Well the congregation still owns the one my MIL goes to , so far. It's in a bad area of town ( High Crime)
Her previous congregation for 30+ years was first drained of the money saved for a new hall, the property donated was taken ( likely sold by now) and her congregation was eventually merged into the new one.
This is the listing for the previous congregation (that sold the Hall to an artist who is now moving) . https://www.movoto.com/home/1777-white-oak-rd-chattanooga-tn-37415-575_1298544
Interestingly, the one she went to for a little while, her sisters congregation, are also still listed as the owners of the property. Hmm... They are getting a new hall built currently, though. It will be interesting to see how that property is listed.