House crooked, pavement crooked or exterior plaster crooked?

The most likely scenario, of course, is that the pavement has a slope. But it should actually slope down to the right in the photo so that the water doesn't run towards the step. I also think you should measure what is level. Once the pavement parallel to the house and then again 90 degrees to the house wall (does it slope away from the house?). And roughly at the base as well.

From the category "the same old story" by the way "Seglock" also asks this question in Thread 140858 - again without any indication of a cross-posting. Unfortunately, netiquette is increasingly being lost.