ᐅ Ridge direction: parallel to the street or at a 90-degree angle?

Hello,

the development plan for our building area does not specify the ridge direction. It only defines the buildable area on the plot (building boundary). Our plot is not a regular rectangular shape but an irregular one (see image). The inner dashed line represents the setback area. The road runs along the southern edge (at the bottom), where the driveway is also located. The detailed development plan does not mention any ridge direction requirements. This is also reflected by the existing houses, where the ridge does not always point in the same direction.

Because of the irregular shape of the plot, we wanted to position our house at an angle to make the best use of the south/west-facing area. Suddenly, a guy from the district office says no, a house always has to be parallel or perpendicular (90 degrees) to the street. He said he cannot approve an angle of about 70 degrees. I cannot find any information about this anywhere. Our architect was also unaware of this, as the development plan does not contain any such details, so it was assumed that within the building boundary, we could rotate and position the house as we like. Now I am a bit speechless. Has anyone ever heard of such a “rule,” or was that guy just having a bad day?

If this really stands, it will be very difficult for us to orient the house or design the floor plan 🙁