Hoboken City Hall has been the municipal center for 140 years and continues to house the city's administrative offices. Construction of the building in 1881-83 reflected Hoboken's growth as an industrial and transportation center. Designed by Francis G. Himpler in a distinctive Second Empire style carried out in brick and brownstone, the structure is architecturally significant for its monumental façade with classical detailing, typical of civic architecture in the late 1800s. In 1911, the building was enlarged with the addition of two wings at the front, a jail to the rear and the conversion of the mansard roof into a third story. The third floor was modified for use as an armory during World War I.