Construction costs are currently skyrocketing

Are we talking about multi-story apartment buildings here?

Yep. So you have to add a bit more for the single-family house.

This clearly shows that it is hard to build a single-family house for €2,500/sqm (currently), when not even the residential complex with 400 (average) apartments comes close to that (in a structurally weak area).

Yep. So you still have to add a bit for the single-family house.

That clearly shows that building a single-family house for €2,500/sqm (currently) is hardly possible when not even the residential complex with 400 (average) apartments gets close to that (in a structurally weaker area).

A bit is an understatement...
Do you have figures for plastering, screed, laying tiles, filling, painting – in other words, interior finishing in multi-family housing – per sqm?
Gladly via PM.
I have an appointment tomorrow with a major project developer from Hesse.

we also wanted Braas Tegalit. ;( Do you happen to know when it will be back in stock?

No idea. I'm just glad the roof isn't going to be uncovered for months now. Who knows how long the Frankfurter tiles will still be available.

We also receive roof batten from Creaton. However, we had already switched to concrete some time ago. We were not informed of any delivery failure.

I have no idea about that, but if the pure costs are 2700/sqm, how high is the usual selling price? Not in Munich or something like that

Around September last year, apartments in 4 to 6 multifamily houses were offered here (village in NRW/Münsterland) for just under 4K per m². Currently, apartments in new buildings are being rented for around 10 euros per m². What might a square meter cost in sales now? The 4K has probably already been exceeded?

RIP single-family house new construction 2022. That's it now, these are the aftershocks.

What might one square meter now cost in sales? The 4K will probably already be exceeded?

They would cost on average over T€ 5. If the land were free, then still T€ 4.5.