Just barely beat me to it.
Supposedly they had actually begun construction on the house when the order came in to knock down the building. Haven't heard it from an official source though, so as far as I know that's just rumor. They had used the other side of the parade building every year since 2008, but 2012 was the first year they flipped to the other side.
I'll be curious to see whether its home to an original or IP this year.