Fire at abandoned SLC building under investigation Salt Lake City firefighters responded to a fire at an abandoned building late Monday night. and last updated 2021-03-09 08:45:57-05 SALT LAKE CITY â Salt Lake City firefighters are investigating the cause of a fire that started in an abandoned building late Monday night. It happened at a building near 400 S 200 W. "The main priority, actually, was to make sure the building to the northâthere's a fine arts studio in thereâand the main thing that we're doing is trying to keep fire out of that building and water out of that building," said Battalion Chief Ryan Mellor, Salt Lake City Fire Department.