According to the article, the homeowners added the mansard to add more square footage to the house. It would have been more attractive to leave the original roof and park a mobile home in the back yard.
That said, the window box and garden are so cute I am going to forgive the roof.
I have gotten numerous citizen's bad mansard arrest warrants on this. Thanks to Patsy, Amy and Jeff for letting me know about this one.
Note- this picture is from the Post Dispatch. Betcha didn't know Badmanard has degrees in law, journalism and amateur architecture. Do you subscribe to the Post? You should. Print journalism is becoming a lost art. That, and all the good coupons are in the Sunday paper.