Improve floor plan - how?!

I had mentioned the note about the pump. To what extent a builder informs himself is his own matter. Is your plot on the original ground level or on that of the street?

Thank you, I can work with that. I have filled in what I knew off the top of my head. It was not clear to me, for example, that I need to have data on the heating system ready in order to get advice on the floor plan. It may be that I am also naive and uninformed about other topics related to building, including heating, but originally I had no need for advice on that. Because I had assumed that we had handed it over to professional hands. Maybe that is frowned upon or even a mistake, but I just can’t do it myself. Sorry!

You don’t have to apologize and you haven’t done anything wrong. Find out which information you can work with and which you cannot, and continue to dare to express your questions/problems in your own way. I would find it a shame if some people no longer dared to do so because they fear a harsh response. No one here has more rights than you or anyone else here, so ask in whatever way suits you!

therefore currently somewhat harsh in the responses. On the one hand understandable, because simply the most basic, pinned posts are so often not read and you always have to request them again.

That's how it is

The questionnaire is quite sparsely filled out, calculation is completely missing.

That as well.

I was not aware that I, for example, need to have data on the heating system ready in order to get advice on the floor plan

It's not stated anywhere either. It's only important because of space requirements.

Do you consider the air-to-air heat pump to be unfavorable?

This is the question I mean; you should discuss it in a separate thread.

Otherwise, too many details are missing, and I refer again to the note in #26

The existing terrain is to be filled up everywhere and as much as possible? Am I seeing that correctly? How does that come about?

Go back to your BU and have more suitable floor plans presented to you. Your 'consultants' seem to be more salespeople than construction professionals; so you need to be twice as careful.

@11ant saw it correctly: instead of giving a city villa a knee wall, it would be better to work with another house type here (which I then call a 1.5-story house) as a basis.

You can’t just "give" a city villa a knee wall – you can only chop off two corners at the top to lower the eaves of the attic into the upper floor and rename the stubs of the former straight walls as knee walls. But that is simply foolishness from house sellers. I also miss the clarification of the reason why this may have happened: height specifications from the development plan or budget specifications from the builder – and was she really only presented with that one initial floor plan (and of all things one of a city villa, when every provider also has a "country house" line in the program)? The illustrated terrain modification also makes me continue to doubt professionalism. It seems exaggerated to me and is also not associated with any recognizable purpose. On the topic of heat pumps: 0. it doesn’t matter who introduced them here, but it does make sense to split fundamental questions about heating technology into a separate thread (if the ones already existing are not sufficient); 1. the heating technology and the house belong together, i.e. you can’t focus on an "optimal" heating technology and then change the energy standard of the house (energy saving ordinance, KfW55, KfW40, low-energy, passive) without having to change this decision too; 2. the advice on this is only worthwhile from an experienced professional company: general contractors – "finished" house builders almost always, with the "solid" builders at least the big names – do not advise neutrally here but have their volume bonuses from suppliers in mind. : we don’t say all this to make you feel stupid. You have simply – like tens of thousands of other laypeople too – overlooked that the professionals you got in touch with are above all cunning experienced pickpockets whose feigned efforts for your building dream do not come from the heart. But now you have found in this self-help group of many dozens of other laypeople who are also currently mastering or have already survived a similar situation.

The existing terrain is supposed to be raised everywhere and as much as possible? Am I seeing this correctly? How does that come about?

Go back to your BU and have more suitable floor plans presented to you. Your 'advisors' seem to be more salespeople than construction professionals; so you need to be doubly careful.

This is the elevation profile for our plot from the development plan of the new residential area. I have nothing to do with it and no influence over it. It was also not known when purchasing the plot, but either you wanted a plot or not. We have to work with it as it is.