At 35 to 55° DN and knee wall 120, [Zwerchhäuser] are rather less needed, and dormers also make little sense there.
Above approximately 42 to 48° (i.e., in terms of perspective distortions, "felt" 45°), in my opinion, one should keep distance from floor-to-ceiling or otherwise strongly vertical windows (on the gable sides), otherwise I would find the vertical emphasis too much.
Whether a village image absolutely must be preserved as it looked in the early days of the railway, I dare to question. The emperor won't come back from that.