160m2 detached house in timber frame construction on the north slope with basement

Yes, that's what I meant, it counts as living space for me. So far, only HAR and "Keller" are planned downstairs.

Yes, that's what I meant, it counts as living space to me. So far only the utility room and "basement" are planned downstairs

Yes, it's just the entrance, it should be cozy.

And the utility room and storage are currently somewhat oversized, as it's a bit unplanned.

Instead of the office on the ground floor, you could then integrate a pantry/storage room on the ground floor.

But the OP probably doesn't want to hear this advice????

Today's timber frame buildings are not inferior to solid constructions.

Basically, I agree with you, but: a sales or auction result has to be realized on the market, and the market still has a considerable number of participants on the demand side who consider a prefabricated house per se to be a cardboard box. In addition, the construction is often insufficiently documented. A second owner often has remodeling wishes, which are easier to realize (at least in a monolithic) solid building and whose feasibility can be statically clarified in advance. This makes the bidding battle noticeably less fierce.

Basically, I agree with you there, but: a sales or auction price has to be realized on the market, and the market still has a significant number of participants on the demand side who consider a prefabricated house per se to be a cardboard box.

In addition, the construction is often inadequately documented. A second owner often has renovation wishes that are easier to realize and structurally clarify in advance in (at least: monolithic) solid construction. This makes the bidding war noticeably less heated.

Many prefabricated houses were and still are partly "cardboard boxes." Not as extreme as before, but indeed this cannot be completely denied. However, there are definitely providers whose trades can easily keep up with solid construction. And the documentation can certainly be managed.

That banks sometimes still have difficulties with this does not really surprise me – they often have little or only rudimentary knowledge about building (even though they grant loans regularly).

Today is a seller’s market. Demand is (still) huge, supply rather limited, and prices tend to rise faster rather than slower. I have been observing the market in southern Rhineland-Palatinate for almost 15 years. What has happened with prices during this time is almost unbelievable. Partly a reason for us to look for options further north. There too, it will only be a matter of time before prices take off as well.

Expensive building land then inevitably leads to savings when building a house: and then "cardboard boxes" arise. Almost no one can arbitrarily increase the available total amount. And with plot prices of more than €500/m2, it becomes difficult.

Expensive building land inevitably leads to savings when building a house: and then "cardboard boxes" are created. Almost no one can arbitrarily increase the total amount available. And with plot prices of more than €500/m2, it becomes difficult.

Yes, I think the whole thing takes on curious forms when a family of five near Munich squeezes into a Flair 113 on a slab.
On the other hand, probably still better than in an equally overpriced apartment of only 70m².

And the documentation is certainly feasible.

But the client must also demand this. I expect a bit more mergers and/or portfolio cleanups among prefab house manufacturers, and then often no one feels responsible for drawing archives.

Sometimes a reason for us to look for options further north.

Subjectively (not measured), I have the impression that in NRW a plot of land already has a greater risk of being divided for a semi-detached house at about 650 sqm.