cut the building up in photo shop and distort the pieces to loose the feel of perspective on them, then put them together again in AE z-space and put the footage in 3d layers and place it… you can project it onto the sides of the building too for nice fx, there is a great tutorial on projecting in AE by Rich Gerard which deals with footage in this way. I used it to achieve similar to what you want.
https://www.creativecow.net/cgi-bin/page_wrapper.cgi?forumid=2&page=/articles/gerard_rick/Projection_tut/index.html
good luck: /d 🙂