At approximately 1649 hours on Monday, October 3, 2011, Frederick County Emergency Communications Center dispatched a box alarm in company 15's first due area. Units were responding to 6712 Accipiter Drive for the reported house fire. Company 15 units along with Chief 15 arrived on the scene with nothing evident from the exterior of a two story single family dwelling. Crews investigating the interior reporting fire in the walls in the area of the fire place. Chief 15 established command and assigned crews tasks on the interior and exterior. Crews on the interior utilizing hand tools and small bore hand lines to access the fire. Crews on the exterior worked to remove the siding and other material from around the chimney. Interior reporting moderate smoke conditions with no apparent extension beyond the area of origin. As more crews arrived on the scene, a thorough investigation of the basement, second floor, attic space and garage attic space was conducted revealing no fire, just some residual smoke throughout. Crews utilized natural ventilation by opening up the windows throughout the house. Command holding companies 15 and 17 for brief overhaul and clean up.