Bungalow for 4 people with attic expansion - Which floor plan?

no no, it will have 120 at the bottom plus something on top.

Nordlys, you seem to be the only one who understands me, thank you very much for your suggestions/ideas

There are really very nice answers here, the only question is if people are annoyed by my question, why do they even answer

For understanding:
The property is big enough and without a development plan ... period

I don't need 200 m2 to live in, 130 are completely enough for me and I never wrote that I include the attic!!!!
and yes, that's why bungalow, so that I have everything on one level and build out the upper floor for children/stuff or whatever
..

I am a hairdresser expert with a focus on Potsdam.

I never said that I include the Dg !!!!

but also not that you don’t include it. :-/

Take a look at Schwörerhaus, they have a bungalow with a converted roof and approximately your floor area.

and I never wrote that I include the attic !!!!

So (probably not only) I have read

and a guest room as well as an attic conversion where two children's rooms fit as well as a bathroom with a shower