How much savings through building materials to quasi-wholesale equity?

Yes, it is true that there are good craftsmen elsewhere as well. The German narrow-mindedness that you encounter here is sometimes hard to bear. The problem is, if you are a layperson yourself, you can't immediately tell who is a good or bad craftsman. Of course, this also applies to those of German descent. However, I imagine that by asking questions, I can at least find out whether someone is just babbling or really knows their stuff. If the person opposite me doesn't understand me at all or only poorly (and vice versa), it is already more difficult to figure that out.

Apart from that, when you drive through the Polish countryside, you really feel like a poor bastard. The houses standing there are insane.
That statement is so right!!

And to get back to the question. Material markups of 100 percent are not uncommon. Often even more. Much more.

Material markups of 100 percent and more may apply to small parts, but certainly not to material that is carted onto the construction site by the pallet. Especially not if I can possibly check what the craftsman (or let's say in this case crook ;-) ) pays my colleagues for it.

As long as you don’t know the +X%, no one can tell you what you COULD save. Without any details on the project/material, no one can tell you what you could save on painters and so on. It’s all nonsense that way.

That’s why I also asked for a rule of thumb along the lines of: “What does the material cost approximately for a shell construction of 200,000 euros?” If it were 100,000 euros, I could estimate: 100,000 euros equal mason equity + 25% markup + 19% VAT, so I would pay xx.xxx euros less for the same material.

I have to start somewhere and eliminate a few unknowns at least partially. Hence the assumptions above of 600,000 euros for a standard single-family house with around 150 sqm turnkey in price-performance winner execution, so without golden faucets, but they can be from (Hans) Grohe.

Plus the statement from the building materials market manager, assuming that it’s possible with the material and if the craftsman charges a “handling fee,” then you can discuss that. He doesn’t have to pay invoices for that, has less accounting effort, and no capital tie-up.

And X0,000 euros savings through cheaper material, help from relatives, and EL versus turnkey construction can tip the scales significantly toward the east.

But I’ll ask a friend of my mother, who is (quote my mother) “an architect without a diploma” with 35 years of experience as a draftswoman and is really getting deeply involved in my brother’s plans right now. Maybe she has some figures or rules of thumb.

Thanks to you all!

Of course, it depends on what you understand by a shell construction.

Well, I would roughly estimate the material at a maximum of 20,000 euros. It naturally depends on what and how you want to build.
But it's not as much as many think.

I already know what comments will come next, but I can live with that.

I have to start with something and at least partially eliminate a few unknowns.

Let's take a shell construction. Costs €180k - of which about €75k is material. But that doesn't help now, because you don't know if and/or how much the craftsman's surcharge is.

Example screed. The screed layer gets the material at wholesale price and installs it. No markup. Electrician is the same. That's how I often know it. Last experienced it myself as well.

The headline should rather be, "A Swabian builds in the Black Forest". :D
seriously, only you know the x and xx, and there will hardly be any pure service providers as craftsmen.
(You’re also bringing the oil for the oil change to the workshop? Those comrades really exist.)

Regardless of the actual topic, even branches allow bringing your own oil and I claim anyone who doesn’t do that is stupid. There is a huge difference whether I pay €8 or €30 per liter of oil..
So you gave the worst example in that area :-)