New construction 2025/26 in BW - feasible with 950k all-in?

is your utility basement inside the thermal envelope or outside? Do you have an idea of how much extra the basement cost you?

For small plots or €700/m² building land, a basement makes sense. For large plots, if the land is flat, I would rather build bigger without a basement.

As far as I know, you have a bungalow occupied by two people. If a family with children lives on 2 floors in several closed rooms, that's a completely different story. In that respect, this statement is too general for me, and before I would build a fence, an expensive garage, or other things, I would invest the money there first. What is really "necessary," that is the real question here again and again. Here in our open-plan house, the two of us could probably live without controlled residential ventilation and without air conditioning, and yet I would do both again. Is an air conditioner necessary? No, but it's great that we have it. Ultimately, everyone should, and this happens too little, consider their own needs FREELY and then decide accordingly. In that respect, everything is necessary or also unnecessary. Actually, I once switched off the controlled residential ventilation for a few days, and after our return, I did not like the smell at all; controlled residential ventilation usually brings fresh air quality into the house. Depending on the personal living situation and lifestyle, it also works well without it, no question, but in a classic single-family house with children living in it and often animals as well, controlled residential ventilation would be at the top of my list.