1932 Hrs... 1st alarm structure fire dispatched Batt. 1, Engines 1,2,4 Truck 2 and Rescue 1. Eng. 2 reports smoke in the area and on arrival 2 story apt. complex, fire from apt. on 2nd floor. Eng. 2 made liveline attack, Eng. 4 backup and water supply, Eng. 1 RIT. Truck 2 and Rescue 1 search, vent and cut utilities. Working notices sent which called Air 1, Safety Officer and Investigator. Fire knocked down and primary search negative. Secondary search found cat hiding in kitchen, smoke inhalation but expected to recover. Fire was in back bedroom with heavy damage to the rest of the apt. Extensive overhaul and salvage due to clutter, investigation underway. All units clear at 2149 Hrs.