Did you ever figure out which buildings you had to break? It says downtown but there is no downtown battle on the map.
there is a specific sidequest where the first time the system will say that clollapsing building will cost you money, specifically is an event with multiple hostages and few mobs on the roof building, if you destroy that building one of the hostages will make a claim about repairing fee.
I wanted to show you the exact location of the event however the system it say there ìs some issues uploading the pic, anyway is diagonally of that sorta of eiffel tower (the round skyscraper).