The Mint-Mission Conservation District is representative of the post-1906 San Francisco earthquake and fire reconstruction period and the evolution of land use patterns at the northern edge o the South of Market neighborhood dating to the mid-nineteenth century. The District retains a mix of residential hotels, small scale commercial buildings, warehouses and manufacturing facilities reflective of the area's role as the center of industrial production in San Francisco and the major supplier of mining equipment, heavy machinery and other goods to the western states. The District encompasses a cohesive concentration of reinforced concrete and brick masonry buildings constructed between 1906 and 1930. The District is particularly notable as it is a survivor of the extensive redevelopment of SoMa in the late twentieth century during which much of the building stock from the period when the neighborhood served as the city's industrial and manufacturing center was razed.