Actually I'm fibbng; the image above was Photoshopped. The real house looks like this:
Notice that almost nothing lines up. While the bay window seems to be centered in the facade, the bracket above it, which one would expect would be centered, is several inches to the left (see below). Meanwhile, the middle porch column stands obtrusively in front of a window (I deleted it from the first image) and is even farther left of center than the roof bracket. And the left and right ends of the porch roof overhang differ from each other.
Why do such flaws occur? Why can't architects or builders get things lined up?
The reason is that when buildings abut, as they often do in urban environments, architectural features such as roof edges cannot turn the corner as they would on a freestanding house. The roof overhang on the front of this house couldn't be continued on the right side, because it would intrude on the neighboring house, which would create not only an aesthetic problem but a legal one. So the bracket on the right was pulled in a bit from the edge(below), even though the bracket at the left side is flush with the left edge of the house. To make the whole assemblage look more three dimensional, that is, to give a sense that at least part of the assembly turns the corner, the topmost molding was returned 90 degrees into the facade.
The abutment problem in urban places has a domino effect on the design of a facade: if you can't place a roof bracket quite where it wants to be, do you adjust all the brackets so they are evenly spaced, or do you let the spacing of the end one be mismatched? Do you place the windows so they align with the roof details or do you place them symmetrically in the facade without regard to the roof? Which "mistake" would be more or less noticeable?
No answers here, but on a completely different note, as I played with this facade, I found myself wanting to grow something out of the top of the bay. I had no idea why, until I realized that in removing a porch column I had turned the porch into a de facto table... a good place for a vase?
Mmm, maybe not.