I can understand that it takes effort. Let's see how people react when I call and probe there. From my point of view, it is simply the case that I have an ideal plot of land with an exact southern orientation. Ground level and relatively rectangular, rather longer than wide. Enough space for neighboring construction even if I planned with 20 sqm width. With my own building plan, I am well below the restrictions set by the development plan, especially since the plot has a large area. Besides, I don't need any help from the architect in reading the development plan here. Incidentally, I myself have concrete ideas about the living area and the design of the living space; in particular, I created a floor plan sketch with area measurements in about 30 hours after looking at numerous floor plans of houses of the same size and having carefully considered my own requirements and those of the individual trades. In particular, there are also buffers for individual trades in case they turn out to be larger or if the load-bearing wall becomes wider or if there is the possibility of expanding the building area. Of course, this raises the question for me, if I use this sketch along with the area and height calculations, where the service of an architect is in direct comparison to the construction company with its team (they can also work out the later details with their architects). It is relatively different compared to the customer who has no concrete ideas yet and possibly has a difficult plot, whether due to the location or the building restrictions. In such cases, the high art of an architect is certainly often required. Furthermore, my ideas in the partial trades are quite precise. It is then simply the case that no one can tell me exactly how it will turn out and what I should still prepare for the first conversation or for an initial inquiry. Nevertheless, the criticism here has helped me progress somewhat and also motivated me to specifically read up in other places on the internet or here in the forum. Many thanks for that.