Bront said:Rheim is a city built on itself, with buildings but up against each other, some on top of each other, and even some elevated paths. In this particular case, the roof the man is on is small, and the only immediate way onto the roof appears to be from a ladder on the wall of the building adjoined to it, or perhaps there is a door in the building itself (which looks like either a private residence or some other non-open to the public busines). The building itself is 2 stories tall (much like Valdor's building).
If you want to gamble, you could try to jump from Valdor's building, if you think you can clear the 15-20 foot gap.
Hmmm no that looks like a bit to much to clear

As the I can't enter the building itself and it looks like I can't circle round to the back I'll follow Kali up the ladder, I suppose she'll use that.