__________________
1. 9 DeKalb Ave - Brooklyn, NYC - SHoP Architects - Photo
2. American Radiator Building - New York City - Hood, Godley, and Fouilhoux - Photo
3. One Chicago Square - Chicago - HPA and Goettsch Partners - Photo
4. Chicago Board of Trade - Chicago - Holabird & Root - Photo
5. Cathedral of Learning - Pittsburgh - Charles Klauder - Photo
It looks like my friend's former landlord sold his building at 65 W Chicago Ave a month ago - the 1 story building at the SE corner of Chicago & Clark next to Assbury Plaza and near One Chicago Square. It's zoned DX-7.