This is the building on Aiken Rd. when it was new. It replaced offices located in the old passenger depot on Washington. After Michigan Interstate moved out I believe it became some type of secondhand shop, then an abandoned mess until demolished at least 6 years ago. It's too bad it wasn't built adjacent to the shops; it would probably still be in use. I imagine AA built it there because the office workers would appreciate the relatively quiet surroundings, also maybe because Caledonia Twp. taxes were lower.
http://i392.photobucket.com/albums/pp7/Burns581/AA%20offices_zpsu78snrrt.jpg~original

http://i392.photobucket.com/albums/pp7/Burns581/AA%20offices%202_zpsdhrb17vd.jpg~original

http://i392.photobucket.com/albums/pp7/Burns581/AA%20offices%203_zps41xgkgtl.jpg~original