I can't believe the calculation is correct. Without a basement, basic equipment?
You can believe what you want. Yes, without a basement, whether basic or not, everyone has their own opinion. Since we didn't build with a general contractor but through individual contracts, we didn't have to order standard packages but chose exactly what we liked or what our budget allowed. As already mentioned, we have electric shutters everywhere, a masonry fireplace, underfloor heating but with a gas boiler, walk-in showers, a water softening system, windows anthracite inside and outside but PVC. For the garage, we only have a prefabricated garage with a storage room included. Oh, and the calculation also already includes all the new furniture. I just wanted to show the original poster that it is possible. True, we are not under 400,000 but if we had left out all the bells and whistles like the fireplace and windows, tiles not from Villeroy & Boch, and cheaper flooring, we could have saved quite a bit. But you only build once.