Floor plan of a single-family house, feedback

you only see it with chairs to a limited extent. The chairs do not simulate the space needed for someone to squeeze behind them.

Horse stable oh yes I also know someone who is immediately in favor of that.

I read that you come from the technical side. I don’t know much about that and also don’t have good experiences with too much "automation" regarding practical reality.
First of all, my feeling cannot be controlled by time, because sometimes I like it bright, sometimes the opposite. How should the automaton know that? Additionally, I would perceive too much of it as patronizing, and just operating a switch to "save" makes no sense in everyday life at least. I used to have an expensive wind-sun automation... but only for one summer, then it was deactivated.
My actual question about that is rather how well you want to insulate, also window properties. Will there be venetian blinds and is there a roof overhang.
We have southeast exposure with lots of glass but venetian blinds, air conditioning, and KfW 40.
I simply mean that you have to look at that carefully and especially honestly check your own feelings.
So check carefully who binds themselves... many things can be written.

Yes, I have somewhere a journeyman electrician certificate and have been doing programming for decades. And I am currently learning the KNX part.
I have already done quite a bit of automation (with the limits that a rented apartment sets, anyway), so it is more an adjustment in the system than something completely new. The "how should the automaton know that" thing – well, that is part of how you set it up. If I set something manually, the automation turns off. For a certain time or until a certain other event, then it is a matter of setting again.

For various reasons, I am not bound to KfW, but "the more, the better" in terms of insulation and so on. There is already quite a lot in it. And yes, continuing to study/delve into that is definitely on my list.

only conditionally do you see it with chairs. The chairs do not simulate the space needed for someone to squeeze behind them.

Correct, I first have to get to the chair. I have (hopefully sufficiently) taken that into account.

Yes, I have an electrician journeyman certificate somewhere and have been doing programming for decades. And I'm currently learning the KNX part.
I have already done quite a bit of automation (with the limitations that come with renting an apartment), so it's more of a system adjustment than something entirely new. The "How is the automation supposed to know that" - well, that’s part of how you build it. If I set something manually, the automation just turns off. For a certain period or until another specific event, that’s again a matter of settings.

Even though this topic is unfamiliar to me or not necessarily my field, I still understand that everyone has different priorities or hobbies. I just want to point out that written things like "cooling," "winter garden," "shading," etc., may initially sound sensible, but their effects should nevertheless be closely examined in detail. Of course, despite all planning, there is always a residual risk, but I would like to keep this as minimal as possible in such fundamental matters. I speak from my own "experience" with myself, but maybe that doesn't apply to you—that’s something you have to decide.
I am well aware that all kinds of things can be programmed there and that it can be fun, but for example, with the wind/sun automation there is always a residual risk or the personal feeling that contradicts the setting. According to the data sheet, my sun umbrella could stay open much longer, but I am usually uncertain when the wind blows. Although there are many reasons and advantages for elaborate automation, I for myself have found that for often unknown reasons I sometimes prefer this and sometimes that, despite the same situation. My thought also rather goes in the direction that, for example, for comfort reasons, I would prefer manual venetian blinds over automatic shutters or rather the air conditioning over some other thing. Of course, everyone has different priorities, but initially I would raise the quality/function of the necessarily installed products and only then look where to include "gadgets" (high-quality floors, venetian blinds, staircase, seating furniture, etc.). In my surroundings, I repeatedly see the opposite order, such as people walking on plastic floors but having elaborate lighting, lots of technical "gimmicks" and less living quality; that’s what I mean.
In my housing estate these days, I see exclusively fully darkened living rooms—that would be horrible for me, something I would solve with air conditioning and/or venetian blinds or similar; although that seems widespread, I would find that downright terrible.

For various reasons I am not bound to KfW, but "the more the better" when it comes to insulation and co. There is already quite a lot in it. And yes, further looking into/deepening that is definitely on my list.

I don’t mean the funding scheme here, but rather the truly perceptible sense of optimal insulation/ventilation/shading. That certainly costs a considerable amount of money, but that seems to me to be extremely well invested there, for example. I built a house in 1990 and in 2021 and therefore recognize the difference, even if I would build my next house quite differently again.
This open discussion is fun, and you will also receive diverse helpful support from the people here in all sorts of areas. No rush......

about the swinging door: The frame is really nothing more than a board - it must not have a rebate. Very easy to build. The hinges either work with spring tension or more elegantly with gravity. Should the door have one or two leaves? Soundproof sealing is a challenge - your son should consider that once. These doors never close tightly if they are to be within a reasonably affordable price range. This also applies to drafts and light. Nevertheless, I think it is a great idea.

about KNX: As soon as you wrote about home automation, you seem to be entering familiar territory. If you enjoy it, then definitely build it according to your wishes. My own position on it is quite similar to that of . What personally impressed me: my father and both parents-in-law developed dementia and increasingly had problems operating electrical devices. My father soon no longer understood the touch switch for dimming in the conservatory, which he had previously operated without problems for 20 years.

about the space around the chairs: A bench creates space - especially if it has a backrest. In our kitchen we have an approximately 3-meter-long peninsula (called "Spain" in domestic parlance) with access to storage from both sides. The dining table stands parallel to the long side of the peninsula. In front of 4 of the inconspicuous doors there is a 2-meter-long bench, then immediately the table. We deliberately arranged it this way, because only things we rarely need are in this part of the kitchen island (vacuum sealer, spice grinder, fondue, uncommon glasses, instructions...). When you need something, the bench is moved. So far it hasn’t been a problem. And the sense of space is great.

