At 2337 hours, Box Alarm 29-40 sent Engines 29, 40, 45 (RIT), 21, 44, Trucks 12, 27, and Battalion Chiefs 5, 3 to 4042 Park Heights Ave for the dwelling fire, reported as smoke from the house. Engine 29 arrived with a 2 story, middle of the group, with nothing showing. Upon investigating Truck 12 had smoke on the bravo and Engine 29 had smoke on the north side of Oswego Street. Shortly after Engine 29 reported a building to the rear of the dispatched address has heavy smoke showing. Battalion Chief 5 assumed command advising of a 2 story, auto garage, 150 x 100 at 4119 Reisterstown Road with fire showing from the roof line. First arriving companies had to cut the gate locks to access the lot. Command made this a working fire at 2353 hours bringing Engine 52, Truck 25, Safety Officer 2, Car 5, and Air Flex 1 to the scene. Multiple lines were stretched from Squad 40 and numerous roll up doors had to be cut to place lines in service. Command special called Rescue 1 and Truck 18 for saws to assist in opening up the roll up doors. Once companies gained access and water was put on the fire conditions improved. Truck 12 opened up the roof and a line was also stretched up their aerial to knock down fire in the roof area. The fire was placed under control at 0036 hours and contained to the front 4 bay garages. Companies remained on the scene an extended period of time dousing hot spots in the ceiling and roof area.