit bigger. We actually misjudged a bit there.

You’re away for just one day and then so many posts – really great!

I have one more with a rotated body:

I really like that one too! I’m just worried that the south/north orientation will be more expensive for the earthworks because the terrain slopes from north to south. And the photovoltaic system probably prefers a whole roof side facing south, but the longer I think about it, the more I like it the other way around.
Phew, this is going to be a difficult decision.

Regarding the utility room next to the bedroom: I had read that the equipment (I don’t remember if it was the air-to-water heat pump or the ventilation system) produces a certain level of noise, so the room should either get soundproof doors or not be planned next to quiet rooms. But maybe this information is outdated... And it’s not decided yet whether a ventilation system is necessary or not...

The washing machine is not critical. It only runs every 3 weeks, and at a time when I’m already in the stable anyway.
really speaks my mind there:

Open or, as here, "smaller" living also brings such "disadvantages" with it, which I don’t perceive as disadvantages because I like my way of living. In the end, every decision about one detail always brings some consequence with it, that’s why I pay attention to my priorities.

You can make everything fit so nicely when you live alone.

I already understood that, it was more meant for the OP to come to terms with "necessarily" more square meters.

I have no problem with "bigger" at first – as long as it stays within budget. As I said, I’m not fixated on the square meters; if I end up with 81 sqm and it’s within budget, then everything is fine.

I am also mentally setting the bathroom at about 7 sqm.
Your bathroom doesn’t have a tub? How did that decision come about? I’m still very unsure about it. It’s definitely been more than 5 years since I last lay in the tub. So I don’t really need it. But I have the fear that if I build without a tub, one of the first inner wishes will be to want to take a bath once I live in the house... So better to have one – and then not use it...?
Your shower is nice and big – do you have a glass door on it? I would prefer to do without glass on the shower. Wiping it off is just super annoying, and we have extremely hard water here... So I prefer tiles and an open entrance.
But I’m unsure if that wouldn’t cause "flooding" every time, maybe the slope to the drain has to be a bit steeper then. Does anyone have experience regarding this?

everything reachable in one small step

That’s the nicest thing in general about small apartments/houses for me. Short distances. I especially want that in the kitchen.

It’s definitely been over 5 years since I last lay in the tub. So I probably don’t need it.

We haven’t had a tub for 30 years, but great showers instead

Scraping it off is simply incredibly annoying and we have extremely hard water here... Therefore tiles and an open entrance are preferable.

We have open showers without glazing, all tiled, that works well. We have a central water softening system for everything, which reduces the water hardness from 22 to 8, good for all appliances like washing machine, dishwasher, coffee machine, and no calcified fittings and basins

Regarding the utility room next to the bedroom: I had read that the equipment (I don't remember if it was the air-water heat pump or the ventilation system) produces a certain noise level and therefore the room should either have soundproof doors or not be planned next to quiet rooms. But maybe the information is outdated... And it’s not decided yet whether a ventilation system is necessary or not...

First of all, it depends on which equipment you actually want. I like our controlled residential ventilation, although I initially thought I would still feel the need to open the windows all the time; that relaxed. The controlled residential ventilation is not loud at all and the hot water heat pump only runs sometimes. I would find soundproof doors exaggerated, unless you are particularly sensitive, but some things only reveal themselves over time. Maybe I wouldn’t plan it right wall-to-wall, but not much more than that. For example, if you plan with a fireplace and additional heating, there won’t be anything audible anyway.

Your bathroom has no tub? How did you come to that decision? I am still very uncertain about that. It’s definitely been over 5 years since I last lay in a tub. So I probably don’t need it. But I have the fear that if I build without a tub, one of the first inner wishes will be to want to take a bath once I live in the house... So better with one - and then not use it...?

In the end, you would always take everything and then have it if you ever want it; that’s the catch with new builds. There are arguments for it, but if you haven’t used it so far, why should that suddenly change? We have a tub upstairs, which I don’t use, but my wife does. It’s a matter of preference. I treated myself to a nice overhead shower....
You will have these thoughts of uncertainty from now on with everything: Do I need this or that feature, which I cannot retrofit later? What a stress, which you only know when building a house, and no one can or should take that away from you, there is no right or wrong. If you are really unsure, then just plan one in and accept the few extra square meters and costs. Or just go visit Robert Redford for a bath....
But I also don’t want to squeeze in just any tub. My reasons don’t have to be yours but the same applies to the next opinion...

Your shower is nicely big - do you have a glass door on it? I would like to skip glass on the shower. Wiping it off is just incredibly annoying and we have such extremely hard water here... So rather tiles and an open entrance.
I am unsure though if that won’t cause flooding every time, maybe the slope to the drain has to be made steeper. Does anyone have experience with this?

That caught my attention in your first description because these were exactly our parameters. Being forced to squat down to wipe such a large glass surface is apparently the latest trend but is totally out of the question for us. In our last house, due to lighting, we had a half-high wall with a pane set on top. Then you can wipe it standing with three swipes, which I find acceptable. But as soon as it starts with doors, hinges etc., it stops for me and becomes stressful. Here in the new house (see picture above of the ground floor shower), there is no glass in the showers and if you have 140cm, better 160cm depth with 90cm width, that is a really luxurious shower. In the picture, for example, the towels hang on the wall opposite the shower and don’t get wet at all. The necessary slope is done by the tiler, you don’t need anything special for that... it fits. Tiles and open entrance is wonderful!

we haven’t had a tub for 30 years, instead great showers

yep, no half-hearted stuff, rather do one thing really well.

I am just worried that the south/north orientation will be more expensive for the earthworks since the terrain slopes from north to south.

Me too.

And the photovoltaic system probably likes a whole side of the roof facing south better,

It is better and easier.

And it is not decided whether a ventilation system is necessary or not...

If you work from home and your house is compact, as one would assume, then you don’t need one. We have one, I swear by it, but I work, we don’t want to ventilate. You like it, you say.

I also mentally set the bathroom at about 7 sqm.

But that is not enough for walk-in shower and tub.

if I build without a tub, one of the first inner wishes will be to want a bathroom as soon as I live in the house... So better with one - and then not use it...?

One can assume that. A tub is also good for many other things.

I would like to do without glass at the shower.

But I am unsure whether there will be "flooding" every time, maybe the slope to the drain has to be made a bit steeper. Does anyone have experience in this regard?

The specialist in sanitary and tiles are the ones who should manage that. But as already said: certain must-haves consume more space than standard. When I see ’s bathroom: I would also not want to miss my 160 cm washbasin with shelf.

We also have the utility room next to the bedroom. You don’t hear the heat pump at all. You do hear the washing machine, but you don’t have to run it alone in the evening anyway. We don’t have a bathtub either; we never used one in the old house. In the 3 years I’ve been living in the new house, I haven’t missed it so far. For the things it would be practical for, like larger laundry items, I have a plastic basin that I place in the shower. But I’m not going to add 2 square meters, spend a lot of money on a tub and fittings, and regularly clean a tub that I would only use 3 times a year for laundry or similar. Our shower has a glass wall; I don’t find wiping it down annoying, I always wipe the floor after showering anyway, and then quickly wipe the wall too. With the ypg designs, I would miss having the toilet near the entrance. If you need to quickly get to the toilet from the garden (stable), you’d always have to go through the living area and would consequently bring dirt inside.