Now my two cents: The approach with the gallery in the children's rooms creates a lot of space for a desk when school starts. Basically, large children's rooms are very worthwhile. Our children grew up with the luxury of having their own rooms, but these are so small due to the layout of the terraced house that they could no longer withstand invitations in their teenage years. A basement room was added as a youth room and rehearsal room. Maybe you can factor that in and give such a room light or simply make the children's rooms bigger. Carport/garage look huge from above. In practice, it won't be that dominant. With children, it is important to have garage space. Whether both cars will find scratch-free space there in the long term or if one will rather park outside remains to be seen. Consolation: Especially modern premium cars tolerate parking outside well. A parking heater helps against annoying ice scraping. Regarding the roofed terrace in the south, I fear it may cost a lot of light. I would place value on this aspect. In general, the topic of light. If you like it "generous," it is worthwhile to think more about the connection between inside and outside. Visualize yourself in the room. How bright is it without artificial light? How do shadows play? Where is there glare? What do you see from the windows? Where do you want a "protected niche"? Where "open freedom"? At what time of day are you where? Kaho's approach to rotate the axis for separating parents and children on the 1st floor by 90 degrees gives you many new possibilities. Just play around with that.