What the insertion requirement refers to is already precisely stated in the law
I saw the hint, you can stop waving now Thanks for the summary, that is very helpful!
What do you want to do differently than the neighbors?
Actually, it’s just about giving the attic as high a knee wall as possible, so as to gain space there and so that the sloping ceilings don’t disturb the rooms so much.
For me, a no-go!
At our first consultation with a prefabricated house provider, we also had a design with an integrated garage. With a semi-detached house width of 6.76m, however, that was rather unfavorable from my point of view. However, back then we were not yet clever enough to ask about widening the house. With a later provider we brought up the topic of house widening and they quoted 90cm for 26k extra. It would definitely be an option if you don’t need so much space in the basement anyway. We still have to research and consider what we want and what is important to us.
Compare the planned building with the existing one regarding the building volume.
OK, let’s do that:
Here I assume a ground area of 7 meters width x 10 meters depth for one of the new semi-detached houses, which can still be increased if necessary, as the plot certainly allows that. So in terms of house size, it will not make a big difference in the street view.
To fill the crystal ball a bit with images, this is the existing house:
The current basement / lower floor is very low; at 1.86m tall, I almost hit my head on the ceiling. That would therefore be raised somewhat. What clear ceiling height is appropriate there if the entrance area should also be in this storey, around 2.35m?
The current attic is also quite low. Overall, the house would probably end up a bit (let’s say 1m) higher than the current one. Since the plot lies in a slight depression (the street slopes up slightly on both sides), raising the height would probably align it level with the neighboring buildings in height but not necessarily make it higher.
From my subjective point of view, a smaller roof pitch would also fit in wonderfully.