Building 879 previously served as a tool shed for the nearby hangars. LEGO Construction Co was hired to perform design-build renovation of the building to accommodate a new office space, supply room, and tool room. Mold had been discovered in the existing office, so LEGO performed mold abatement prior to construction along with demolition of existing drywalls, acoustical ceilings, carpet, and insulation. This project encompassed a complete interior renovation including a new HVAC system, electrical system, fire alarm system, and modifications to the fire suppression system. It also included new interior walls, floors, and restrooms, and demolition and rework of the roof. The existing tool room, which divided it from the extension by a CMU wall, was converted into one room and was separated by adding a double door. Once completed, the office space was divided in two for the use of an office room and a supply room.