Floor plan design, 2 full floors, approximately 130-140 sqm without basement

Speculation: Preliminary project = preliminary planning?

Ah yes, you are correctly guessing there, thanks.

It is supposed to be like that in DE as well, that some GCs don’t want to start without plans, so they don’t have their own draftsmen under their yoke...

The problem here (in HR) is that the OP (unfortunately on a GC-bound property) is struggling with a draftsman of the GC who is a complete idiot, as they say: all of the draftsman’s proposals are politely rated as "completely missing the point," he slams doors into the corners without any stops, etc. The OP then tells the draftsman what he wants; to my knowledge even in their common native language (is that true or is it a deliberate misunderstanding between Croat and Serb here?). Then the draftsman draws something new, partly contrary to "all" (very sparse) previous learning successes. When the OP then brings up any demonstrably buildable proposal (because taken from a catalog house from DE or AT), the draftsman claims an allegedly statically impossible feasibility. At the end of August I already offered the OP help with the drawing implementation. Additionally,

Preliminary planning must not be changed in important matters in Croatia,

which basically means that you cannot submit revisions for the building application, but the first shot must be a hit. With this draftsman (for whom the Swabians have a funny term) that is probably almost hopeless. : does the GC not have even one of his already built houses that could at least be simply copied 1:1 as a functioning solution?

Don't make life so difficult for yourself: there have already been one or two variants. Then it was supposed to be a third children's room, and everything started over again. Every house provider has a house that takes your premises into account. Just take a look at Towns & Country, Viebrockhaus or Heinz von Heiden, Team Massivhaus, Scanhaus Marlow Marlow or Danwood. Each has a house between 120 and 130 sqm to offer, which fits your plot and is suitable for 4 people.

@prm2021[/USER]: Does the general contractor not have any of the houses he has already built that could at least be simply copied 1:1 as a functional solution?

Excuse me, who is the general contractor? o_O Do you mean the architect?

Don’t make life so hard for yourself: there have already been one or two variants. Then it should be a third children's room, and everything started over again. Every house provider has a house where your premises are considered. Just take a look at Towns & Country, Viebrockhaus or Heinz von Heiden, Team Massivhaus, Scanhaus Marlow or Danwood. Each has a house between 120 and 130 sqm to offer that fits your plot and is suitable for 4 people.

Thanks for the tips. Very glad, but we are not in Germany... Do you maybe know what exactly these houses are and where to find them on the internet? There are few such smaller houses with 2 full stories. Or shall we look at examples with 1.5 floors and simply build it as a full story...

Sorry, who is GU?

GU = general contractor = construction contractor for the entire house.

Very glad, but we are not in Germany...

Very glad = very nice, this Google Translator ...

Do you perhaps know exactly what these houses are and where to find them on the internet?

With both Hebel and Ytong kit houses, you should be able to find plans that are also suitable for building permits with other building materials.

There are few such smaller houses with 2 full stories. Or let's look at examples with 1.5 floors and simply build up to a full story..

You can do that well, the other way around would be difficult. If you change a one-and-a-half-story house model to a two-story house model, you naturally get more square meters upstairs than in the "original." With a "Raumwunder 100" from Town & Country, you could already come to about 120 sqm.

There are few such smaller houses with 2 full floors.

The companies I mentioned all have what you are looking for! This is what I wrote: they all have urban villas, 2 floors, 120-130 sqm.

Very glad, but we are not in Germany...

You can find them on the internet. You have the internet, so enter the companies into the search engine. Nowadays, every child can do that, no matter what language they speak.
You can save the floor plans from anywhere and that’s it.

Do you maybe know exactly what these houses are and where to find them on the internet?