AFD was on scene at 2510 South Congress Avenue at around 3:45 a.m.
Officials say the fire was exterior and that the sprinkler system stopped the flames from entering the building.
AFD says the call first came in as a grass fire but was later upgraded to a structure fire.
Firefighters were able to put out the flames in around five to ten minutes, according to a spokesperson with AFD. No injuries were reported.
The cause of the fire is still under investigation at this time. Investigators believe this fire was likely caused by a cigarette in mulch that extended to the deck and then the building.