Single-family house 159 sqm - Straight plot - Correctly calculated?

I always find it amazing how high the costs for architects are. That is absolutely not in any relation to their amount of work.

Nico: your statement shows a complete misunderstanding of the role and task of an architect, compared to a draftsman.

In this context, we would of course also be interested in the document listed in the attachment, to see if we are interpreting it correctly.
If the corresponding property is purchased and for some reason, let's say job loss or Corona, we CANNOT start the construction. Will then "only" 95% of the market value be refunded and/or a penalty of max. €20,000 be imposed?

Additional costs, surcharge for special features and requests (!!!), as well as outdoor facilities and kitchen, I consider to be calculated too low.

We are currently building a prefabricated house about 30 km from Stuttgart.
Plot 500m², without basement, 140m² living space. We will probably come to around €650,000.

There is still so much missing in the calculation.... What about painters, flooring, bathroom fixtures, lamps, insurance, various other incidental construction costs? The 5k€ for the exterior facilities won't even be enough for the material. If it's tight anyway, I would think about that very carefully.

Go to GUs and see what they say. I think you can still save a five-figure amount.

Sure, it MAY be justified that such an architect gets that much. But on the other hand, if you run into a less talented one, you have the crap on your shoe...