Floor plan planning shortly before submitting the building application

A good idea. I will inquire about it, because above the stairs it doesn't help me much; especially not with the left of the two spots.

Visually, it is perceived from the inside as if the spotlight is just hitting the ceiling.

A very good suggestion; thank you very much!

Visually, it is perceived from the inside as if the spot is just hitting the ceiling.

It will probably be like that either way. Of course, with the change, the timing of the maximum "midday" brightness shifts.

Once again, a bit more clearly:

How are you supposed to save €600/m³ when the average construction costs are around €350 - 400/m³?

There’s definitely something seriously wrong here.

This was about the volume reduction by 41 m³ through lowering the wall heights.

I now have the result. Neither €600/m³ nor €350/m³ were saved, but only just under €50/m³. That’s a total of €2,039. I’m actually surprised that it is so manageable. One tenth of the utopian sum from the construction consultant. You get exactly the same kind of differing statements from “experts” regarding heating.

I now have the result. Neither €600 / m³ nor €350 / m³ were saved, but only just under €50 / m³. That is a total of €2,039.

That is realistic, considering that only a manageable amount of material/time can be deducted.

One tenth of the utopian amount from the construction consultant.

Maybe he uses a crystal ball?

You get exactly such different statements from "experts" regarding heating.

That is a blanket criticism which is little helpful without concrete reference.

Our house construction contract includes basement walls as reinforced concrete double walls with a thickness of 30 cm filled with WU concrete.

Our construction partner asks that, contrary to this description, no prefabricated walls be used, but that formwork be done on site. This would save time, and the excavation pit would not have to remain open for long after the earthworks due to the bad weather.

Can this be done without any concerns? I was told that it has no impact on the perimeter insulation.

Completely in cast-in-place concrete, therefore seamless, I find very appealing. I had no concerns about it.