Parking lots. As is the Detroit and Downtown way, much of the city’s cultural heritage was razed for car infrastructure – be it freeways or parking lots.
The discussion of Chinatown in Detroit is usually limited to the decorative marker at Cass and Peterboro that disappeared and then a new one was installed reminding us that Chinatown once existed. However, the Chinatown we think we know was a failed attempt at relocation after the original Chinatown was condemned and demolished for the Lodge Freeway project.
I had always heard or been told that the original Chinatown was at the intersection of Third and Michigan Ave and/or the site of the MGM Grand Casino. After some digging into the photo archives at the Reuther Library and combing through Sanborn Digital Maps, I was able to locate the original locations of the Chinese Cultural Building and the famed Chung’s Chop Suey.
There should, in the least, be a historic marker on the lawn of the Detroit Public Safety HQ to mark Detroit’s original Chinatown.
DETROITography 
Dr Krysta Ryzewski gave a presentation about this 3 yrs ago or so at WSU.
Hi, Alex. Thanks for posting this. My family owned Chung’s. I am interested in talking with anyone who has an interest in this area, including Dr. Ryzewski. I recently sold my memoir, “Everything I Learned, I Learned in a Chinese Restaurant.” It’s about growing up in the Chinatown on Cass and Peterboro. It will be published by Little, Brown in Fall 2023. I can be found at curtisfromdetroit.com