this is another part of the "rule of thirds":

"When taking a picture with a horizon, place the horizon line on one of the horizontal thirds, depending on the emphasis you want in the picture."

i would imagine the emphasis of this photo would be the water (since the sky looks like a flat gray.)
looks like you could satisfy both by moving the horizon up (the building would be at an intersection and the horizon line would be on the upper third line)....
remember....rules can be broken ... i do..all the time :)

gordie