Unless it was locked down, each piece that you clicked on was shifted around a little bit, due to the wonderful building bug that we experienced for about a week.
That means houses/buildings in multiple parts are definitely off of alignment. One customer I had had the upper part of her shop shifted a full .500 meter to the left! Needless to say, it didn't look good
I suggest everyone check their pre-1.1 builds and make sure it's all kosher.
LF