I think this could benefit from more sky - I think the minimal amount of sky at the top is distracting. Maybe a closer shot (if that is possible?) would have been more appropriate. Still - great detail and a great subject. I like it.
You are right this is a very weathered building and in much need of repair, but I can't get past the trash cluttering the ground. On the technical side, however, it is a very good shot, good focus and great lighting. Maybe if it was cropped just above the trash, you would still get the same essense of the original.
I think if you had lessened your field of view and just concentrated on a smaller section of the building, like the entranceway with the rusty gate, it would have had more impact.