Floor plan single-family house 2 full floors ~180m² living area - 760m² plot

We would like to plan ahead or along for old age, since we currently don’t tend to build several houses :)

I just want to offer the following as a food for thought (and then I’ll be quiet on this matter, after all, it’s your house ;-) ): You are planning for two scenarios: living with children as you currently envision it and living in old age as you currently envision it. But life can consist of different scenarios. Therefore, personally, I wouldn’t plan for something that MAYBE will be relevant in 40 or 50 years. So much can change until then. By the way, I’m also not the type who “always builds new.” But maybe later the desire is more for a fancy condo that is truly barrier-free. There are quite a few people in the house of my old apartment who didn’t want a house anymore (and especially no gardening) and bought into the top floor :-) Alternatively, a child moves back in (that would then really be a two-family house, or it will be extensively renovated by the younger generation again to fit the then-current needs). At most, a caregiver from abroad lives there. But strangers in your own house when you can no longer climb stairs, I rather rarely see (actually never, but maybe I’m not a good benchmark :-) )

That’s what I meant by betting on the future. It can turn out as you plan, but it doesn’t have to. So, I’ll leave it at that now :cool:

How is the bathroom upstairs drained? It's quite a few meters to route it over the floor to get to the toilet downstairs, right?

If you want to build with Sonnenleitner, you can ask .

Really separate yourselves from these possible scenarios and plan a nice single-family house for 2 or 4 people and that's it.
The staircase in the hallway eats up a lot of space due to this division without creating spaciousness.
The ground floor is not suitable for a barrier-free apartment for old bones. Maybe you want peace and quiet and no one above you.
The upper floor is also not a homogeneous apartment for a couple.

How is the upstairs bathroom drained? It’s quite a few meters to run it above ground to get down to the toilet below?

I don’t see a problem here, if necessary the tub over a different pipe than the toilets, which are not yet installed.

We would like to plan ahead for old age or at least plan along the way, since we are not inclined to build several houses right now :)

Why not? I live in my third property: as a single in a condo at 25, then nest-building buying a townhouse at 32, then somewhat more mature at 45; personal changes have always been there. A person or family does not stagnate with their needs.
Personally, I see myself somewhere else again at 65... where, I don’t know. But that’s also good. So why already think about 50 years from now? Aside from that, there are stair lifts and the possibility to make the caregiver happy downstairs with the student bathroom ;)
Ysop puts it quite well:

You are planning for two scenarios: living with children as you currently imagine it, and living in old age as you currently imagine it. But life can consist of different scenarios.

And in both scenarios, that’s a lazy compromise.
By the way, the age is asked about because of such scenarios, which you omitted here.

Number of persons, age: 2 adults + 2x children planned

Sonnleitner is from Lower Bavaria, near Straubing – west of Augsburg it could be, among others, the Augsburger Holzhaus or the Staudenschreiner, with whom we built. For the Staudenschreiner, the setback would also speak in favor, he likes covered terraces, that’s practically his trademark ;)

He also suggested that to us and we thought about it for a long time but ultimately decided against it because it would have cost us too much space inside – although I really like such a covered terrace. But only if you have the space. If you plan with the Staudenschreiner, you will also get heart-shaped windows and he also built with him, a house for his son, also with such a covered terrace and because of that the house became 3m longer. The senior still tells that today *g*. But those are the dimensions you have to reckon with. 3m more house also means significantly more costs, and since your budget is limited (and rather tight), I would therefore decide against the actually quite cool covered terrace. Is the 600,000 euros only for the house or does part of it have to be spent on the land as well? With land, that really gets tight.

Are you tied to the almost square shape? I would design the floor plan a bit more rectangular and eliminate the interior storage rooms (which I otherwise like!) and move them to the outside. Covered terrace out, the three meters from the kitchen island to the terrace door are really tight: 1m deep table and for a chair count at least 80cm – that leaves only a maximum of 20cm as a passage. Even for a thin guy that’s too little!

Cut out your planned furniture to scale from paper and slide them around, then you will see where the bottlenecks are. The all-in-one porker as a house: suitable for the childless couple, but also for the family of 4-5 and then age-appropriate later – that usually doesn’t work. You have to make compromises somewhere or change the property over the course of life. Instead of desperately trying to pay attention to age-appropriateness on the ground floor, I would look to make sure that the stairs are wide enough to be retrofitted with a stairlift if necessary and that way you have dealt with the age-appropriate issue. Own living unit upstairs? Why? Do you really want to let strangers into the house later? I don’t know anyone who does that. Possibly a child moves back in, that can be arranged and if desired a bigger renovation made later. I wouldn’t take that into consideration now. Build for yourselves NOW, that can and should include family planning, but nothing more. Everything else can be adapted then if necessary. That should not be your guideline today.

Oops then I confused the companies.