The former Engine Company Number Nine Firehouse was one of the first new firehouses constructed after the City of Deering was annexed by the City of Portland on February 2, 1899. During this period the Portland Fire Department reorganized, and this building reflects both their commitment to the Deering area and the increasing professionalism of the fire service. The shift from volunteer to paid firemen, the increasingly sophisticated equipment being developed to fight fires, and the need to upgrade from make-shift wooden structures to permanent firehouses were all important factors that reshaped the architectural form of the firehouse and promoted public health and safety in Portland and throughout the United States. Constructed in 1902-1903 and featuring elements typical of asymmetrical Colonial Revival residential architecture, the brick building has a recessed entry to one side, front facing dormer, side gable with pediment, hipped roof finished with Monson slate, and boxed cornice with dentils. During its seventy years of use the Engine Nine firehouse was adapted to accommodate the technology of motorized apparatus as it continued to develop in the early to mid-twentieth century. The Engine Company Number Nine Firehouse was listed in the National Register of Historic places as a property that significantly reflects community planning and development efforts in Portland.