In November, the "War House", which used to be right next door to her home, was set on fire.
Overnight, the "Doll House" or "Party Animal" house, which is also next door to her home, went up in flames.
The feds have been searching for an arsonist for almost a year now.
At this point, the latest fire is being called "suspicious".
The Heidelberg Project was started back in 1986 by Tyree Guyton as an open air art space that uses vacant homes, signs and dolls in response to urban decay.
Today, Guyton was there as Detroit's Arson Squad and the ATF searched for clues, but he had no comment.