New house - Which flooring is suitable?

BT = developer and GU = main contractor? Apparently, I don't know all the abbreviations you use.

Hello,

Especially since the material costs are added on. For us, it was over 1 cubic meter of screed

Respect, you must have built something really big. Even if 1 cm more screed were necessary everywhere, that would be a 1000 sqm house area. Ok, that’s no longer my league...

Seriously, such actions probably only amount to about 250 liters of screed in the end. And normal cement screed probably doesn’t cost more than €25 per cubic meter. It’s coarse sand, some cement, and some water, nothing more!

Best regards,
Andreas

BT = developer and GU = general contractor?

Simply put:

BT = developer = in the end, you buy the finished house and the land together from the developer. You are not the builder but a customer of a product and have no rights to the house or the land before the transfer of ownership. If push comes to shove, the developer can kick you out.
GU = general contractor = they build a house on your land on your behalf. You are the builder with all rights and duties, and everything on your property is legally your ownership at first. If push comes to shove, you can kick out the general contractor.

Best regards,

Andreas

One more reason to avoid developers like the devil avoids holy water.... a general contractor building on my property can't afford such games.

The best thing is to build on your own land with your own money. If you don't have money, you need a bank. If you have no land, the only option is the developer (or some kind of compromise, concessions on your wishes...).

BT = developer and GU = general contractor?

BT, developer, builds houses on their own land and then sells house + land (purchase contract).
GU, general contractor, builds complete houses according to the existing plans within the scope of a contract for work on third-party land.
GÜ, general principal contractor, designs and builds houses within the scope of a contract for work on third-party land.

BTW:
Architect-designed house: A house individually designed by an architect. It can then be built "turnkey" by a GU or built "by individual contracts" with construction management by the architect.

Developer business often/typically includes the development and construction of large plots (terraced housing developments, condominiums, ...).

What do you mean by that? If everything is on the same level, that's good, isn't it?!

Everything on one level in the sense of "no height difference" between the rooms. It would be good if each room has the required screed height that matches the floor covering. Then, afterwards, when the floors are laid, everything is at the same floor level.

Thank you very much for the explanations!!