The eligible Pacific Heights Historic District is exclusively residential and characterized by detached, two- to three-story single-family dwellings featuring front and side setbacks. The period of significance for the district is circa 1895 to 1930, although the vast majority of properties were constructed between 1905 and 1925. This is reflected in the architecture of the building stock, which includes a few scattered examples of late-Victorian (typically Queen Anne) architecture, but is most frequently characterized by Shingle (or First Bay Tradition), Arts & Crafts, Classical Revival, Colonial Revival, Tudor Revival, French Provincial and Mediterranean Revival design influences. Although a variety of cladding materials and rooflines are present, the district exhibits a cohesive and consistent pattern of massing and setbacks, as well as an overall superior level of architectural detailing and materials. Collectively, the district also embraces one of the densest concentrations of residences designed by master architects in San Francisco. Many of these buildings, particularly those along the north side of Vallejo Street, are large, architect-designed residences featuring superior craftsmanship.