General procedure / schedule

Well, I don't know anyone here personally. I don't know about the individual experience or knowledge. Besides, it must also be said that experiences are usually only available from one provider (see answer to Hanse Haus).

I have to question a lot to distinguish between well-founded knowledge with a broad spectrum and subjective opinion. I mean, I have been reading through forums or watching YouTube videos and listening to podcasts for 2 months already (over 8 hours a day). I would say I have already gathered minimal knowledge. And so that I can replace wrongly learned knowledge with the correct one, I have to do it this way. It's not like I don't agree with some people, but a lot is just a personal opinion.

And according to some opinions in this thread, I shouldn't make special requests because they won't be realized anyway as they fall outside the norm. That sounds more than illogical. Sorry, but that's just not my way of thinking and acting.

And you also have to consider that maybe some people are currently holding back on building a house because of Corona. Baukindergeld and Bauzuschuss are gone anyway, so I don't think that all order books will be full in the next few years. That’s at least my opinion... or is there evidence for that, real evidence or just all personal opinion and theory?

At the moment, only theory. The practice still looks different right now. Not an opinion, but professional experience. I work partly with developers who are also general contractors. Having order books filled for two years is good. If it were predictable, some customers could even fill 3-4 years. One more note regarding overall demand. Here in the Lower Rhine region (35 minutes to Düsseldorf city center, 20 minutes to the Ruhr area), even existing properties sometimes lead to bidding wars, because the demand for residential real estate is immensely high. Listings for reasonable houses last 12-24 hours, then the conditions are negotiated with 50 applicants. It’s no different for plots of land.

Since many build without a basement or are in other federal states, the batch size is definitely not >100.

Even when stated with great conviction, this remains nonsense. You can be sure that those home providers who have a framework agreement partner for house-basement bundles invariably purchase well over 100 basements there per year. Likewise, you can be almost certain that home providers in your desired size of around 200 houses per year do not have fixed basement partners. But I also clearly advise against such providers: in the segment of classic timber frame panel prefabricated houses, there are essentially three types of providers, one type of large providers (nationwide, high unit numbers, well-known names) and two types of small providers. You have already correctly recognized the disadvantage of the large ones; there you are just a number. Otherwise, they differ more in the degree of seriousness, especially in sales and calculation, than in construction methods. For the small providers, it is different: I can only recommend those who are owner-managed and regionally focused. Only homegrown craftsmanship goes into the sausage there; these are artisanal carpenter houses. Not infrequently, these providers are also highly innovative in this regard — recommendations from the forum include Staudenschreiner or wir leben Haus. But these are typically providers with quantities well below 100, usually about 40 to 60. I strongly advise against those you consider the principally most suitable: providers focusing on 200 or more houses per year are semi-industrial and, apart from compliance with the Energy Saving Ordinance or even KfW standards, conceptually far behind. That means they build the same barracks as fifty years ago, aside from insulation standards and new heating technology, that established the cardboard-box image of prefabricated houses (which still fuels many solid builders as a sales argument today). But this is all mentioned only in passing — because I have not yet gained the impression that you are really the type of builder for a prefabricated house (on the contrary, I am all the more sure that your preferences are firmly based on a number of misconceptions).

ok good order situation I have nothing to say against that. Could be. Do you think the FHA tell you how full their books are? Ok you would see it just from the time indications for the construction. But no company would reject an order or say I’m not taking the 400,000€ or whatever it is unless it really is not feasible in terms of personnel etc. We acquired the plot in a silent bidding process and it’s near Munich. I know that only too well

yes you are right and I am not talking about the big providers and batch sizes for the basement but rather about small providers. Hmm so you want to tell me that for example a Regnauer house or a Baufritz are bad and outdated? Can you please explain that further? As I said I would like substantiated facts Thanks anyway for the house names

So I can describe my sister's experience. However, it was about a solid house. At first, they couldn't find a suitable company because most didn't want to proceed after the specifications "slope" (hence with a basement that is at ground level to the garden) and "end terrace house" (the other houses in the row have been there since the 90s). Then they had an architect for the planning, but even with a finished building permit and all the necessary plans, no general contractor wanted to take on the project. Many didn't even respond after multiple inquiries, others sent extremely high defensive offers. In the end, they are now building with individual contracts and a civil engineer as the construction manager. The whole search ultimately cost them 2 years. And we are here in a rural area where most plots are under 50€/sqm... so much for the market situation. Since prefab house providers are, in my experience, even less flexible than the solid construction general contractors, I wouldn't expect too much interest in "more complicated" projects.

Thanks for the input. I really can't say right now how the providers I will contact will behave.

I just don't understand what is supposed to be so complicated about my project. I basically just want to save costs and maybe take different approaches or structure the offer in advance (e.g. through a preliminary sampling) so that I won't have to spend an extra 100,000€ on sampling.
Who wants to buy a pig in a poke? After signing, the company can basically dictate prices to me however they want (putting it bluntly).