Oh, they often show up in the center of town, or there are more than seems right, sorry I see that I came across quite rude there. I just often reroll until the gate wards are either gone or really out of the way, or I find myself warping them down. They are the areas for the guards and such, right? Sorry, I really do love this software.
No worries at all. Here are a couple of my comments on what a gate ward is: link1, link2 (people ask about it a lot). So it may contain some... guards-related buildings (barracks, armories, a gatehouse itself etc), but definitely not only them. Like with the most of other ward types the name of this one is supposed to be treated as a hint, not as a literal explanation what is there. Also I'm planning to replace them all with something more subtle in the future.