New single-family house, but for whom?

But wouldn’t that be more of a disadvantage energetically speaking with regards to photovoltaic systems? It should have a slope of 20 - 40 degrees and a correspondingly large surface area, right? And the weather resistance is apparently not optimal either. We first thought of a shed roof. That way, you could use the entire roof. But then you would look at the slope from the entrance and the garden, which we don’t like. That’s why we went back to the gable roof.

How high the knee wall will be in the end, we will have to see. The higher the better, of course. But since we are limited in height, there probably isn’t much room for maneuver. Also, the ground floor is 12m wide and the upper floor 10.5. The calculation with slope, height, and knee wall is too complicated for me.

First, you have to adhere to your development plan, which apparently states a ridge height of 7.5 meters, which is not very much... If two floors and a roof with the above-mentioned pitch fit in there, then everything is fine.

Good evening,

Now the question for us beforehand is whether we should tackle the construction completely through a construction company (with an independent construction supervisor), or whether it would be better to have the construction company only build the house, so that it is finished from the outside and we have specialists do the interior (especially the heating and sanitary areas) ... The underfloor heating, screed, and tiles would be installed or poured in self-performance.

You want to start electrical/sanitary work in the electrical installation directly after the shell assembly – it is almost inevitable that warranty issues will arise as soon as the screed is to be poured.

My recommendation: Have the finished shell construction delivered, if necessary also the electrical and sanitary rough installation, and then contract the (small) remainder – minus your own labor – yourself. Experience teaches that you probably will not save money, perhaps order better equipment instead of the supposed savings.

Best regards from the Rhineland