Building plan stipulates knee wall is inadmissible

Ypg dormer windows are also not permitted

11ant 10.2 meters should be more than enough. The partner who is building with me is a good old friend, he will of course be involved in everything

Please bring a bit more clarity: size of the building envelope?, ridge direction specification? floor area ratio, etc. I am not sure if the gable side can be extended indefinitely to make the upper floor more usable. 0m knee wall +35° roof pitch is still possible. Even with a "normal" gable length of 10m, rooms in the upper floor remain with a width of 3.40m each, of which 2m are well walkable, under the slope then bed, bathtub, desk (under double casement window) depending on the type of room. See hand sketch. [ATTACH alt="35.JPG" type="full"]37819[/ATTACH] So it is not completely unusable. You can still play a bit with the position of the collar beam, maybe about +20cm in addition to my sketch.

Mottenhausen the building window is approximately 13/14 wide × 16 deep. No floor area ratio is specified. Maximum room height is 3 meters. I would definitely try to fully utilize 8 meters in width and then go up to 10 to 12 meters. However, the development plan does not allow dormer windows. Does this automatically exclude a bay window as well? Thanks for the drawing

In case I forgot something

However, the development plan does not include any dormer windows. Does that automatically rule out a bay window as well?

"No dormers" usually also means "no cross dormers," but it does not say anything against bay windows; however, such windows would not help you with your desire for less slope at the base of the roof.