Of course everyone has different priorities, but initially I would raise the quality/function of the necessarily installed products and only then look where to add "gadgets" (high-quality floors, venetian blinds, stairs, seating furniture etc.). In my environment I keep seeing the reverse order, for example when walking on plastic floors that are elaborately lit

I can understand high-quality floors first. Unfortunately, good quality is always quite expensive here. It would somehow look silly if the Eames Lounge Chair stood on laminate. For stairs, there are very good and not very expensive solutions if you look beyond the standard German goods. The same applies to railings. It’s worth asking a locksmith – and if it doesn’t have to be completely "standard-compliant" in order to be beautiful, you order a (from the locksmith) pre-assembled kit and then don’t do anything more to it. That way the locksmith is out of liability and you get what you want. Venetian blinds are admittedly an effective shading element - I wouldn’t have even installed them if I had been paid for it.

about the swing door:
The frame is really nothing more than a board – it must not have a rebate. Very easy to build. The hinges either work with spring tension or more elegantly with gravity. Should the door have one or two leaves?
Sealing in terms of sound is a challenge – your son should consider that. These doors never close tightly if they are supposed to be within a reasonably affordable price range. This also applies to drafts and light. Nevertheless, I think it’s a nice idea.

One leaf is the wish – and it’s also quite feasible in terms of space. Regarding sealing: I was thinking of something like a sealing strip for doors/windows, about 0.5cm adhesive strip or so. The door must have a small gap between itself and the frame. Sticking that either on the leaf or the frame should at least keep the light out. Maybe a bit of sound, too. You just have to replace it every 2 or 3 years. How much air draft should be suppressed – hrm, the house has central ventilation. So some air movement has to be present anyway.

about KNX:
As soon as you wrote about home automation, you seem to be entering safe ground. If it’s fun for you, then definitely build it according to your wishes. My own attitude for myself is quite similar to @Arauki11’s. What impressed me personally: father and both parents-in-law developed dementia and increasingly had problems operating electrical devices. My father soon didn’t understand the touch switch for dimming in the conservatory anymore, which he had previously operated without problems for 20 years.

Well. I’m a trained electrician and have been a sysadmin/programmer for a long time, so this is my field. It’ll be fine. There are certainly some differences compared to what I normally do, but that’s learnable. I already have the corresponding test board here.

about the space around the chairs:
A bench creates space – especially if it has a wall at its back. In our kitchen we have an approximately 3m long peninsula (colloquially called "Spain" in the household) with access to storage space from both sides. The dining table stands parallel to the long side of the peninsula. In front of 4 of the unobtrusive doors there is a 2m long bench, right in front of it the table comes. We deliberately solved it this way, as this part of the kitchen island only contains things we rarely need (vacuum sealer, spice grinder, fondue, unusual glasses, instructions...). If we need something, the bench is moved. So far it never disturbed. And the feeling of space is great.

Yes. In the draft I initially had a pantry with a bench on the wall there. If it turns out that a bench (whether fixed to the wall or movable) fits better here, that’s certainly an option.

Quality floors first I can understand. Here good quality is unfortunately always quite expensive. It would somehow look stupid if the Eames Lounge Chair stood on laminate.
For stairs there are very good and not very expensive solutions if you look beyond the German standard range. Same goes for railings. Asking a locksmith is worth it – and if it doesn’t have to be completely "standard-compliant" just to be beautiful, you order a (pre-assembled by the locksmith) kit and then don’t do anything more to it. That way the locksmith is out of liability and you get what you want.
Raffstore is admittedly an effective shading element – I wouldn’t even have installed it if someone gave me money for it.

Ah, we just recently had a HausBau Plus fair here. There were many people around and we had a lot of conversations – and as often, the smaller companies where the owner himself was at the booth and held the conversations came across as most competent.

the smaller companies where the owner was personally at the booth and conducted the conversations came across as the most competent.

In small companies, the entrepreneurs shape the product range, scope of services, prices, and the willingness to engage with one interested party and not with another. This naturally creates the maximum impression of competence. The technically strongest individuals often have less customer contact and are used differently. A good entrepreneur gladly hires people who surpass them technically.