Optimize new single-family house floor plan

Yes, there are no dimensions shown in the drawing, but for the design, the base area (?) is given as 11.05 m x 10.48 m. Including the converted attic (nice studio), it then totals 257 m². As for the price, I have not found any information - but I also did not search for it. Is this Arge Haus Berlin rather expensive? Or were you referring to the features shown in the original?

I was particularly unable to find any measurements in this so-called "similar only in the main body area" draft that would have made it comprehensible to me how the drawn staircase is supposed to "work out" dimensionally in the original. And yes, in my impression Arge builds with the focus on B, C/W, or R salaried clients – it is difficult to translate that to A or BAT (unless, of course, you remove the side wings from the villa).

In my impression, Arge builds with the focus on B, C/W or R paid clients - it is difficult to translate to A or BAT (except, of course, if you truncate the side wings of the villa).

What do these letters/abbreviations of the pay scales mean?

Google "Besoldung öffentlicher Dienst".

Oh, I see. Found it. I have no information about who Arge usually builds for. This city villa is in their reference catalog, i.e., it serves as a "This is what we also build" reference, but it is not their standard.

It was probably less about this Arge building exclusively for civil servants and more about the fact that its offer, due to the increased entry price, is primarily aimed at higher income groups. You certainly don't have to be a civil servant to become a customer there.