Floor plan evaluation - saving square meters single-family house

Yep. The door would be at that point. Can't the chimney be located somewhere else? Is it a must?

I edited my post above because I had only read the others afterwards

I would leave out the fireplace. When your little one slowly becomes mobile and starts crawling, you might not use it very often because of the risk of burns. The topic of wood and ongoing costs was already mentioned above. Instead, I would rather build a nice fire pit in the garden or on the terrace. You can then use it all year round.

In our current apartment, the corner 46x47cm has ETICS. [...] We would find one meter of wall in the corner a shame

I would only take 36.5 cm wall thickness and see the ideal wall pillar here at 75 cm length of the wider side (orientation does not matter). With 42.5 cm wall thickness, you can also make the pillar 36.5 cm (square) and put 6 cm insulation on it.

I would only take 36.5 cm wall thickness and see the ideal pier here at 75 cm length of the wider side (orientation doesn't matter). With 42.5 cm wall thickness, you can also make the pier 36.5 cm (square) and put 6 cm insulation on top.

We want/will build without ETICS...

By the way, you can no longer buy wood, except expensively or through connections…

Is it really like that with firewood where you are? Here (Berlin area) you can buy it anytime in large quantities and varieties at different prices, whether through private or company classifieds or at the hardware store, freshly cut or already dry. Especially after the storms in winter, there is still so much lying around, so it should be no problem for a long time.

For me, the fireplace would be the very last thing to leave out. A fire bowl outside wouldn’t be an alternative, as it doesn’t provide any warmth indoors.

We want/will build without ETICS...

I have already understood that, and when it comes to ETICS, I myself am a vegetarian. The discussion was about cladding only the pillar, then it could even be made of aerated concrete.